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Title   한국인에서 수유의 여성 유암 보호효과에 관한 환자 - 대조군 연구 ( A Case - Control Study on Protective Effect of Breast Feeding Against Breast cancer among Postmenopausal Women in Korea )
Publicationinfo   1993 Jan; 025(02): 202-213.
Key_word   Breast neoplasms, Breast feeding, Lactation, Risk factors
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Abstract   A case-control study was conducted to investigate protective effect of breast feeding against breast cancer in Korea. Included in the analysis were 162 women, identified as having a histologically-confirmed diagnosis of breast cancer in a hospitaL The 150 hospital-contrals were women free of any malignant neoplasms nor other systematic diseases. Randomly se- lected neighborhoods and friends of the patients(n= 149) were also included as community controls in the analysis. Information on risk factors of breast cancer was collected by self- administered questionnaire. Statistical adjustment for potential confounders as well as a likeli- hood ratio test for trend was done by multivariate linear logistic regression modeL Among postmenopausal-parous women, the risk of breast cancer was decreasing with increasing number of breastfed children(X=4.2(1) for hospital controls; X .=1.2(l) for community controls). The trend of decreasing risk with increasing total months of breast feeding was also ob- served. Particularly noteworthy was a significant decreasing trend of breast cancer risk with months of breast feeding of the first child, regardless of parity and age at first full term pregnancy. This study confirmed an independent protective effect of breast feeding against breast cancer among postmenopausal women in Korea. These findings suggest that evasion of breast feeding may play a role in recent increase of breast cancer in Korea.
저 자   유근영(Byung Joo Park),최국진(Kuk Jin Choe),노동영(Dong Young Noh)