Table 4 Univariate and multivariate... | American Society of Hematology

Table 4

Univariate and multivariate logistic regression models

Variable	Degrees of freedom	Likelihood ratio, χ²	c-index	P
Log anti-heparin/PF4	1	15.16	0.70	< .001
Confirm⁺	1	18.60	0.65	< .001
Surgical service	1	4.33	0.60	.037
Log anti-heparin/PF4⁺ and Confirm⁺	2	34.42	0.78	< .001

Variable	Degrees of freedom	Likelihood ratio, χ²	c-index	P
Log anti-heparin/PF4	1	15.16	0.70	< .001
Confirm⁺	1	18.60	0.65	< .001
Surgical service	1	4.33	0.60	.037
Log anti-heparin/PF4⁺ and Confirm⁺	2	34.42	0.78	< .001

c-index indicates the concordance probability, as described in “Methods.”