Association Between Urban Life-Years and Cardiometabolic Risk The Indian Migration Study

作者：Kinra Sanjay^*; Andersen Elisabeth; Ben Shlomo Yoav; Bowen Liza; Lyngdoh Tanica; Prabhakaran Dorairaj; Reddy Kolli Srinath; Ramakrishnan Lakshmy; Bharathi Ankalmadagu; Vaz Mario; Kurpad Anura; Smith George Davey; Ebrahim Shah

来源：American Journal of Epidemiology, 2011, 174(2): 154-164.

DOI：10.1093/aje/kwr053

• cardiovascular diseases
• diabetes mellitus, type 2
• obesity
• residential mobility
• risk factors
• urbanization

Urban living is associated with an increase in cardiometabolic risks, but the speed at which these risks are accrued over time is unknown. Using a cross-sectional sibling-pair design, the authors surveyed migrant factory workers and their spouses from 4 cities in India together with their rural-dwelling siblings and examined the associations between urban life-years and cardiometabolic risk factors. Data on 4,221 participants (39% women; mean age = 41 years) were available (2005-2007). In regression models, a 2-slope pattern for body fat (with a marked shift at 10 years) was found, whereas a common slope could be accepted for other risk factors. In men, the regression coefficients (per decade of urban life) were 2.5% in the first decade and 0.1% thereafter for body fat; 1.4 mm Hg for systolic blood pressure; and 7% for fasting insulin. Age, gender, marital status, household structure, and occupation did not influence the patterns appreciably; however, stronger gradients for adiposity were noted in migrants from lower socioeconomic positions. The findings suggest that body fat increases rapidly when one first moves to an urban environment, whereas other cardiometabolic risk factors evolve gradually. Public health interventions focused on the control of obesity in newer migrants to urban areas, particularly those from lower socioeconomic positions, may be beneficial.

• 出版日期2011-7-15
• 单位河北医科大学