Abstract
Increase in the incidence of Type 1 diabetes (T1D) over last several decades has been reported worldwide. There is a dearth of data on incidence/prevalence of T1D in children from India. We studied the trends in incidence of T1D amongst children attending a tertiary care pediatric hospital of North India over last 12 years and the changes in incidence, patterns of presentation and disease outcomes during this period by retrospective analysis of patient records and hospital census data. The study population comprised of 647 children with onset of T1D below 16 years who attended the hospital from April, 2001 to March, 2013. There was a consistent increase in the total number of T1D patients every year. The increase in the proportion of younger ( 15 years) patients (mean yearly percentage 60.3 versus 25 %). The proportion of patients presenting during winter months was almost double than the average of any of the 3 seasons (39 versus 20.3 %). The overall mortality was 1.7 %. In conclusion, the number of patients with T1D has shown an increase although the severity of presentation has declined. Marked seasonality in presentation indicates some unidentified environmental factors triggering the onset of disease in our patient population.
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