Birth control pills and risk of hypothyroidism: a cross-sectional study of the National Health and Nutrition Examination Survey, 2007-2012.

ABSTRACT:

Objective

The association between use of birth control pills and thyroid function in women has not ever been well studied, but potential risk has been implicated by small sample-sized studies. We aimed to determine this association using a large epidemiological survey.

Design

Cross-sectional study.

Setting

National Health and Nutrition Examination Survey conducted in the USA from 2007 to 2012.

Participants

Female respondents aged 18+ who had data on history of taking birth control pills and thyroid function were included. History of taking birth control pills was based on responses on the reproductive health questionnaire. Participants not on antithyroid medication with thyroid-stimulating hormone (TSH) >5.6 mIU/L and those on thyroid hormone replacement regard

SUBMITTER: Qiu Y 

PROVIDER: S-EPMC8230965 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature