Change trend in diabetes prevalence and related factors among 60-79 years old residents in Chaoyang district of Beijing,2008-2014

Objective To analyze changes in diabetes prevalence and its risk factors among residents aged 60-79 years in Chaoyang district of Beijing from 2008 through 2014.Methods The elderly residents were selected with multistage stratified sampling in 2008 (n=750),2011(n=1 510),and 2014(n=532) and investigated with a same questionnaire,physical examination,and laboratory test.Results The annual diabetes prevalence were 18.9%,19.1%,and 21.1%,and the age-adjusted prevalence were 10.9%,10.2%,and 10.8% for the year of 2008,2011,and 2014 and the prevalence increased with the age(χ_trend²=9.351,P=0.025).Significant yearly differences were observed in the prevalence of diabetes among the residents with different living area(urban or rural) and statuses of central obesity,smoking,alcohol drinking,and blood pressure(all P <0.01).Multivariate logistic regression analysis showed that hypertension and central obesity were risk factors of diabetes in 2008;male gender,hypertension and dyslipidemia were risk factors in 2011;alcohol drinking and effective exercise were protective factor;while elder age and dyslipidemia were risk factors in 2014.Conclusion Diabetes prevalence increased among 60-79 years old residents in Chaoyang district of Beijing between 2008 and 2014 and gender,age,hypertension,central obesity,dyslipidemia,alcohol consumption,and effective exercise were the main influencing factors of the disease in the elderly.