Perinatal outcomes of unplanned out-of-hospital deliveries: a case-control study.

PURPOSE: To compare the pregnancy and perinatal outcomes of unplanned home or car births vs. in-hospital deliveries.

METHODS: A retrospective, case-control study of women who underwent unplanned out-of-hospital deliveries vs. in-hospital deliveries from 2004 through 2014. Matching was based on gestational age and parity in a ratio of 2:1.

RESULTS: There were no significant differences between the groups regarding demographic criteria, prenatal care and delivery complications. Women who delivered out of hospital (n = 90) had significantly fewer cesarean deliveries (1.1 vs. 10.6%; p = 0.05) and operative deliveries (2.2 vs. 13.3%; p = 0.004) in their obstetrical history than did the control group (n = 180). Significantly more newborns delivered out of the hospital had polycythemia (25.6 vs. 1.7%; p < 0.0001) and hypothermia (3.3 vs. 0%; p = 0.036) compared to the control group.

CONCLUSION: Women with unplanned out-of-hospital deliveries tend to have fewer complications in their previous deliveries. Higher rates of polycythemia and hypothermia require attention for neonates born out of the hospital.