Prevalence and risk factors of peripheral vascular disease in a selected South Indian population: the Chennai Urban Population Study

Prevalence and risk factors of peripheral vascular disease in a selected South Indian population: the Chennai Urban Population Study. G Premalatha , S Shanthirani , R Deepa , J Markovitz and V Mohan Madras Diabetes Research Foundation, Gopalapuram, Chennai, India. Abstract OBJECTIVE: The epidemiology of peripheral vascular disease has rarely been studied in non-European populations. The purpose of this study was to determine the prevalence and risk factors of peripheral vascular disease (PVD) among South Indians. RESEARCH DESIGN AND METHODS: The Chennai Urban Population Study is an epidemiological study involving 2 residential areas in Chennai in South India. Of the 1,399 eligible subjects (> or =20 years of age), 1,262 (90.2%) participated in the study. All of the study subjects underwent an oral glucose tolerance test and were categorized as having normal glucose tolerance (NGT), impaired glucose tolerance (IGT), or diabetes. Peripheral Doppler studies were performed on 50% of the study subjects, and PVD was defined as an ankle-brachial index (ABI) 50 years (odds ratio [OR] 6.3, 95% CI 2.1-20.6, P