Ekbom A, Helmick C, Zack M, Adami H O
Department of Surgery, University hospital, Uppsala, Sweden.
Dig Dis Sci. 1991 Jan;36(1):97-102. doi: 10.1007/BF01300095.
Ulcerative proctitis has by tradition been regarded as a subgroup of ulcerative colitis. Population-based epidemiological studies of ulcerative proctitis are, however, virtually nonexistent. In an epidemiological study of inflammatory bowel disease in the Uppsala Health Care Region, 1065 cases of ulcerative proctitis were diagnosed from 1965 through 1983. Males predominated, with the male to female ratio 1.4:1. Annual incidence rates were higher in urban than in rural areas. The annual incidence rates increased threefold from 2.8 per 10(5) to 6.6 per 10(5) during the period, affecting all age groups over 14 years of age, in both urban and rural areas and in both sexes. Differences in temporal trends and certain other epidemiological characteristics between ulcerative proctitis and extensive ulcerative colitis suggest that ulcerative proctitis is a specific disease whose etiology differs from that of extensive ulcerative colitis.
传统上，溃疡性直肠炎被视为溃疡性结肠炎的一个亚组。然而，基于人群的溃疡性直肠炎流行病学研究实际上并不存在。在乌普萨拉医疗保健地区进行的一项炎症性肠病流行病学研究中，1965年至1983年期间共诊断出1065例溃疡性直肠炎病例。男性居多，男女比例为1.4:1。城市地区的年发病率高于农村地区。在此期间，年发病率从每10万人2.8例增至每10万人6.6例，增长了两倍，影响了14岁以上的所有年龄组，包括城市和农村地区的男性和女性。溃疡性直肠炎与广泛性溃疡性结肠炎在时间趋势和某些其他流行病学特征上的差异表明，溃疡性直肠炎是一种特定的疾病，其病因与广泛性溃疡性结肠炎不同。
