Table 4.
Rates of maternal outcomes across rural hospital volume categories (percent)
| Rural Hospital volume category | ||||
|---|---|---|---|---|
| R1 50–5,99 |
R2 600–1,699 |
R3 ≥1,700 |
P-value | |
| Chorioamnionitis | 0.7 | 0.8 | 0.7 | 0.561 |
| Endometritis | 0.5 | 0.5 | 0.4 | 0.312 |
| Postpartum hemorrhage | ||||
| Overall | 4.5 | 3.3 | 1.7 | <0.001 |
| Spontaneous vaginal delivery | 4.4 | 3.3 | 1.7 | <0.001 |
| Operative vaginal delivery | 6.2 | 5.2 | 2.6 | <0.001 |
| Cesarean delivery | 4.1 | 2.6 | 2.0 | <0.001 |
| Blood transfusion | 0.7 | 0.6 | 0.6 | 0.442 |
| Severe perineal lacerations (spontaneous vaginal delivery) |
2.1 | 1.6 | 2.3 | <0.001 |
| Wound infection (cesarean delivery) | 0.6 | 0.9 | 0.6 | 0.260 |
| Prolonged length of stay a | 1.8 | 1.6 | 1.2 | <0.001 |
| NTSV cesarean delivery | 24.9 | 26.4 | 24.0 | 0.003 |
a
Prolonged length of stay: >3 days for vaginal deliveries; >5 days for cesarean deliveries
Abbreviations: NTSV, nulliparous, term, singleton, vertex