1. Risk of breast cancer and adipose tissue concentrations of polychlorinated biphenyls and organochlorine pesticides: a hospital-based case-control study in Chinese women
- Author
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Anna Li, Wenlong Huang, Meirong He, Kusheng Wu, Jiefeng Xiao, Yuanni Huang, and Yuanfang He
- Subjects
medicine.medical_specialty ,China ,Health, Toxicology and Mutagenesis ,Dichlorodiphenyl Dichloroethylene ,Breastfeeding ,Physiology ,Adipose tissue ,Breast Neoplasms ,010501 environmental sciences ,Logistic regression ,01 natural sciences ,DDT ,chemistry.chemical_compound ,fluids and secretions ,Breast cancer ,Epidemiology ,medicine ,Environmental Chemistry ,Humans ,Pesticides ,reproductive and urinary physiology ,0105 earth and related environmental sciences ,business.industry ,organic chemicals ,Case-control study ,food and beverages ,General Medicine ,Odds ratio ,medicine.disease ,Pollution ,Polychlorinated Biphenyls ,Logistic Models ,Dichlorodiphenyldichloroethylene ,chemistry ,Adipose Tissue ,Case-Control Studies ,embryonic structures ,Female ,business - Abstract
Polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT), and dichlorodiphenyldichloroethylene (DDE) are suspected to be associated with breast cancer risk, but the results are controversial. This study was performed to evaluate the associations between adipose tissue PCB, DDT, and DDE concentrations and breast cancer risk. Two hundred and nine pathologically diagnosed breast cancer cases and 165 controls were recruited from three local hospitals in Shantou city, China, from 2014 to 2016. Concentrations of 7 PCB congeners, p,p′-DDT, and p,p′-DDE were measured in adipose tissues obtained from the breast for cases and the breast/abdomen for controls during surgery. Clinicopathologic information and demographic characteristics were collected from medical records. PCBs, p,p′-DDT, and p,p′-DDE concentrations in adipose tissues were compared between cases and controls. Multivariate logistic regression model was used to analyze the risk of breast cancer by PCBs, p,p′-DDT, and p,p′-DDE concentrations in adipose tissues. Breast cancer cases have relatively higher menarche age, higher breastfeeding and postmenopausal proportion than controls. Levels of PCB-52, PCB-101, PCB-118, PCB-138, PCB-153, PCB-180, total PCBs (∑PCBs), and p,p′-DDE were relatively higher in breast cancer cases than controls. Breast cancer risk was increased in the third tertile of PCB-101, PCB-118, PCB-138, PCB-153, PCB-180, ∑PCBs, and p,p′-DDE as compared with the first tertile in both adjusted and unadjusted logistic regression models (odds ratios [ORs] were from 1.58 to 7.88); and increased linearly across categories of PCB-118 and p,p′-DDE in unadjusted model, and PCB-118 and PCB-153 in the adjusted model with trend (all P
- Published
- 2018