THE RELATION BETWEEN REPRODUCTIVE FACTORS AND BREAST TUMOR BASED ON CLINICAL BREAST EXAMINATION, NON COMMUNICABLE DISEASES RESEARCH 2016

Breast cancer is the most frequently diagnosed cancer in females worldwide. It was 18% of all cancer in 2012 and was in the fourth rank of mortality caused by cancer. Factors which is still speculated as risk factors of breast cancer are reproductive factors: never pregnant, only one pregnancy, and no breastfeeding. This secondary analysis of Non Communicable Diseases Research 2016 data aims to assess the relationship between reproductive factors with breast tumor among 43,948 Indonesian women of aged 25-64 years using logistic regression analysis with 5% significance and 95% confidence interval. The results showed breast tumor was higher in women aged 35 years and over compared with under 35 years, menarche at age 7-12 years compared with 13-25 years, first childbirth at 31-35 years and 36-47 years compared with under 30 years, having less than 3 children compared with >= 3 children and no child or only 1 child breastfed compared with >= 2 children breastfed. The analysis concluded that breast tumor was related to number of child breastfed, frequency of childbirth, and late first childbirth.