Association between contemporary hormonal contraception and ovarian cancer in women of reproductive age in Denmark: prospective, nationwide cohort study.

ABSTRACT:

Objectives

To investigate the association between contemporary combined hormonal contraceptives (including progestogen types in combined preparations and all progestogen-only products) and overall and specific types of ovarian cancer.

Design

Prospective, nationwide cohort study.

Setting

Denmark, 1995-2014.

Participants

All women aged 15-49 years during 1995-2014 were eligible. Women were excluded if they immigrated after 1995, had cancer (except non-melanoma skin cancer), had venous thrombosis, or were treated for infertility before entry (final study population included 1 879 227 women). Women were categorised as never users (no record of being dispensed hormonal contraception), current or recent users (≤1 year after stopping use), or former users (>1 year aft

SUBMITTER: Iversen L 

PROVIDER: S-EPMC6283376 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature