Physical activity and breast cancer risk: a case-control study
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摘要: 目的 探讨体力活动与乳腺癌发病的关系。方法 采用以医院为基础的病例对照研究,调查某大学2所附属医院2012年4月~2014年12月间确诊的25~70岁549例乳腺癌患者和同期同医院就诊的549例非肿瘤患者的体力活动情况和相关危险因素。采用非条件Logistic回归模型分析体力活动与乳腺癌发病的关系。结果 校正各种混杂因素后,非职业性体力活动与乳腺癌发病风险降低有关(OR=0.69,95% CI:0.48~1.00);与不参加体育活动者相比,参加体育活动对乳腺癌发病有保护作用(OR=0.61,95% CI:0.43~0.87);与久坐不动的职业相比,轻度职业活动对乳腺癌发病有保护作用(OR=0.67,95% CI:0.47~0.97),而家务活动与乳腺癌发病风险无关。不同雌激素受体(estrogen receptor,ER)和孕激素受体(progesterone receptor,PR)状态的亚组分析中,非职业性体力活动与ER+/PR+乳腺癌的发病风险降低有关。结论 非职业性体力活动、体育活动和轻度职业活动对女性乳腺癌有保护作用。Abstract: Objective To assess the association between physical activity and risk of breast cancer. Methods A hospital-based case-control study was conducted in two affiliated hospitals of a university between April 2012 and December 2014. Face to face interviews were completed among 549 breast cancer cases and 549 controls. Physical activity and potential risk factors of breast cancer were collected by using a standard questionnaire. Multivariate unconditional Logistic regression model was used to estimate the association between physical activity and breast cancer risk. Results A lower risk for breast cancer was observed for highest levels of non-occupational physical activity (OR=0.69,95% CI:0.48-1.00), for recreational activity (OR=0.61, 95% CI:0.43-0.87), as well as for standing occupational activity (OR=0.67, 95% CI:0.47-0.97), while household activity showed null result. Non-occupational physical activity showed reverse association with ER+/PR+ breast cancer risk. Conclusions Non-occupational physical activity, recreational activity and standing occupational activity are inversely associated with breast cancer risk.
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Key words:
- Breast neoplasms /
- Case-control studies /
- Epidemiologic studies
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