【摘要】 目的 :研究1981年～2000年天津市结肠癌发病年龄分布及其变化趋势 ,为确定结肠癌高发人群 ,探讨结肠癌病因提供线索。方法 :利用天津市肿瘤登记处的肿瘤发病资料 ,分性别、年份计算发病中位年龄 ,并进行直线回归分析。结果 :20年结肠癌发病中位年龄为64岁 (男性 :64岁 ,女性65岁 ) ,以70岁年龄发病人数最多 ,发病年龄在54岁～72岁之间者占发病总数的50%。1981年～2000年结肠癌发病中位年龄呈上升趋势 ,20年共上升6.0岁。结论 :天津市1981年～2000年结肠癌发病年龄变化趋势表明 ,应进一步加强对高年龄组人群结肠癌的预防工作更多还原

【Abstract】 Objective:To investigate the age distribution of colon cancer incidence in Tianjin from1981to2000,to provide insights into the likely directions for colon cancer research related to high-risk group and prevention.Methods:Median age at diagnosis was calculated by sex and year of diagnosis,linear regression model was fitted for trend analysis.Results:The median age at diagnosis over these20years is64(male:64,female:65),the age70represents the largest concentration of colon cancer cases than any other ages.Age group54～72comprises half of the total cases.An ascending trend was observed for the median age of colon cancer inˉcidence from1981to2000.Conclusion:The trend for age distribution of colon cancer during1981-2000in Tianjin made it imperative to reinforce the prevention of colon cancer in the elˉderly.更多还原