Projects per year
Abstract
Objectives: To quantify the mediating role of leisure time physical activity (LTPA) and five dietary behaviours on educational differences in 13-year body mass index (BMI) gain across adulthood. Methods: Participants from the Melbourne Collaborative Cohort Study (4791 women; 3103 men) who maintained or gained BMI over 1990–1994 to 2003–2007 and met our inclusion criteria were selected. Education, potential mediators and confounders (age, alcohol, and smoking) were measured at baseline. We conducted sex-specific multiple mediation analyses using MacKinnon’s product of coefficients method. Results: A higher educational attainment was associated with a 0.27 kg m−2 (95% CI 0.14, 0.39) lesser 13-year BMI gain among women only. We observed significant indirect effects of educational attainment on 13-year BMI gain through LTPA and nutrient-rich foods (each associated with a higher educational attainment and lesser 13-year BMI gain) and diet soft drink (associated with a lower educational attainment and greater 13-year BMI gain), which mediated 10, 15 and 20% of this relationship, respectively (45% in total). Conclusions: Nutrient-rich foods, LTPA and diet soft drink may represent effective public health targets to reduce inequities in excess weight across adulthood.
Original language | English |
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Pages (from-to) | 883-893 |
Number of pages | 11 |
Journal | International Journal of Public Health |
Volume | 63 |
Issue number | 7 |
DOIs | |
Publication status | Published - Sept 2018 |
Keywords
- Diet, food, and nutrition
- Longitudinal studies
- Mediation analysis
- Obesity
- Physical activity
- Socioeconomic factors
Projects
- 2 Finished
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What will it take to decrease socio-economic inequalities in obesity?
Beauchamp, A. (Primary Chief Investigator (PCI)), Ball, K. (Chief Investigator (CI)), Magliano, D. (Chief Investigator (CI)), Stevenson, C. (Chief Investigator (CI)), Martin, J. (Partner Investigator (PI)) & Peeters, A. (Partner Investigator (PI))
Australian Research Council (ARC), Victorian Health Promotion Foundation (trading as VicHealth), Baker Heart and Diabetes Institute, Cancer Council Victoria
3/01/12 → 31/12/14
Project: Research
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The Epidemiology of Chronic Disease, Health Interventions and DNA studies (ECHIDNAs)
Tonkin, A. (Primary Chief Investigator (PCI))
National Health and Medical Research Council (NHMRC) (Australia)
1/01/02 → 31/12/06
Project: Research