. Author manuscript; available in PMC: 2016 Jul 1.

Published in final edited form as: J Pediatr. 2015 Apr 25;167(1):29–34.e1. doi: 10.1016/j.jpeds.2015.03.040

Table 3.

Results from bivariate and multivariable logistic regression modeling of demographic and clinical factors associated with achievement of enteral autonomy in children with intestinal failure (n=272). Model 1 includes data from all 272 children; model 2 includes only those children with intra-operatively measured residual small bowel length (n=144).

Model	Characteristics	Bivariate OR (95% CI)	P Value¹	Multivariable OR (95% CI)	P Value²

Model 1: all children, n=272	NEC		0.005		0.004
	No	Reference		Reference
	Yes	2.64 (1.53, 4.55)		2.42 (1.33, 4.47)

	ITx Site		<0.001		<0.001
	Yes	Reference		Reference
	No	2.86 (1.70, 4.79)		2.73 (1.56,4.78)

	Preserved ICV		<0.001		<0.001
	No	Reference		Reference
	Yes	2.48 (1.49, 4.12)		2.80 (1.63, 4.83)

Model 2: measured bowel length, n=144	NEC		0.002		0.009
	No	Reference		Reference
	Yes	3.22 (1.54,6.73)		3.44 (1.36, 8.71)

	ITx Site		<0.001		<0.001
	Yes	Reference		Reference
	No	7.91(3.44,18.18)		6.56 (2.53,16.98)

	Residual small bowel length	1.04 (1.03,1.06)	<0.001	1.04 (1.02,1.06)	<0.001
	Preserved ICV		0.02		0.36
	No	Reference		Reference
	Yes	2.21(1.12, 4.34)		1.52 (0.62, 3.74)

OR (95% CI) and p-value obtained from separate logistic regression models with each characteristic considered as a single predictor of achievement of enteral autonomy.

OR (95% CI) and p-value obtained from multivariable logistic regression model with all characteristics considered as predictors of achievement of enteral autonomy. Variables selected for inclusion in the model using a forward-selection type model building procedure, beginning by ranking the variables by significance level. Model includes only those children with intraoperatively measured residual small bowel length.