Abstract: Objective To explore retirees changes of lifestyles, dietary habits, as well as anthropology indexes before and after retirement. Methods With reference to data of China Health and Nutrition Survey(CHNS)from 1997 to 2011, data of 572 participants(304 female and 268 male)were analyzed. The participants were >40 years old when they were first investigated, had complete professional information and retired during the period of study. Statistical descriptions and analyses were made to detect the differences of lifestyles, dietary habits and obesity indexes before and after their retirement. Generalized estimating equations(GEEs)were adopted to analyze the influencing factors of body mass index(BMI)and waist circumference. Results (1) In lifestyles, after retirement, the total amount of exercise decreased(P<0.05), and time to do housework was extended(P<0.05)for both physically demanding and sedentary occupations. In dietary habits, for all men and women, energy intake, carbohydrate intake and the prevalence of drinking decreased. (2) The BMI was significantly increased after retirement for men with physically demanding occupations(P<0.05), but the BMI for men with sedentary job before retirement remained unchanged(P=0.987). In obesity indexes, prevalence of central obesity was remarkably higher(P<0.05)in female after retirement. (3) The results of GEEs illustrated that smoking was a protective factor for BMI in men. Smoking and drinking were factors which could influence waist circumference in men. For women, high educational level was a protective factor for BMI incensement. Furthermore, age, rural area and educational level were associated with waist circumference in women. Conclusion The changes of lifestyles and anthropology indexes for retirees are different in different populations. Targeted health education is essential for further health intervention.

Key words: Retirement, Lifestyles, Obesity, Diet