Associations of obesity with socioeconomic and lifestyle factors in middle-aged and elderly men: European Male Aging Study (EMAS)

作者：Han T S; Lee D M; Lean M E J; Finn J D; O'Neill T W; Bartfai G; Forti G; Giwercman A; Kula K; Pendleton N; Punab M; Rutter M K; Vanderschueren D; Huhtaniemi I T; Wu F C W; Casanueva F F^*

来源：European Journal of Endocrinology, 2015, 172(1): 59-67.

DOI：10.1530/EJE-14-0739

Background: Social and lifestyle influences on age-related changes in body morphology are complex because lifestyle and physiological response to social stress can affect body fat differently.
Objective: In this study, we examined the associations of socioeconomic status (SES) and lifestyle factors with BMI and waist circumference (WC) in middle-aged and elderly European men.
Design and setting: A cross-sectional study of 3319 men aged 40-79 years recruited from eight European centres. Outcomes: We estimated relative risk ratios (RRRs) of overweight/obesity associated with unfavourable SES and lifestyles.
Results: The prevalence of BMI >= 30 kg/m(2) or WC >= 102 cm rose linearly with age, except in the eighth decade when high BMI, but not high WC, declined. Among men aged 40-59 years, compared with non-smokers or most active men, centre and BMI-adjusted RRRs for having a WC between 94 and 101.9 cm increased by 1.6-fold in current smokers, 2.7-fold in least active men and maximal at 2.8-fold in least active men who smoked. Similar patterns but greater RRRs were observed for men with WC >= 102 cm, notably 8.4-fold greater in least active men who smoked. Compared with men in employment, those who were not in employment had increased risk of having a high WC by 1.4-fold in the 40-65 years group and by 1.3-fold in the 40-75 years group. These relationships were weaker among elderly men.
Conclusion: Unfavourable SES and lifestyles associate with increased risk of obesity, especially in middle-aged men. The combination of inactivity and smoking was the strongest predictor of high WC, providing a focus for health promotion and prevention at an early age.

• 出版日期2015-1