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Postpartum sterilization in cesarean section and non-cesarean section deliveries: United States, 1970-75.

National Hospital Discharge Survey data indicate that the overall postpartum sterilization rate per 100 deliveries increased by 75 per cent from 4.0 in 1970 to 7.0 in 1975; by type of delivery, rates rose from 18.0 per 100 cesarean section deliveries and 3.2 for all other deliveries in 1970 to 19.0 and 5.6 respectively in 1975. The South had the highest postpartum sterilization rates overall. Deliveries to older mothers and cesarean section deliveries in hospitals with less than 100 beds were more often characterized by higher sterilization rates.