Early Postpartum Venous Thromboembolism: Risk Factors and Predictive Index

Abstract

The aim of our study was to quantify risk factors for venous thromboembolism (VTE) during the puerperal period. The case–control study was conducted in Women’s Hospital, Zhejiang University, China, from January 2006 to December 2016; cases of hospitalized VTE within 1 week after delivery were identified according to International Classification of Diseases, Ninth Revision, Clinical Modification codes. Control postpartum women without VTE were randomly selected, matched on birth day, age, delivery mode, and number of fetus with 4:1 ratio. Clinical risk factors for postpartum VTE and coagulation parameters were analyzed. We found independent variables that were significantly related to postpartum VTE (all P