Prehospital Index provides prognosis for hospitalized patients with acute trauma

Figures & data

Figure 1 ROC curves of PHI and ISS in hospitalized patients with acute trauma.

Abbreviations: ROC, receiver-operating characteristic; PHI, Prehospital Index; ISS, Injury Severity Score.

Table 1 Comparison of diagnostic evaluation indices of PHI and ISS

	Sen (%)	Spe (%)	FPR (%)	FNR (%)	Acc (%)	J*	LR^+	LR^−	PV^+	PV^−
PHI	75.0	87.4	12.6	25.0	86.7	0.624	5.951	0.286	0.267	0.983
ISS	57.7	88.9	11.1	42.3	87.1	0.466	5.211	0.476	0.242	0.972

Note:

* Youden’s index.

Abbreviations: PHI, Prehospital Index; ISS, Injury Severity Score; Sen, sensitivity; Spe, specificity; FPR, false-positive rate; FNR, false-negative rate; Acc, accuracy; LR, likelihood ratio; PV, predictive value.