Abstract
An epidemiologic survey of juvenile onset insulin dependent diabetes mellitus (IDDM) was performed by analyzing application forms for the medical care system in Kitakyusyu city for the 1989-1993 period. A total of 73 patients under 18 years of age were identified, 40 (boys 19, girls 21) of whom were classified as having IDDM. The annual incidence during the five year period was 1.98 (boys 2.29, girls 1.66) per 100, 000 with a peak incidence at ages 10-14 years. There was a seasonal variation in symptom onset, with higher rates during the winter and lower rates during the summer. The prevalence was 1.19 (boys 1.13, girls 1.25) per 10, 000 and increased with age.
