TABLE 3

Outcome Variation as Crude Proportions of US-VON and SNN

OutcomeUnitProportions of All Infants, %RR (95% CI)
CrudeWith Patient-Level AdjustmentWith Prenatal Care AdjustmentWith Unit Level Adjustment (Final OR)
Death or major morbidityUS-VON46.90.72 (0.68–0.77)0.7 (0.64–0.76)0.7 (0.64–0.76)0.56 (0.52–0.63)
SNN33.7
Any mortalityUS-VON11.01.12 (1–1.25)1.3 (1.12–1.51)1.31 (1.13–1.52)1.28 (1.09–1.50)
SNN12.3
Any major morbidity (survivors only)US-VON39.10.58 (0.53–0.64)0.63 (0.56–0.7)0.63 (0.56–0.7)0.49 (0.44–0.55)
SNN22.8
  • Adjusted ORs of outcome in SNN versus US-VON starting with crude (unadjusted) data and incrementally adding patient level adjustment, prenatal care, and unit level adjustment (final OR). OR, odds ratio.