In a population-based cohort study initiated in 2007, a sample of 1223 adults > 25 years of age from two villages of Pondicherry were selected using cluster random sampling.
Data on risk factor exposure were collected using a structured questionnaire, anthropometric tests and fasting blood glucose assessment. During house visits, 1223 of 1403 invited subjects participated. Of these, 71 (5.8%) were found to have diabetes.