Changing Sedentary Lifestyle Among Adult Utahns

 

by

Wu Xu, Ph.D.; Michael Friedrichs, M.Stat.; Kirsten Davis, B.S.; and Rosemary Thackeray, M.P.H.

 

Abstract

Sedentary lifestyle as a recognized risk factor for health outcomes is a relatively new concept.  Based on analyses of three available data sources, this article presents a multilevel overview of physical activity among Utah adults.  Study I reports a trend of sedentary lifestyle in Utah since the 1980s.  Study II reveals an inconsistency between Utahns’ awareness regarding the benefits of physical activity but apparent lack of action in the 1990s.   In order to meet the challenge of changing sedentary lifestyle in Utah, Studies III and IV examine the influences of ten factors on physical activity, including the effects of individual socio-demographic characteristics, health insurance status, and relationships with others in family and community.   The authors suggest that public health initiatives must be multifaceted; family- and community-focused, specific groups targeted; and grounded in research of health education, social sciences and behavior change, and effective social-marketing.

 

 

Introduction

Considerable research has documented that physical activity reduces the risk for cardiovascular diseases, colon cancer, non-insulin-dependent diabetes mellitus, osteoarthritis,  obesity, and depression, and it also enhances the overall quality of life  (U.S. Department of Health and Human Services, 1996).  Scholars have suggested that physical activity might provide the shortcut public health professionals seek for the control of chronic diseases, similar to immunization-facilitated progress against infectious diseases (McGinnis, 1992).  Therefore, physical activity and fitness have been listed as the first priority area of national health promotion and disease prevention objectives (see Healthy People 2000 or HP2000, U.S.  Department of Health and Human Services, Public Health Service, 1991).  In 1996, the U.S. Surgeon General released a landmark document, Physical Activity and Health: A Report of the Surgeon General, identifying that physical inactivity is a serious, nationwide problem (U.S. Department of Health and Human Services, 1996).

HP2000 proposed to monitor physical activity at three levels, that is, light-to-moderate, vigorous, and no leisure-time physical activity.  Specific objectives were identified for the nation: (a) HP2000 1.3 objective:  to increase to at least 30% the proportion of people aged six and older who engage regularly, preferably daily, in light-to-moderate physical activity for at least 30 minutes per day; (b) HP2000 1.4 objective: to increase to at least 20% the proportion of people aged 18 and older who engage in vigorous physical activity that promotes the development and maintenance of cardiorespiratory fitness three or more days per week for 20 or more minutes per occasion; and (c) HP2000 1.5 objective: to reduce to less than 15% the proportion of people aged six and older who have no leisure-time physical activity (U.S.  Department of Health and Human Services, Public Health Service, 1991).   Since the release of the U.S. Surgeon General’s report, the “public health message” on physical activity has focused on promoting 30 minutes of accumulated physical activity every day.

This article presents a comprehensive review and analysis of adults’ physical activity in Utah from 1985 to 1996 based on data from three population-based surveys, namely, the Behavioral Risk Factor Surveillance System (BRFSS), the 1996 Utah Health Status Surveys, and the 1996 Utah Chronic Disease Awareness Survey.   Physical activity is measured and analyzed at four different levels in this paper.  Appropriate methods were selected for specific analyses.  Due to the complicated nature of the measure, data source, and method for each issue under discussion, the article is organized around specific studies.  A brief literature review and clarification of study method are presented at the beginning of each study, followed by study results.  Study I reports a trend of sedentary lifestyle in Utah since the 1980s.  Study II reveals an inconsistency between Utahns’ awareness regarding the benefits of physical activity and their lack of action in the 1990s.  In order to meet the challenge of changing sedentary lifestyle in Utah, Studies III and IV examine the influences of ten factors on physical activity, including the effects of individual socio-demographic characteristics, health insurance status, and relationships with others in family and community.  At the end of the paper, summary and discussion of major findings from all studies and policy implications are presented.

Study I:  A Trend of Sedentary Lifestyle

In the United States, participation in regular physical activity increased during the 1960s, 1970s, and early 1980s but seems to have plateaued since the mid-1980s  (Pate, Pratt, & Blair, Haskell, Macera, Bouchard  et al., 1995; U.S. Department of Health and Human Services, 1996 p.186).  This pattern has also been observed in Utah. 

Based on the BRFSS survey,[2] Figures 1 and 2 show trends for adults, aged 18 or older, who engaged in light-to-moderate (HP2000 1.3 objective) or vigorous  (HP2000 1.4 objective) physical activity from 1989 to 1996 in Utah, the Rocky Mountain states, and the United States (U.S.).  The two physical activity measures were derived from 10 questions asked in BRFSS (see the Appendix), using a complex formula developed by the Centers for Disease Control and Prevention.  The percentage of the median state among all BRFSS participating states for each year is presented in the figures as the national norm, a comparison point for states.  The 95% confidence intervals were calculated for statistical tests between the point estimates of the states and the percentage of the median state, and between Utah and the Rocky Mountain states’ estimates.  SUDAAN, a software program for analyzing complex sample-survey data, was used for standard error estimates (Shah, 1981).

In 1996, approximately 27% of adult Utahns, 24% of adult residents of Rocky Mountain states, and only 21% of adults from the median state engaged in light-to-moderate physical activity.  Adult Utahns had a significantly higher rate in performing light-to-moderate exercise than did adults living in the entire Intermountain West in 1991, 1992, and 1996 (Figure 1). Correspondingly, 16.1% of Utah adults and 15.9% of Rocky Mountain states’ adults participated in vigorous physical activity, significantly higher than the national norm for adults (14%) (Figure 2).

For the past decade, adults in Utah and Rocky Mountain states were more likely to participate in physical activity than adults in the U.S. as a whole.  However, BRFSS data indicate that Utah’s physical activity levels are still lower than the desired goals defined by HP2000.  There have been no significant changes in the level of physical activity in Utah since 1989.  The median percentage of regular-vigorous, as well as light-to-moderate, physical activity has slightly increased nationwide since 1992, but this trend has not occurred in Utah.

 

Study II:  Inconsistency between Awareness and Behavior

Physical activity behavior is related to an individual’s perception about his or her own physical fitness and health risks.  A recent study showed that those Utahns who consider exercise important to their health were approximately 1.5 times more likely to engage in exercise than those who did not consider it important (Larsen & Friedrichs, unpublished). 

The Utah Bureau of Chronic Disease Prevention and Control recently conducted a chronic disease awareness survey to examine what Utahns knew about their health risks and what they did about it (Larsen & Friedrichs, unpublished).  Six questions on awareness of health risks were added to the BRFSS ongoing survey during April to June 1996.  The responses to the awareness questions were compared with the respondents’ self-reported behavior recorded in the same survey and with Utah’s specific mortality rates reported by the Utah Office of Public Health Data.

Generally speaking, the public in Utah is aware of the importance of physical activity for health.  In the survey, not smoking, regular exercise, and healthy diet were listed by more than 70% of respondents (N’725) as the three most important things one should do to stay healthy.  However, respondents’ self-reported behaviors for regular exercise were not consistent with those beliefs.  Figure 3 contrasts Utah adults’ beliefs about health behaviors with their reported actions regarding them.  Among those respondents who reported that not smoking was an important health behavior, approximately 92% of them did not smoke.  Yet, only 35% of persons who reported exercise as an important health behavior and 21% of persons who reported healthy diet as important were reported acting on those beliefs.

 

Study III: Socio-Demographic Differentials in Lifestyle

Attitude towards physical activity is only one of the determinants influencing the patterns of sedentary lifestyle.  Literature has suggested that exercise behavior is associated with individual socio-demographic characteristics, relationships with others in family and community, and interactions with health professionals and health insurance companies (O’Neill & Reid, 1991; Sallis & Hovell, 1990).  Study III, based on the available data in BRFSS, further explored the effects of gender, age, education, individual annual income, and employment status on an individual’s physical activity.

In Study III, sedentary lifestyle is defined as a respondent who engaged in leisure-time physical activity less than three times per week for 20 minutes per occasion.  In other words, Study III focuses on those whose physical activities did not meet HP2000 objectives 1.3 or 1.4 or who did not engage in regular leisure-time exercise.  In order to statistically control the effect of historical time on individuals’ physical activity, tests for linear trends in the prevalence estimates of sedentary lifestyle were performed for each socio-demographic subgroup from 1985 to 1992, 1994, and 1996.  The selected trend analysis method is appropriate for proportions obtained from categorical responses, as recommended by Armitage (1955).  The results of chi-square tests for the trend analyses are reported in Table 1.  The findings indicated no statistically significant increase or decrease in sedentary lifestyle in each socio-demographic subgroup during the past 12 years.  Thus, Study III only reported the number and percentage of Utah adults, aged 18 or older, who reported sedentary lifestyle by socio-demographic subgroups in 1996 (see Table 1).

Approximately half of adult Utahns (46.7%) were sedentary in 1996.  People with a high school education or lower had a significantly higher percentage (51.2%) not engaging in regular physical activity than the college graduates (39.7%).  People with annual income less than $20,000 were more likely to report a sedentary lifestyle (53.7%) than their more affluent and educated counterparts (45.0%).  Homemakers, college students, or retired persons were less likely to be sedentary than their employed counterparts.  Gender and age differentials in sedentary lifestyle were not statistically significant.

In order to further investigate the socioeconomic status (SES) variation of physical inactivity, an additional trend analysis was conducted on the refined five income subgroups: (a)  <$10,000, (b) $10,000-19,999, (c) $20,000-34,999, (d) $35,000-50,000, and (e) >$50,000.  A significant decline of the percentage of persons who reported being sedentary from 1985 to 1996 only existed in the group of Utah adults with annual individual income higher than $50,000 (N=1,952, X2=13.51, df=1, p=.000).  The “better-off” Utahns became significantly less likely to be sedentary over the past twelve years.

 

Study IV: Effects of Family, Multiple Roles, Religious Network, and Health Insurance Status

The focus of promoting physical activity should move beyond the individual level.  Social encouragement or discouragement creates pressures on individuals to engage in or to avoid certain health-related behavior (Waldron, 1988).  Family and friends can be role models, provide encouragement, or be companions during physical activity (Pate et al., 1995).  Leisure-time exercise also requires an investment of time.  People with fewer family and work roles/obligations are more likely to engage in regular exercise than those with more roles/obligations.  Women experience more time constraints than men (Bird & Fremont, 1991). Given the same career commitments, women are more likely than men to spend their off-work time in housework, child care, and helping others rather than in leisure activities (Hochschild, 1989).  Furthermore, religiosity, in the broadest sense, can be an indicator of social networking and community culture to which an individual belongs (Idler, 1987).  Researchers have found a negative relationship between smoking and religious involvement (Dwyer, Clarke, & Miller, 1990; Gardner & Lyon, 1982).  There may also be a positive relationship between physical activity and religious involvement.  In addition, having health insurance may link an insured person to a health information distribution system and expose him or her to more health promotion information, including the benefits of physical activity.  These hypothetical relationships between the likelihood of physical activity and  household members exercise habits, an individual’s multiple roles, a person’s religious network, and one’s health insurance status are tested in Study IV.

The data for Study IV came from the third Utah household telephone health status survey2 conducted by the Utah Department of Health in 1996.  Respondents, age 18 to 64, were selected for the analysis.  The dichotomous measure of regular vigorous exercise was obtained from the following question: “Does anyone living in your household, age six or older, do vigorous exercise for 20 minutes at least three times a week?” (see the Appendix for details)   The 1996 Utah Health Status Survey (UHSS) contains more household and social-network variables than does BRFSS.  Therefore, UHSS enables researchers to analyze physical activity in a broad social context.  However, the UHSS’ physical activity measure is not used for official prevalence estimates by the Utah Department of Health.

In Study IV, the effects of family or household were measured by whether or not any other adult member of the household participated in regular vigorous exercise.  For the analysis of multiple roles’ effect, a combined measure of an individual’s marital, employment, and parental status is created with eight categories: (a) married, full-time employed, being a parent; (b) married, full-time, not a parent; (c) married, not full-time, a parent; (d) married, not full-time, not a parent; (e) not married, full-time, a parent; (f) not married, full-time, not a parent; (g) not married, not full-time, a parent; and (h) not married, not full-time, and not a parent.  The first category represents having three time-demanding roles/obligations; whereas the last category is the comparison group for this analysis, indicating those without any of these  roles/obligations.  Religious network is measured by religious affiliation and involvement.  Since the Church of Jesus Christ of Latter-Day Saints (LDS) is the predominant religion in Utah and approximately 68% of the respondents were self-reported LDS members in this analysis, religious affiliation was coded as LDS, other religions, or no religion.  Respondents, who reported religious affiliation and attended services once a week or more, were considered “active,” whereas respondents reporting an affiliation but less attendance were considered “less active.”  The variable of religious affiliation and involvement had four categories: (a) active LDS,  (b) less active LDS, (c) active other religion, and (d) less active other religion or no religion.  Health insurance status was measured by a dichotomous variable.  In order to control the effect of gender and education, all analyses were conducted within each of the six gender-education subgroups.  The results of bivariate analysis are reported in Table 2, that is, the number and percentage of adults who engaged in regular vigorous exercise by family and social network variables according to gender-education subgroups.  The results of multivariate analysis (odds ratios from a multiple logistic analysis, conducted by the statistical software SAS and SUDAAN) are presented in Table 3.  The important findings from the logistic regression analysis are highlighted below.

 

 

Effects of Family or Household

There was a significant positive effect on an individual’s exercise behavior regardless of gender or education when another adult member of the household participated in vigorous exercise.  Individuals living in a household with adults who did not engage in vigorous exercise had approximately an one-fifth to one-third likelihood of participating in vigorous exercise themselves compared to those who lived with physically active members.

 

Effects of Multiple Roles

The analysis demonstrated significant opposite effects on regular vigorous exercise by multiple roles for men and women at the highest education level.  Among college-educated women, those who were married, full-time employed, and not a parent were less likely to engage in physical activity than those who were not married, not full-time employed, and not a parent.  However, male college graduates who were married, full-time employed, and not a parent were five times more likely to engage in vigorous exercise than those male college graduates without those obligations.  Different results for men and women were also observed at the lowest education level.  Multiple roles/obligations had no significant effect on engaging in regular vigorous exercise among women reporting high school or less education; whereas men with the same level of education, being full-time employed regardless of their marital and parental status, were significantly less likely to engage in regular vigorous exercise than their comparison group.  These findings indicate an interactive effect of gender, education, and multiple roles on physical activity.

 

Effects of Religious Affiliation and Involvement

Approximately 49% of  LDS members, age 18 to 64, engaged in regular vigorous exercise at least three times per week; so did 56% of non-LDS or nonreligious persons in the same age group. (The data are not reported in Table 2.) Among male college graduates, active LDS persons were significantly less likely to engage in vigorous exercise than all other groups.  Among women with some college education, there was no difference in participation in vigorous exercise between LDS groups.  However, women of other or no religion with some college education were more likely to participate in vigorous exercise than their LDS counterparts.  The religious effect was not statistically significant with regard to the likelihood of vigorous exercise among men with some college education or women with college degrees.

 

Effects of Health Insurance Coverage

Approximately 42% of uninsured persons engaged in regular vigorous exercise compared with 54% of insured persons.  The results of logistic regression indicated that uninsured women with some college or higher education were less likely to participate in regular vigorous exercise than women with health insurance at the same level of education.  Health insurance status had no influence on regular vigorous exercise among men.

 

Summary and Discussion

Sedentary lifestyle as a recognized risk factor for health outcomes is a relatively new concept (National Center for Health Statistics, 1997).  Improving the understanding of physical activity in Utah is urgently needed in order to make local promotion endeavors more effective.  As a part of the efforts and based on the available data, this article has presented a relatively comprehensive picture of physical activity in Utah.

Utah is a relatively healthy state.  However, the trend of sedentary lifestyle in Utah since the 1980s, identified by Study I, highlighted an area in which Utah adults can further improve their health.  Since Utahns and residents in the Rocky Mountain states, on average, have a more active lifestyle than other parts of the nation, Utah with other Rocky Mountain states needs to develop specific strategies to increase physical activity.  For example, strategies need to be introduced which will reduce the disparity between the awareness of the benefits of physical activity and the behavior of physical inactivity in Utah as reported in Study II.

There are several possible explanations for the disparities between awareness and behavior regarding physical activity discussed in Study II.  First, the small disparity on the issue of smoking versus the large disparity for exercise and diet could be the result of the long history of public health programs aimed at reducing smoking compared to those more recently developed toward the promotion of regular physical activity and a healthy diet.  Second, although researchers demonstrated that physical activity and fitness can reduce the risk of heart disease (Sopko, Obarzanek, & Stone, 1992), an individual might not perceive that heart disease could be a risk for his/her own health and that exercise could directly impact on one’s well-being.  Heart disease has been the leading cause of deaths in Utah since the 1940s (Owens & Dandoy, 1987), yet only 38.4% of adult Utahns were aware of this fact (Larsen & Friedrichs, unpublished).  Third, knowledge of the benefits of physical activity does not automatically translate to exercise behavior.  In addition to believing that regular exercise is beneficial, the public needs to have increased opportunities for participation and skill development in this area.

The findings from Study III suggest that public programs on physical activity should target promotion efforts on those Utah adults who have less education or income and who are employed.  These recommendations are also supported by the results from a multiple logistic analysis on the combined 1985-1996 Utah BRFSS data, recently conducted by the Utah Bureau of Health Education (UBHE).  The UBHE’s study found that income, education, race, gender, employment status, and marital status have independent effects on sedentary lifestyle in Utah (Utah Bureau of Health Education, 1998).  The findings also pointed out that non-Whites are more likely to be sedentary than Whites and that there is no statistically significant difference in physical activity between residents in urban and rural areas of Utah.

Study IV further refines the target populations (lower SES group) defined in Study III.  Study IV suggests that full-time employed men with low SES are more likely to have a sedentary lifestyle.  Moreover, the authors encourage readers to consider the effects of family, individuals’ multiple roles, religious networks, and health insurance status on physical activity, which have not been well-documented in current literature.  The study showed that social environment or system setting plays a role in facilitating or hindering an individual’s physical activity.  Other adults in the household engaging in regular vigorous exercise had a consistent positive effect on one’s exercise behavior across the six gender-education groups.  This finding is also consistent with the results of a similar study based on the 1991 Utah Health Status Survey (Xu, Stinner, & Paita, 1992).  Both researches suggest that public health messages on physical activity should include the family and household in the targeted audiences.  Attention also needs to be given to the effects of multiple roles and religious networks on physical activity in Utah.  Although, Xu and colleagues also discovered the statistically significant effects of multiple roles and religious affiliation and involvement on exercise, some of their findings (the results of statistical tests, the strength and direction of relationships) are different from those reported in Study IV.  These variations could be attributed to the changes that occurred during the five years between these two surveys as well as the difference in measuring regular vigorous exercise as well (see the Appendix).  Therefore, it may be too soon to implement Study IV’s findings on multiple roles and religious networks into the promotion of physical activity, unless a study, based on comparable measures, replicates the findings of Study IV.

The factor of health insurance status in Study IV was conceptualized as a health system effect.  Based on the available information, the authors cannot completely explain how having  health insurance coverage affects exercise behavior, especially for women with some college education or higher.  However, considering communication or information flow between  managed care organizations (MCOs) and their enrollees has been expanded and increased with the penetration of MCOs in the 1990s, this study suggests that MCOs could be an influential partner in a community coalition to promote physical activity in Utah.

The U.S. Surgeon General’s report pointed out the most effective interventions occur on multiple levels (U.S. Department of Health and Human Services, 1996).  Three system and community-based strategies affecting sedentary adults are recommended by HP2000: (a) to increase the proportion of worksites offering employer-sponsored physical activity and fitness programs; (b) to increase community availability and accessibility of physical activity facilities such as fitness trails, public swimming pools, park and recreation open space; and (c) to increase the proportion of primary care providers’ counsel on physical activity (U.S. Department of Health and Human Services, Public Health Service, 1991).   Utah public health agencies, voluntary organizations, and advocates have implemented some of these recommendations in the 1990s, including the Utah Governor’s Council on Health and Physical Fitness annual worksite health promotion conference and the Eat Smart Move Smart Initiative.  However, there has not yet been available data to evaluate these efforts.

In sum, to change the trend of sedentary lifestyle in Utah, public health initiatives must be multifaceted, family- and community-focused, targeted to specific groups, as well as grounded in the research of health education, social sciences and behavior change, and effective social-marketing.  Increased public attention to immediate and long-term benefits from physical activity could include campaigns highlighting the relationship between quality of life,  risk factors, and chronic diseases .  In addition, community-level allocation of resources promoting structural changes that create a supportive environment for active lifestyles, is also needed.  These changes can occur through community initiatives which involve schools, employers, health insurance companies, and community and religious organizations.  Utahns can become a healthier population if schools, government, and other social institutions act together to achieve this common goal.

 

References

Armitage, P. (1955). Tests for Linear Trends in Proportions and Frequencies. Biometrics, 11, 375-386.

 

Bird, C. E. & Fremont, A. M. (1991). Gender, Time Use, and Health. Journal of Health and Social Behavior, 32, 114-129.

 

Dwyer, J. W., Clarke, L. L., & Miller, M. K. (1990). The Effect of Religious Concentration and Affiliation on County Cancer Mortality Rates. Journal of Health and Social Behavior, 31, 185-202.

 

Gardner, J. W. & Lyon, J. L. (1982). Cancer in Utah Mormon Women by Church Activity Level. American Journal of Epidemiology, 116, 243-257.

 

Hochschild, A. R. (1989). The Second Shift: Working Parents and the Revolution at Home. New York: Viking.

 

Idler, L.I. (1987). Religious Involvement and the Health of the Elderly: Some Hypotheses and an Initial Test. Social Forces, 66, 226-238.

 

Larsen, L., & Friedrichs, M. (unpublished). What Do Utahns Know about Their Health Risks and What Do They Do about It?  Salt Lake City: Utah Department of Health, Bureau of Chronic Disease Prevention and Control.

 

McGinnis, J. M. (1992). The Public Health Burden of a Sedentary Lifestyle. Medicine and Science in Sports and Exercise, 24, S196-S200.

 

National Center for Health Statistics. (1997). Healthy People 2000 Review, 1997.  Hyattsville, MA: Public Health Service.

 

O’Neill, K., & Reid, G. (1991). Perceived Barriers to Physical Activity by Older Adults. Canadian Journal of Public Health, 82, 392-396.

 

Owens, M.M., & Dandoy, S. (1987). A History of Public Health in Utah. Salt Lake City: Utah Department of Health.

 

Pate, R. R., Pratt, M., Blair, S. N., Haskell, W. L., Macera, C. A., Bouchard, C., Buchner, D., Ettinger, W., Heath, G. W., King, A. C., Kriska, A., Leon, A. S., Marcus, B. H., Morris, J., Paffenbarger, R. S., Patrick, K., Pollock, M. L., Rippe, J. M., Sallis, J., & Wilmore, J. H. (1995). Physical Activity and Public Health: A Recommendation from the Centers for Disease Control and Prevention and the American College of Sports Medicine. JAMA, 273, 402-407.

 

Sallis, J. F., & Hovell, M. F. (1990). Determinants of Exercise Behavior. Exercise and Sport Sciences Reviews, 18, 307-330.

 

Shah, B.U. (1981). SUDAAN: Standard Errors Program for Computing Standardized Rates from Sample Survey Data. Research Triangle Park, NC: Research Triangle Institute.

 

Sopko, G., Obarzanek, E., & Stone, E. (1992). Overview of the National Heart, Lung, and Blood Institute Workshop on Physical Activity and Cardiovascular Health. Medicine and Science in Sports and Exercise, 24, S192-S195.

 

U.S. Department of Health and Human Services. (1996). Physical Activity and Health: A report of the Surgeon General. Atlanta, GA: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion.

 

U.S. Department of Health and Human Services, Public Health Service. (1991). Healthy people 2000: National Health Promotion and Disease Prevention Objectives. Washington, DC: U.S. Government Printing Office.

 

Utah Bureau of Health Education. (1998).  Physical activity in Utah.  Salt Lake City: Utah Department of Health.

 

Utah Bureau of Surveillance and Analysis. (1997). 1996 Utah Health Status Survey Report: Health Insurance Coverage. Salt Lake City: Utah Department of Health.

Waldron, I. (1988). Gender and Health-Related Behavior. In D. S. Gochman (Ed.), Health Behavior: Emerging Research Perspectives (pp. 193-208). New York: Plenum Press.

 

Xu, W., Stinner, W. F., & Paita, L. (1992, April). Do Gender and Social Class Jointly Condition the Impact of Contextual and Personal Attributes on Health Risk-Taking and Preventive Behavior? Paper presented at the annual meeting of the Western Social Sciences Association, Denver.

 

Appendix:  Measures of Physical Activity in this Study

A.        The measures of  light-to-moderate and vigorous physical activity in Study I and II, and sedentary lifestyle in Study III, were calculated from the following questions in the Behavioral Risk Factors Surveillance System from 1985 to 1992, 1994, and 1996:

 

a1.        During the past month, did you participate in any physical activities or exercises such as running, calisthenics, golfing, gardening, or walking for exercise?

 

a2.        What type of physical activity or exercise did you spend the most time doing during the past month?

 

a3.        How far did you usually walk/run/jog/swim?

 

a4.        How many times per week or per month did you take part in this activity during the past month?

 

a5.        When you took part in this activity, for how many minutes or hours did you usually keep at it?

 

a6.        Was there another physical activity or exercise that you participated in during the last month?

 

a7.        What other type of physical activity gave you the next most exercise during the past month? (Repeat Questions a3, a4, a5 for the second type of physical activity.)

 

B.         The measures of regular vigorous exercise were calculated from the following questions in the 1996 Utah Health Status Survey and were used for Study IV:

 

b1.        Now I’d like to ask about vigorous exercise. By that I mean exercise that increases heart and breathing rates a lot faster than usual.  Does anyone living in your household, AGE 6 OR OLDER, do vigorous exercise for 20 minutes at least THREE times a WEEK?

 

b2.        I need to list all household members who exercise vigorously at least 20 minutes three times a week starting with the oldest?

C.         The measures of routine exercise were calculated from the following questions in the 1991 Utah Health Status Survey and were compared with Study IV’s measures and discussed in the summary and discussion:

c1.        Do any of the members of the household exercise vigorously at least three times a week?

 

c2.        Which (other) members of the household exercise routinely?

 

 

About the Authors

Kirsten Davis is a research analyst at the Office of Public Health Data, Utah Department of Health (UDOH). She has a BS degree in sociology from the University of Utah.  She is currently finishing work on her MStat degree.

Michael Friedrichs has an MS degree in statistics. He is an information analyst at the Bureau of Chronic Disease Prevention and Control (UDOH).

Rosemary Thackeray is a program manager for physical activity at UDOH. She has an MPH degree from the University of Utah. She is currently working on a PhD degree in Health Education.

Wu Xu has a PhD degree in sociology. She is the data resources program manager at the Division of Community and Family Health Services (UDOH). She is also an adjunct assistant professor in the Department of Sociology, University of Utah.

 

            The authors sincerely acknowledge the anonymous reviewer’s and editorial board’s comments and John Ross’ editorial help.


Table 1. Percentage of Respondents Aged 18+ Years Reporting Participation in Leisure-Time Physical Activity Less Than 3 Times per Week for 20+ Minutes per Occasion

(The socio-demographic characteristics, 1996, and the chi-square tests for linear trends in the prevalence estimates (percentages) during 1985 to 1992, 1994 and 1996a, are based upon the Utah Behavioral Risk Factors Surveillance System.)

Socio-Demographic Characteristics

 

1996

 

 

 

1985-1996

 

 

 

95% CI

 

Linear Trend Tests

 

N

%

Lower

Upper

 

X2 (df=1)

pb

All Respondents

2,887

46.7

44.3

49.1

 

0.098

0.754

Gender

 

 

 

 

 

 

 

    Male

1,255

47.8

44.3

51.3

 

0.199

0.656

    Female

1,623

45.6

42.4

48.8

 

0.000

1.000

Age

 

 

 

 

 

 

 

    18-24

378

44.5

38.3

50.6

 

0.053

0.818

    25-39

959

47.8

43.7

51.9

 

0.099

0.753

    40-64

1,043

48.1

44.0

52.3

 

0.018

0.895

    65 and older

506

42.9

37.7

48.0

 

3.734

0.053

Education

 

 

 

 

 

 

 

    High School Graduate or lower

1,192

51.2

47.6

54.9

 

0.079

0.779

    Tech/Some College

905

47.4

43.2

51.7

 

0.802

0.371

    College Graduate or Higher

785

39.7

35.3

44.1

 

0.443

0.506

Annual Income

 

 

 

 

 

 

 

    <$20,000

553

53.7

48.2

59.3

 

2.117

0.146

    $20,000 +

2,090

45.0

42.2

47.7

 

1.918

0.166

Employment Status

 

 

 

 

 

 

 

    Employed

1,864

48.1

45.1

51.1

 

0.995

0.318

    Unemployed

130

65.5

54.5

76.5

 

3.362

0.067

    Home/Student/Retired

889

40.8

36.7

44.9

 

0.080

0.778

a Statistical tests for linear trends in proportions and frequencies were performed based upon the method recommended by P. Arimtage (Arimtage, 1955).

b Significant at p < 0.05.

 

Table 2. Percentage of Respondents Aged 18-64 Years Reporting Participation in Regular Vigorous Exercise1 by Selected Characteristics: Utah Health Status Survey, 1996

 

 

 

 

 

Total

 

Men

 

Women

Selected Characteristics

 

 

 

H.S. Grad.-

Some College

Coll. Grad.+

 

H.S. Grad.-

Some College

Coll. Grad.+

 

 

 

 

 

N

%

 

N

%

N

%

N

%

 

N

%

N

%

N

%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All Respondents

 

 

5,473

52.2

 

904

48.1

940

53.0

863

59.1

 

1,030

47.0

1,067

49.8

669

59.9

Other Adults in Household Participate in Regular Vigorous Exercise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

2,981

37.3

 

548

31.7

466

39.2

412

40.7

 

636

32.5

594

38.0

325

47.8

 

Yes

 

 

 

2,427

70.7

 

329

74.2

461

67.1

444

76.0

 

386

70.5

466

65.7

340

72.0

Multiple Roles

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Married

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Full-Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parent

1,486

49.0

 

260

33.8

364

51.8

443

56.5

 

178

49.5

122

45.8

119

48.6

 

 

 

Not Parent

788

50.6

 

153

38.0

129

44.2

188

68.2

 

109

45.4

118

55.3

91

44.9

 

 

Not Full-Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parent

1,036

53.7

 

27

20.3

64

47.3

52

69.5

 

285

51.0

395

51.5

213

64.5

 

 

 

Not Parent

471

48.1

 

47

49.8

64

36.7

53

62.9

 

113

43.4

138

44.1

57

64.6

 

Not Married

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Full-Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parent

363

50.6

 

108

44.2

35

68.0

10

63.6

 

104

41.9

65

56.1

42

62.6

 

 

 

Not Parent

525

61.5

 

122

62.6

100

66.4

67

59.5

 

60

57.7

92

50.0

84

71.1

 

 

Not Full-Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parent

363

55.6

 

95

71.3

65

39.2

2

95.2

 

111

47.0

71

62.0

19

54.5

 

 

 

Not Parent

426

54.3

 

83

76.4

118

69.9

47

27.1

 

70

31.1

66

32.6

41

70.5

Religious Affiliation/Involvement

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Less Active Otherb/No religion

1,051

54.4

 

265

51.6

221

62.5

74

63.4

 

285

42.1

153

53.5

52

60.5

 

Active Other Religionb

342

61.2

 

48

33.8

39

56.9

59

88.2

 

78

60.9

63

60.7

55

60.0

 

Less Active LDS

1,384

45.0

 

334

33.7

215

46.3

207

73.7

 

273

46.1

102

44.1

147

52.7

 

Active LDS

 

 

2,616

52.6

 

239

61.6

454

51.4

503

51.4

 

387

48.2

629

49.0

402

60.3

Health Insurance Status

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Uninsured

 

 

621

42.1

 

143

43.8

108

56.2

45

41.6

 

167

36.6

119

36.8

38

36.9

 

Insured

 

 

4,802

53.7

 

745

48.8

830

52.6

817

59.9

 

837

49.5

941

51.8

630

61.3

Age Groupsc

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Age 41-64

 

 

2,109

49.1

 

252

38.6

322

43.1

460

61.7

 

363

39.5

427

45.3

285

62.7

 

Age 18-40

 

 

3,364

54.2

 

652

51.8

618

58.1

404

56.0

 

667

51.0

640

52.9

383

57.8

Health Statusc

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Poor/Fair

 

 

472

35.4

 

105

40.0

52

25.4

26

38.0

 

161

32.8

95

36.4

33

43.5

 

Good/Very Good/ Excellent

4,997

53.9

 

796

49.3

888

54.6

838

59.7

 

869

49.6

972

51.2

634

60.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

aVigorous exercise increases heart and breathing rates a lot faster than usual for 20 minutes at least 3 times a week.

bOther religion includes non-LDS persons who reported having a religious affiliation.

 cUsed as control variables.

Note: Results have been adjusted for random sampling variation and disproportionate sampling based on the population estimates provided by the Utah Governor's Office of Planning and Budget in 1994.

 


Table 3.  Odds Ratio From Logistic Regression Analysis of Regular Vigorous Exercisea by Gender and Education Level: Utah Adults Age 18-64, Utah Health Status Survey, 1996

 

 

 

 

 

 

Men

 

 

 

Women

 

 

Selected Characteristics

H.S. Grad.-

Some College

Coll. Grad.+

 

H.S. Grad.-

Some College

Coll. Grad.+

 

 

 

 

 

OR

OR

OR

 

OR

OR

OR

Other Adults in Household Participate

in Regular Vigorous Exercisea

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

0.14*

0.22*

0.21*

 

0.19*

0.29*

0.32*

 

Yes

 

 

1.00

1.00

1.00

 

1.00

1.00

1.00

Multiple Roles

 

 

 

 

 

 

 

 

 

Married

 

 

 

 

 

 

 

 

 

 

Full-Time

 

 

 

 

 

 

 

 

 

 

Parent

0.08*

0.39*

4.25*

 

1.38

1.97

0.27

 

 

 

Not Parent

0.11*

0.36*

5.31*

 

1.51

2.83*

0.22*

 

 

Not Full-Time

 

 

 

 

 

 

 

 

 

 

Parent

0.03*

0.31

8.49*

 

1.84

2.40*

0.59

 

 

 

Not Parent

0.23

0.2*

4.12

 

1.30

1.96

0.40

 

Not Married

 

 

 

 

 

 

 

 

 

Full-Time

 

 

 

 

 

 

 

 

 

 

Parent

0.12*

0.71

5.71

 

1.33

4.51*

0.61

 

 

 

Not Parent

0.32*

1.06

5.55*

 

3.00

2.21

1.00

 

 

Not Full-Time

 

 

 

 

 

 

 

 

 

 

Parent

0.27

0.15*

116.11*d

 

1.30

4.02*

0.50

 

 

 

Not Parent

1.00

1.00

1.00

 

1.00

1.00

1.00

Religious Affiliation/Involvement

 

 

 

 

 

 

 

 

Less Active Otherb/No Religion

0.68

1.70

1.97*

 

1.10

1.71*

1.23

 

Active Otherb Religion

0.41

1.22

8.28*

 

2.39*

2.62*

1.36

 

Less Active LDS

0.32*

0.88

3.57*

 

1.32

0.94

0.80

 

Active LDS

1.00

1.00

1.00

 

1.00

1.00

1.00

Health Insurance Coverage

 

 

 

 

 

 

 

 

Uninsured

0.92

0.80

0.85

 

0.70

0.5*

0.28*

 

Insured

 

1.00

1.00

1.00

 

1.00

1.00

1.00

Age Groupsc

 

 

 

 

 

 

 

 

 

Age 41-64

0.75

0.60

1.11

 

0.60

0.75

1.38

 

Age 18-40

1.00

1.00

1.00

 

1.00

1.00

1.00

Health Statusc

 

 

 

 

 

 

 

 

 

Poor/Fair

 

0.80

0.42

0.37

 

0.68

0.65

0.53

 

Good/Very Good/Excellent

1.00

1.00

1.00

 

1.00

1.00

1.00

Model

 

 

 

 

 

 

 

 

 

 

       N

 

 

 

 747

 720

 657

 

 1,094

 1,121

 699

       Approximate Chi-Square

240.8*

117.4*

129.17*

 

187.93*

130.4*

86.4*

       Degrees of Freedom

10

10

10

 

10

10

10

*Significant at p.<0.05.

aVigorous exercise increases heart and breathing rates a lot faster than usual for 20 minutes at least 3 times a week.

bOther religion includes all non-LDS persons who reported having a religious affiliation.

cUsed as control variables.

dThe value of odds ratio is unreliable due to small number of cases in the cell (N=2).