Among the stays that did not result in a delivery, 10% or more involved early or threatened labor, infections, hypertension and eclampsia.
Among the stays that did result in a delivery, 5% to 10% involved umbilical cord complications, first and second degree perineal lacerations, previous C-section and abnormal fetal heart rate or rhythm.
Older pregnant women at least 35 accounted for 15% of maternal stays with complicating conditions, but only 1% of stays without complicating conditions.
Of those delivery stays that involved complications, 39.7% were for women enrolled in Medicaid and 53.2% had private insurance.
Discharges against medical advice were more common among non-delivery stays with complicating conditions (1.9%) compared to all delivery stays.
The link to the AHRQ report is here.