PMID: 2092567Jan 1, 1990Paper

Inflammatory bowel disease. An epidemiological and genetic study

Acta Chirurgica Scandinavica. Supplementum
U Monsén

Abstract

The epidemiology of ulcerative colitis (UC) in Stockholm County over a 25-year period, 1955-1979, was investigated. There were 1,274 cases--681 males and 593 females. The proportion of patients with proctitis, left-sided, and total extent of disease remained constant over the study period, as did the time interval between onset of symptoms and definite diagnosis. The incidence increased over the first 20 years followed by a plateau and was 4.3 per 10(5) inhabitants at the end of the study period. The peak incidence in relation to age increased, but remained in the 3rd and 4th decade throughout the study period. In a population-based study of UC the overall prevalence of extracolonic diagnoses was 21%. Seventy percent of patients with extracolonic diagnoses had extensive colitis whereas among the patients without extracolonic diagnoses only 28% had extensive colitis (p less than 0.001). The extracolonic diagnoses were classified into two major groups, activity-related and autoimmune, the former is related to the extent and activity of UC and responds to both medical and surgical treatment, whereas the latter is unaffected by medical and surgical treatment for UC. A total of 364 diagnoses were distributed among 271 UC patients. T...Continue Reading

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