Platelet Distribution Width at First Day of Hospital Admission in Patients with Hemorrhagic Fever with Renal Syndrome Caused by Hantaan Virus May Predict Disease Severity and Critical Patients’ Survival

Table 4

Predictive values of platelet parameters for prognosis of patients with gravis HFRS.

Variables	AUC	value	Cutoff value	Sensitivity	Specificity	95% CI for AUC
						Lower	Upper
PDW1	0.709	0.013	16.5	0.70	0.67	0.572	0.846
Age	0.707	0.014	45.5	0.94	0.48	0.588	0.826
Sepsis	0.650	0.075	—	—	—	0.474	0.825
Combination	0.867	<0.001	0.12^a	0.93	0.70	0.770	0.963

AUC: area under the receiver operating characteristic (ROC) curve; CI: confidence interval; PDW1: platelet distribution width at the first day of hospital admission. ^aProbability value of the combination was analyzed by logistic regression. The regression coefficients of these three parameters were used to set up a logit model of death for critical HFRS patients as follows: Logit(P|y = death) = −5.322 + 3.104 × sepsis − 0.246 × PDW + 0.087 × age.