Incidence of pulmonary and venous thromboembolism in pregnancies after in vitro fertilisation: cross sectional study.

ABSTRACT:

Objective

To estimate the risk of pulmonary embolism and venous thromboembolism in pregnant women after in vitro fertilisation.

Design

Cross sectional study.

Setting

Sweden.

Participants

23,498 women who had given birth after in vitro fertilisation between 1990 and 2008 and 116,960 individually matched women with natural pregnancies.

Main outcome measures

Risk of pulmonary embolism and venous thromboembolism (identified by linkage to the Swedish national patient register) during the whole pregnancy and by trimester.

Results

Venous thromboembolism occurred in 4.2/1000 women (n=99) after in vitro fertilisation compared with 2.5/1000 (n=291) in women with natural pregnancies (hazard ratio 1.77, 95% confidence interval 1.41 to 2.23). The risk of venou

SUBMITTER: Henriksson P 

PROVIDER: S-EPMC3546085 | biostudies-literature | 2013 Jan

REPOSITORIES: biostudies-literature