作者
Torgny Karlsson, Therese Johansson, Julia Höglund, Weronica E Ek, Åsa Johansson
发表日期
2021/2/15
期刊
Cancer research
卷号
81
期号
4
页码范围
1153-1162
出版商
American Association for Cancer Research
简介
Oral contraceptive use has been suggested to influence the risk of breast, ovarian, and endometrial cancer. The purpose of this study is to clarify the time-dependent effects between long-term oral contraceptive use and cancer risk. We performed an observational study in 256,661 women from UK Biobank, born between 1939 and 1970. Information on cancer diagnoses were collected from self-reported data and from national registers until March 2019. Cumulative risk of cancer over the timespan of the study, as measured by the OR, and instantaneous risk, as measured by the HR, were assessed using Logistic and Cox regression analyses, respectively. The odds were lower among ever users, compared with never users, for ovarian cancer [OR = 0.72; 95% confidence interval (CI), 0.65–0.81] and endometrial cancer (OR = 0.68; 95% CI, 0.62–0.75), an association that was stronger with longer use …
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T Karlsson, T Johansson, J Höglund, WE Ek… - Cancer research, 2021