Abstract: Background　The prevention and control of digestive system cancer is under tough conditions，but there are differences in prevention awareness and behaviors in the population at high risk of digestive system cancer. There is a lack of reference for physicians and nurses to evaluate the prevention ability among them. Therefore，it is of great significance to establish the regional norm of the proactive cancer prevention behavior scale，which may greatly promote cancer prevention. Objective　To establish the norms for the proactive prevention behavior scale in the population at high risk of digestive system cancer（DSC-PPBS），to provide references for the evaluation of high-risk population of digestive system cancer. Methods　From May 2019 to January 2020，DSC-PPBS was used to investigate high-risk population of digestive system cancer from 6 grade A tertiary hospitals，3 grade A secondary hospitals，and 3 community health centers in Heilongjiang. The characteristics of their DSC-PPBS scores were used to develop the mean，percentile and threshold norms for this specific population. Results　Of the 1 400 cases surveyed，1 236 returned responsive questionnaires with a response rate of 88.29%. The mean norms of DSC-PPBS were established according to gender and age groups（40-45，46-65，≥66 years）. The percentile norms of DSC-PPBS from the 5th percentile to 95th percentile were established with 5% as interval. The threshold norms were based on the four critical points（-s、-0.5s、+0.5s、+s），the cancer prevention status of the subjects was divided into five categories：poor，relatively poor，general，good，excellent，and the four demarcation standards were in closed with the 15th，30th，70th and 85th of the percentiles norm. Conclusion　The mean norm，percentile norm，and threshold norm of DSC-PPBS in the population at high risk of digestive system cancer in Heilongjiang are well-represented，which lay a foundation for further promotion of the scale. It can be used as a reference for clinical and community physicians and nurses to evaluate the intervention of prevention behaviors in the population at high risk of digestive system cancer.

Key words: Digestive system cancer, High-risk population, Cancer prevention, Proactive behavior, Scale, Norm

摘要： 背景　消化系统癌症的防控形势严峻，但其高危人群的预防意识、预防行为水平等参差不齐。医护人员对消化系统癌症高危人群预防能力的评估缺乏参考标准，构建消化系统癌症高危人群预防主动行为量表（DSC-PPBS）地区常模尤为重要。目的　建立黑龙江省DSC-PPBS常模，为评估消化系统癌症高危人群预防行为水平提供参考。方法　于2019年5月—2020年1月，选取黑龙江省6家三级甲等医院、3家二级甲等医院、3家社区卫生服务中心的消化系统癌症高危人群为研究对象，以DSC-PPBS为调查工具，在分析消化系统癌症高危人群DSC-PPBS评分特点的基础上建立均数常模、百分位常模和划界常模。结果　共发放调查问卷1 400份，回收有效问卷1 236份，问卷有效回收率为88.29%。按性别和年龄组（40~45、46~65、≥66岁）建立消化系统癌症高危人群DSC-PPBS的均数常模。百分位常模以5%为间隔，建立5分位至95分位消化系统癌症高危人群DSC-PPBS的百分位常模。划界常模以4个界点（-s、-0.5s、+0.5s、+s）将消化系统癌症高危人群的预防行为划分为5类：预防行为差、预防行为较差、预防行为一般、预防行为良好、预防行为优秀，划界值接近百分位常模的第15、30、70、85百分位。结论　本课题组近期构建的黑龙江省消化系统癌症高危人群DSC-PPBS常模具有良好的代表性，为该量表进一步推广奠定了基础，可作为临床及社区医护人员对消化系统癌症高危人群预防行为的干预提供效果评价的参考依据。

关键词: 消化系统癌症, 高危人群, 癌症预防, 主动行为, 量表, 常模