. Author manuscript; available in PMC: 2017 Nov 1.

Published in final edited form as: J Surg Res. 2016 Jul 15;206(1):106–112. doi: 10.1016/j.jss.2016.07.013

Table 3.

Multivariable morbidity risk model

	Odds Ratio	95% CI min	95% CI max	Wald Chi-Square	P-value
Perioperative transfusion	4.18	2.18	8.02	4.29	0.0001
Major hepatectomy vs. minor hepatectomy	1.30	0.74	2.28	0.90	0.366
NSQIP morbidity probability (unit change = 0.10)	1.15	0.11	12.2	2.03	0.042

Model C-statistic: 0.68