论文部分内容阅读
溃疡性结肠炎(UC)的发病率有显著的地区差异。此研究调查明尼苏达Olmsted县人群中UC的发病率、患病率、生存率的总趋势,调查UC病人存活情况及与死亡有关的危险因素。 病人和方法:Olmsted县1940～1993年UC患者和1991年1月1日存活的所有UC患者纳入研究,前者作为发病率计算的依据,后者作为患病率计算依据。UC的诊断标准为间隔6个月以上的两次检查见结肠粘膜质脆、弥漫性颗粒状变且内镜或钡餐示病变连续。若只有一项检查阳性或两次检查间隔时间少于6个月,则定为疑诊。
There are significant regional differences in the incidence of ulcerative colitis (UC). This study examined the general trend in UC incidence, prevalence and survival in Olmsted County, Minnesota, and investigated survival and mortality-related risk factors for UC. PATIENTS AND METHODS: UC patients from 1940 to 1993 in Olmsted County and all UC patients who survived on January 1, 1991 were included in the study, the former being the basis for morbidity calculations and the latter being based on prevalence. UC diagnostic criteria for more than 6 months interval of two checks see the colon mucosa crisp, diffuse granular change and endoscopic or barium meal lesions showed continuous. If there is only one test positive or two inspections less than 6 months interval, then suspect.