Author(s): Lindqvist P, Dahlbck B, Marl K, Lindqvist P, Dahlbck B, Marl K
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Abstract OBJECTIVE: To determine the incidence of pregnancy-related venous thromboembolic events and the relationship to selected risk factors such as maternal age, parity, smoking, preeclampsia, or cesarean delivery. METHODS: All Swedish women reported as having pregnancy-related venous thromboembolic events during 1990-1993 (608 of 479,422 deliveries) were compared with all thrombosis-free Swedish pregnant women during 1993 (114,940). RESULTS: The incidence of pregnancy-related venous thromboembolic events was 13 per 10,000 deliveries. Cesarean delivery was associated with a fivefold increased risk of venous thromboembolic events. Advanced age was not a significant risk factor itself, but was associated with an age-related increase in frequency of cesareans. Women with preeclampsia were at a threefold higher risk postpartum, but at no increased risk before delivery. There was a tobacco consumption-dependent increase in the risk of thrombosis among smokers. CONCLUSION: The incidence of pregnancy-related thrombosis was 13 per 10,000 and provided new insights to important risk factors such as age, cesarean delivery, smoking, and preeclampsia.
This article was published in Obstet Gynecol
and referenced in Journal of Blood Disorders & Transfusion