The Neutrophil-to-Lymphocyte Ratio and the Platelet-to-Lymphocyte Ratio as Predictors of Mortality in Older Adults Hospitalized with COVID-19 in Peru

Table 4

Optimal cut-off points to predict 60-day mortality for NLR and PLR based on Youden’s index and maximally selected rank statistics criteria.

Method of estimate cut-off point	Cut-off point	Sensitivity % (95% CI)	Specificity % (95% CI)
NLR
Youden’s index	8.6	79.4 (73.5 to 85.4)	55.4 (42.3 to 68.4)
Maximally selected rank statistics	6.23	90.6 (86.3 to 94.8)	39.3 (26.5 to 52.1)
PLR
Youden’s index	34.2	62.8 (55.7 to 69.9)	69.6 (57.6 to 81.7)
Maximally selected rank statistics	34.2	62.8 (55.7 to 69.9)	69.6 (57.6 to 81.7)

95% CI: 95% confidence interval; NLR: neutrophil-to-lymphocyte ratio; PLR: platelet-to-lymphocyte ratio.