. Author manuscript; available in PMC: 2014 Oct 1.

Published in final edited form as: J Pediatr. 2013 Jun 12;163(4):955–960.e1. doi: 10.1016/j.jpeds.2013.04.053

Table III.

Comparison of simple logistic regression and random and fixed effects mixed models, odds ratio (95% confidence interval)

	Comparison	Logistic regression	Random effects	Fixed effects
Air leak syndromes	Calfactant vs. beractant	0.85 (0.78, 0.92)^*	0.94 (0.81, 1.08)	1.17 (0.95, 1.43)
	Calfactant vs. poractant	1.25 (1.13, 1.40)^*	1.23 (1.04, 1.44)^*	1.23 (0.98, 1.56)
	Beractant vs. poractant	1.47 (1.35, 1.61)^*	1.31 (1.13, 1.51)^*	1.06 (0.87, 1.29)
Death	Calfactant vs. beractant	0.87 (0.81, 0.94)^*	0.99 (0.85, 1.15)	1.14 (0.93, 1.39)
	Calfactant vs. poractant	1.04 (0.95, 1.13)	1.05 (0.88, 1.24)	0.98 (0.78, 1.23)
	Beractant vs. poractant	1.19 (1.09, 1.29)^*	1.06 (0.91, 1.24)	0.86 (0.72, 1.04)
BPD or death	Calfactant vs. beractant	0.81 (0.76, 0.85)^*	1.01 (0.88, 1.16)	1.08 (0.93, 1.26)
	Calfactant vs. poractant	1.10 (1.02, 1.16)^*	1.15 (0.98, 1.35)	1.19 (1.00, 1.41)
	Beractant vs. poractant	1.35 (1.26, 1.43)^*	1.14 (1.00, 1.30)	1.10 (0.96, 1.27)

P<0.05.