TABLE 8.
Sensitivity, specificity, positive predictive value, and negative predictive value of NLR and PLR at different cutoff points and according to the severity of the COVID‐19 disease
| Cutoff point | NLR | NLR | PLR | PLR | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.65 | 5.1 | 193.5 | 221 | |||||||||
| Mild | Mod | Sev | Mild | Mod | Sev | Mild | Mod | Sev | Mild | Mod | Sev | |
| Sensitivity (%) | 76 | 80 | 90 | 24 | 50 | 70 | 52 | 60 | 90 | 33 | 50 | 90 |
| Specificity (%) | 25 | 25 | 25 | 63 | 63 | 63 | 67 | 67 | 67 | 83 | 83 | 83 |
| PPV (%) | 58 | 25 | 33 | 47 | 36 | 44 | 68 | 43 | 53 | 58 | 56 | 69 |
| NPV (%) | 43 | 63 | 86 | 38 | 75 | 83 | 50 | 80 | 94 | 73 | 80 | 95 |
| Odds ratio | 1.04 | 1.33 | 3.0 | 0.53 | 1.67 | 3.89 | 2.12 | 3.0 | 18.0 | 2.5 | 5.0 | 45 |
| 95% CI | 0.31–3.52 | 0.22–8.10 | 0.31–28.84 | 0.17–1.68 | 0.38–7.40 | 0.80–19.0 | 0.71–6.30 | 0.65–13.80 | 1.93–168.0 | 0.68–9.12 | 0.97–26.80 | 4.40–461.7 |
Abbreviations: CI, confidence interval; Mod, moderate; NLR, neutrophil/lymphocyte ratio; NPV, negative predictive value; PLR, platelet/lymphocyte ratio; PPV, positive predictive value; Sev, severe.