Examining the association of elevated initial serum lactate with mortality and morbidity in trauma patients: a retrospective study

Table 3 Comparison of sensitivity, specificity, and AUC of injury severity score (ISS) and initial serum lactate levels (iSL) in predicting in-hospital mortality among trauma patients at the puerto rico trauma hospital (July 2014 – June 2019)

Outcome	Cut-off	AUC	95%CI	Standard error	Sensitivity (%)	Specificity (%)
In-hospital mortality	ISS > 15	0.59	0.54–0.64	0.02	70.53	47.85
In-hospital mortality	iSL levels (> 19.9 mg/dL)	0.59	0.54–0.64	0.03	69.47	48.98

ISS: Injury Severity Score; iSL levels: initial serum lactate levels; AUC: area under the curve; CI: Confidence Interval

ISSN: 1865-1380