Table 1. Vermont Oxford Network hospitals participating in the very-low-birth-weight or expanded databases by VON NICU type, 2017.

Types	n [%]
Type A: restrictions on ventilation or no surgery	427 [42]
Type B: no ventilation restrictions and surgery* except cardiac requiring bypass	429 [42]
Type C: no ventilation restrictions and surgery* including cardiac requiring bypass	161 [16]

*, omphalocele repair, ventriculoperitoneal shunt, tracheoesophageal fistula/esophageal atresia repair, bowel resection/renanastomosis, meningomyelocele repair, or cardiac catheterization. NICU, neonatal intensive care units.