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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: Early Hum Dev. 2012 Jul 27;88(11):905–909. doi: 10.1016/j.earlhumdev.2012.07.009

Table 2.

Effect of EOS on the risk of LOS, NEC, and 120-day mortality (OR [95% CI])

LOS LOS (no CoNS) Clinical LOS NEC 120-day mortality
EOS (n=1059) 0.92 (0.74, 1.16) 0.95 (0.74, 1.22) 0.90 (0.70, 1.16) 0.89 (0.70, 1.12) 1.78 (1.49, 2.13)*
Gram- positive 0.89 (0.61, 1.30) 0.92 (0.61, 1.40) 1.14 (0.79, 1.65) 1.21 (0.86, 1.70) 1.53 (1.11, 2.10)
Gram- negative 0.97 (0.73, 1.31) 0.97 (0.70, 1.34) 0.80 (0.56, 1.13) 0.73 (0.53, 1.02) 2.08 (1.68, 2.59)*
*

p<0.05 using Cox proportional hazards model after controlling for gestational age, duration of initial antibiotic therapy, and day of life 3 variables.