The incidence rate has been arrived at by studying about 500 people over an eight-year period Incidence reflects the rate at which healthy people in the population acquire the disease The overall incidence of diabetes has been 20.2 per 1,000 person years of follow-up While the total number of diabetics in the country, which is known as prevalence, is estimated to be 35-40 million, the number of people who become diabetic every year was not known. Not anymore. The "first incidence study on diabetes and pre-diabetes in India' has been published in the March 2008 online edition of the Journal of Association of Physicians of India (JAPI). Unlike the prevalence study undertaken by many researchers, studying the incidence