Variable | Association with mortality | Association with mortality or severe IVH, cystic PVL, surgical NEC or GI perforation | ||
Univariate OR (95% CI) | Adjusted OR (95% CI) | Univariate OR | Adjusted OR (95% CI) | |
Hypotension treatment | 9.9 (3.4 to 28), p<0.001 | 9.7 (2.6 to 36), p<0.001 | 12.9 (3.9 to 43), p<0.001 | 9.7 (2.6 to 36), p<0.001 |
Gestational age* | 0.67 (0.50 to 0.89), p = 0.006 | 0.94 (0.58 to 1.5) | 0.71 (0.55 to 0.92), p = 0.008 | 0.94 (0.58 to 1.5) |
SGA† | 1.3 (0.44 to 3.9) | 0.86 (0.2 to 3.6) | 1.7 (0.59 to 4.6) | 0.86 (0.20 to 3.6) |
Female sex | 0.65 (0.29 to 1.4) | 0.57 (0.21 to 1.5) | 0.65 (0.29 to 1.4) | 0.57 (0.21 to 1.5) |
CRIB score‡ | 1.3 (1.1 to 1.6), p = 0.006 | 1.09 (0.79 to 1.5) | 1.3 (1.1 to 1.5), p = 0.006 | 1.09 (0.79 to 1.5) |
CRIB II, clinical risk index for babies; GI, gastrointestinal; IVH, intraventricular haemorrhage; NEC, necrotising enterocolitis; PVL, periventricular leukomalacia; SGA, small for gestational age.
*OR for each additional week of gestational age; †OR for having a birth weight less than the 10th percentile; ‡OR for each one point increment in CRIB.