What factors explain socioeconomic inequalities in adults' television-related sitting time?

作者：Mackenbach, Joreintje D.^*; de Groot, Rosa; Lakerveld, Jeroen; De Cocker, Katrien; Cardon, Greet; De Bourdeaudhuij, Ilse; Compernolle, Sofie

来源：The European Journal of Public Health, 2019, 29(2): 248-254.

DOI：10.1093/eurpub/cky170

• PHYSICAL-ACTIVITY QUESTIONNAIRE
• SEDENTARY BEHAVIOR
• MEDIATION ANALYSIS
• OLDER-ADULTS
• HEALTH
• DETERMINANTS
• RELIABILITY
• ASSOCIATION
• INDICATORS
• IMPUTATION

Background: There are considerable socioeconomic inequalities in television-related sitting time, but there is little evidence for the explanatory mechanisms. We used a cohort of Belgian adults (25-60 years) and older adults (>= 65 years) to examine the social cognitive, home environmental and health-related factors contributing to socioeconomic differences in television-related sitting. Methods: We included 301 adults and 258 older adults (total n = 559). Linear regression analyses were used to examine the associations of education and occupational status with television-related sitting time, adjusted for age and gender. We assessed the explanatory power of social cognitive, home environmental and health-related factors using the traditional 'change-in-estimation method'. Results: Those with low and medium education, respectively, engaged in 54 and 28 minutes per day more television-related sitting time than those with high education. We found no association between occupational status and television-related sitting time. Social cognitive factors explained 54% of the difference in television-related sitting time between those with low and high education, while home environmental factors only explained 6%, and health-related variables explained 10% of these differences. Conclusion: We found no occupational inequalities in television-related sitting time. Social cognitive variables such as attitude and modelling of the partner explained a large part of the educational inequalities in television-related sitting time. If confirmed by future studies, a focus on social cognition may help reduce sedentary behaviours in low-educated adults and diminish inequalities in sedentary behaviours.

• 出版日期2019-4