期刊
ENVIRONMENTAL RESEARCH
卷 101, 期 3, 页码 380-386出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.envres.2005.10.004
关键词
infertility; blood lead; herbal medicine; Chinese; Taiwan
This study investigated the relationship between low-level lead exposure and risk of infertility in women. Study participants consisted of 64 cases recruited at a private infertility clinic and 83 control women from the postpartum clinic unit at a medical center in Kaohsiung, Taiwan. With informed consent, venous blood samples were obtained from subjects, during their early follicular phases (the 1st to 5th days of the menstrual cycle), for measuring concentrations of lead and hormones. Information on other potential risk factors associated with infertility, including reproductive history, Chinese herbal Medicine use, dairy product consumption, residential environment, and sociodemographic status, was obtained during an in-person interview. The mean blood lead level (BLL) in infertile women was significantly higher than that in controls (3.55 vs 2.78 mu g/dL, P = 0.007). Compared to women with BLL <= 2.5 mu g/dL, women with BLL > 2.5 mu g/dL were associated with a threefold increased risk for infertility (adjusted odds ratio = 2.94, 95% confidence interval 1.18-7.34), after controlling for age, body mass index, smoking, Chinese herbal Medicine use, and irregular menstruation. Women's BLL was a significant predictor of the serum estradiol concentration also. These findings suggest an important role of very low BLL in the risk of infertility in women. (c) 2005 Elsevier Inc. All rights reserved.
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