期刊
AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY
卷 198, 期 2, 页码 -出版社
MOSBY-ELSEVIER
DOI: 10.1016/j.ajog.2007.08.041
关键词
case-control study; pregnancy; risk factors; venous thromboembolism
OBJECTIVE: This study was undertaken to estimate the incidence of venous thromboembolism in pregnancy and puerperium and to identify risk factors for pregnancy-related venous thromboembolism. STUDY DESIGN: A register-based case-control study with 613,232 pregnancies from 1990-2003 in 11 Norwegian counties. Medical records for eligible cases were revisited and relevant medical data were transferred to a specific case-report form. The diagnosis of venous thromboembolism was based on strict criteria. Data were analyzed by chi(2) test and forward stepwise logistic regression. RESULTS: In total, 615 cases were detected. The incidence of venous thromboembolism was 1 per 1000 pregnancies. The ante-and postnatal incidences were quite similar. Antenatal risk factors were assisted reproduction, gestational diabetes, age older than 35 years, multiple pregnancies, and primi-parity. Postnatal risk factors were cesarean section, preeclampsia, assisted reproduction, abruptio placenta, and placenta previa. CONCLUSION: We found different ante- and postnatal risk patterns. Assisted reproduction and gestational diabetes were significant antenatal risk factors; whereas cesarean section and preeclampsia were strong postnatal risk factors.
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