Handheld Capillary Blood Lactate Analyzer as an Accessible and Cost-Effective Prognostic Tool for the Assessment of Death and Heart Failure Occurrence during Long-Term Follow-Up

Table 3

ROC-derived cut-off values of LC for each endpoint.

Endpoint during follow-up	LC (mmol/l)	Sensitivity and specificity (%)	AUC ± SD	95% CI
Death (I)	5.35	80		(0.80–0.99)
Heart failure (II)	4.14	69		(0.61–0.88)
Re-MI (III)	3.28	49		(0.43–0.69)

AUC: area under the curve. CI: confidence interval. LC: lactate concentration. Re-MI: recurrent myocardial infarction. ROC: receiver operating characteristic. SD: standard deviation.