Intimate partner violence and birth outcomes: a systematic review

There is a lack of comprehensive information on the relationship between domestic physical and emotional violence and pregnancy outcomes. Accordingly, we undertook this systematic review of the literature to examine the evidence on the association between physical and emotional abuse and pregnancy outcomes.

A comprehensive literature search was carried out using pertinent key words that would retrieve any research article pertaining to the topic. This was supplemented by cross-referencing of the articles. A total of 296 articles were found; case reports and articles that failed to satisfy the study inclusion criteria were removed and 30 articles were included in the review.

Overall, adverse pregnancy outcomes, including low birth weight, maternal mortality and infant mortality are significantly more likely among abused than nonabused mothers. Abused pregnant mothers present more often than nonabused mothers with kidney infections, gain less weight during pregnancy, and are more likely to undergo operative delivery. Fetal morbidity, such as low birth weight, preterm delivery, and small size for gestational age are more frequent among abused than nonabused gravidas. The risk for maternal mortality is three times as high for abused mothers. Black abused mothers are 3-4 times as likely to die as their white counterparts. Unmarried victims are also three times as likely to die as married abused mothers. Intimate partner violence is also responsible for increased fetal deaths in affected pregnancies (about 16.0 per 1000).

Intimate partner violence is often a life-threatening event to both the mother and the fetus. This, in addition to the heightened level of feto-maternal morbidity and mortality, represents clear-cut justification for routine systematic screening for the presence of abuse during pregnancy.