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Ulcerative colitis in Japanese infants and children:—an epidemiological survey—

For getting the information on infants and children with ulcerative colitis observed from 1976 through 1980, questionnairs were sent to 298 institutions throughout Japan and collected from 157 institutions on 96 cases. There was no sexual preponderence in the patients. The youngest was two month old, and the majority developed the symptoms after nine year of age. Entire colon was involved in 53.3% and only the left-side colon was involved in 22.8% of the cases. Twenty three percent of the patients showed bloody stools. Hepatic dysfunction was observed in 12.5% as a complication. Nineteen percent of the patients showed marked growth retardation. The feeding schedule of the patients during infancy was not different from that of the normal Japanese infants. A short term prognosis was good and no death was reported during the observation period.