目的 了解我国多地区妇女乳腺癌知信行现状,探讨三者的影响因素和三者关系.方法 采用多阶段分层随机抽样方式抽样,对中国6市县599名妇女的乳腺癌知信行进行问卷调查,分析其影响因素和三者关系.结果 乳腺癌知识总知晓率19.7％.文化程度和职业是乳腺癌防治知识知晓的影响因素,大专及以上OR值为5.760(3.280～10.114),公职相对于务农OR值为4.111 (95％CI:1.368～ 12.349).乳腺癌防治态度积极率为72.0％,影响因素主要包括年龄[≥55岁OR值为0.226 (0.081～0.627)]、民族[非汉族OR值为0.455 (0.276 ～0.748)]、文化程度[大专及以上OR值为1.897(1.049～3.432)]和职业[公职相对于务农OR值为3.693 (1.295～10.535)].乳腺检查率为65.6％,年龄[≥55岁OR值为0.145 (0.053～0.400)]、职业[公职相对于务农OR值为3.045 (1.359 ～6.827)]、病史[OR值为7.202 (2.395～21.653)]和地域[东部OR值为6.819(4.199～11.073)]均为行为的影响因素.乳腺癌知晓、态度和乳腺检查行为间均具有相关性,但调整混杂后,仅态度对行为有影响[态度积极OR值为3.763 (2.392～5.918)].结论 我国妇女乳腺癌知识知晓程度和防治态度积极性有待提高,乳腺检查率有明显提高.乳腺癌防治知信行有不同的影响因素,并且三者互相关联.“,”Objective To describe the status and influencing factors of knowledge,attitude and behavior of breast cancer in China.To investigate the relationship among knowledge,attitude and behavior.Methods A total of 599 women were recruited through multistage stratified random sampling method and surveyed face-to-face using a self-designed questionnaire.The status,influencing factors and the relationship between the knowledge,attitude and practice of breast cancer were analyzed.Results The rate of adequate knowledge of breast cancer was 19.7％.Educational background and occupation are the influencing factors of breast cancer knowledge.The odds ratio of college degree or above was 5.760 (3.280-10.114),the OR of public office was 4.111 (1.368-12.349).72％ women have positive attitudes towards screening and treatment of breast cancer.Age (the odds ratio of the age ≥55 was 0.226 (0.081-0.627),nationality (the odds ratio of Non-Han nationality was 0.455 (0.276-0.748),education (the odds ratio of college degree or above was 1.897 (1.049-3.432) and occupation (the odds ratio of public office was 3.693 (1.295-10.535) are the factors influencing breast cancer attitude.The breast examination rate was 65.6％.Among them,the age (the odds ratio of the age ≥55 was 0.145 (0.053-0.400),occupation (the odds ratio of public office was 3.045 (1.359-6.827),medical history (the OR was 7.202 (2.395-21.653) and regions (the odds ratio of western was 6.819 (4.199-1 1.073) were the influencing factors of the breast examination behavior.The knowledge,attitude and behavior of breast cancer were associated with each other.After adjustment of confounding,only positive attitudes could affect the behavior [OR was 3.763 (2.392-5.918)].Conclusion The attitude and knowledge of breast cancer should be further improved.The rate of breast examination has been improved obviously in China.There are different influencing factors of breast cancer knowledge,belief and practice,and the three are related to each other.