The Relationship between Routine Blood Parameters and the Prognosis of COVID-19 Patients in the Emergency Department

Table 3

The value of NLR, MLR, and PLR in diagnosis of severe COVID-19 on admission.

	Cutoff	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
NLR	≥12.1	90.9	85.4	83	92.3
MLR	≥1	77.7	82.9	78.1	82.6
PLR	≥345.9	79.5	67.9	66	80.9
NLR + MLR	≥0.25	90.9	84.3	82	92.2
NLR + PLR	≥0.28	90	85.7	83.2	91.9
NLR + PLR + MLR	≥0.29	90	86.1	83.5	91.6
MLR + NEU	≥0.25	93.2	86.1	84	94.1