Risk Factors for Predicting Mortality and Amputation of Patients with Necrotizing Soft-Tissue Infections: Retrospective Analysis of 111 Cases from a Single Medical Center

Table 9

Comparison of ROC in different parameters of dead patients.

ROC comparison and Mann−Whitney test
Comparison	Estimate	SD	95% CI		χ^2	value
Model-0.5	0.4255	0.0335	0.3599	0.4910	161.6852	<0.0001
WBC-0.5	0.1986	0.0788	0.0442	0.3531	6.3513	0.0117
HCT-0.5	0.2977	0.0869	0.1275	0.4680	11.7498	0.0006
Surgery-0.5	0.2477	0.0795	0.0919	0.4035	9.7129	0.0018

NSTIs, necrotizing soft-tissue infections; ROC, receiver operating characteristics; SD, standard derivation; CI, confidence interval; WBC, white blood cell; HCT, hematocrit.