中文摘要：

目的 了解天津市区1981-2004年前列腺癌流行趋势和特点,为我国的前列腺癌防治工作提供参考依据.方法 全部前列腺癌发病资料来源于天津市肿瘤登记报告中心,应用SAS V9系统计算天津市1981-2004年的前列腺癌粗发病率、标化（1985年世界标准人口）发病率和年龄别发病率,应用Joinpoint 3.0软件对前列腺癌发病的时间趋势进行接点分析.结果 在1981-2004年间,天津市区累计报告前列腺癌新发病例1060例,2004年前列腺癌的标化发病率为2.84/10万,前列腺癌的标化发病率分3个阶段上升,年平均增长率4.02%;前列腺癌患者的年龄结构趋向于老龄化;65～74岁年龄组发病率年均上升4.63%,75岁及以上组发病率年均上升5.18%,高年龄组发病率增速较快.结论 天津市前列腺癌发病率虽然较低,但增长速度快,应加强前列腺癌的防治研究.

英文摘要：

Objective To analyze the trend of the incidence of prostate cancer in urban Tianjin area between 1981 and 2004 so as to provide scientific rationales for the prevention and control of prostate cancer.Methods The data of prostate cancer cases were provided by the Tianjin Cancer Registry. The SAS system V9 was used to calculate the crude incidence, age-adjusted incidence and age specific incidence of prostate cancer in Tianjin between 1981 and 2004. And the Joinpoint 3.0 software was used to analyze secular trends. Results Between 1981 and 2004, a total of 1060 prostate cancer cases were diagnosed in Tianjin.And the age-adjusted incidence rate was 2.84/100 000 in 2004. The incidence of prostate cancer showed 3 incremental stages during the 24-year period at an annual average of 4.02%. An aging trend was observed for prostate cancer patients. The elder patients had a faster increment in incidence. Specifically, it increased annually at 4.63% for age group 65 - 74 year versus 5.18% for age group 75 years or more. Conclusion Despite a low incidence of prostate cancer in Tianjin, it is increasing at a fast rate. The prevention and control of prostate cancer should be strengthened.