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Table 3 Risk factors associated with nosocomial infection on multivariate analysis, for infants with birth weight less than 1500 g and 1500 g or more

From: Variations in rates of nosocomial infection among Canadian neonatal intensive care units may be practice-related

Birth weight Less than 1500 g Odds Ratio (95% confidence intervals) 1500 g or more Odds Ratios (95% confidence intervals)
Gestation ≤24 weeks 2.7 (1.4 – 5.3) 4.0 (0.5 – 32.7)
Gestation 25–28 weeks 2.2 (1.2 – 4.1) 6.1 (1.6 – 23.1)
Gestation 29–32 weeks 1.1 (0.6 – 2.0) 1.9 (1.3 – 2.6)
SNAP II ≥10 1.2 (1.0 – 1.6) 1.0 (0.8 – 1.3)
Peripheral intravenous line 0.9 (0.7 – 1.1) 1.9 (1.1 – 3.2)
Central venous Line 0.9 (0.8 – 1.2) 1.6 (1.2 -2.1)
Assisted ventilation 1.5 (1.1 – 2.0) 2.9 (1.9 – 4.6)
Parenteral nutrition 3.9 (3.0 – 5.2) 5.1 (3.8 – 6.9)
Outborn status 2.0 (1.6 – 2.5) 1.9 (1.4 – 2.6)
Use of antibiotics 0.9 (0.4 – 2.3) 2.9 (1.6 – 5.0)
Congenital anomalies 1.2 (0.9 – 1.6) 2.9 (2.2 – 3.8)