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Adverse maternal outcomes and birth weight discordance in twin gestation: British Columbia, Canadian data
Shayesteh Jahanfar1, Kenneth Lim2
1Department of Community Health, Central Michigan University, Mount Pleasant, MI, USA.
Objective:
The aim of this study was to determine whether twin pregnancies with birth weight discordance were associated with higher rates of maternal morbidities.
Study Design:
A large retrospective population-based cohort study of twins born in British Columbia, Canada, from 2000 to 2010 was performed. Maternal morbidities and growth discordant were evaluated.
Results:
There were 6,328 twin deliveries during the study period. Pregnancies carrying growth-discordant twins had higher frequencies of hypertension disorders, preterm labor, and cesarean delivery compared with growth-concordant twins. They also stayed longer than 3 days in hospital. Multivariate generalized estimating equation modeling found higher odds of preeclampsia, pregnancy-induced hypertension, preterm delivery, and cesarean delivery in mothers carrying growth-discordant twins compared with those carrying growth-concordant category. The modeling also resulted in higher odds in the length of stay longer than 3 days in mothers carrying growth-discordant twins compared with those carrying growth-concordant twins after adjustment for chorionicity.
Conclusion:
Maternal complications are associated with growth discordance. Screening for birth weight discordance during pregnancy may alert clinicians to predict subclinical maternal conditions.
