Table 2.
Laboratory parameters of COVID-19 patients according to baseline NLR quartiles.
| Variable | Overall (0–84) N = 601 |
Q1 (0–2.57) N = 141 |
Q2 (2.58–4.44) N = 155 |
Q3 (4.45–7.48) N = 151 |
Q4 (7.49–84) N = 154 |
P-value |
|---|---|---|---|---|---|---|
| Blood count | ||||||
| WBC (counts/μL) | 5700 (4370–7500) | 4400 (3700–5800) | 5100 (4150–6400) | 6100 (4950–7430) | 8300 (6125–11,122) | < 0.001 |
| Neutrophil fraction | 75.0 (64.6–82.6) | 57.9 (54.0–61.4) | 70.3(66.2–73.0) | 79.0 (76.3–81.1) | 87.3 (84.0–90.4) | < 0.001 |
| Lymphocyte fraction | 16.5 (10.7–25.0) | 31.3 (28.0–35.6) | 20.1 (18.2–22.7) | 14.0 (12.2–15.5) | 7.9 (5.5–9.5) | < 0.001 |
| Hemoglobin (g/dL) | 13.4 (11.6–14.7) | 13.6 (12.3–14.9) | 13.5 (11.5–14.9) | 13.5 (11.4–14.8) | 12.7 (11.4–14.4) | 0.007 |
| Platelet (× 104 counts/μL) | 20.7 (19.9–21.4) | 19.9 (18.8–21.1) | 20.8 (19.4–22.3) | 20.8 (19.2–22.3) | 21.0 (19.3–22.7) | 0.760 |
| NLR at follow up | 3.05 (1.93–5.77) | 1.88 (1.37–2.79) | 3.04 (2.00–4.56) | 3.50 (2.46–6.42) | 4.28 (2.33–9.53) | < 0.001 |
| Coagulation | ||||||
| D-dimer (μg/mL) | 1.49 (0.80–2.80) | 0.95 (0.60–1.60) | 1.20 (0.70–2.22) | 1.60 (0.91–3.22) | 2.25 (1.33–6.12) | < 0.001 |
| PT (s) | 13.8 (11.9–85.0) | 12.4 (11.6–95.7) | 13.1 (11.7–85.5) | 13.3 (12.1–83.0) | 18.7 (12.6–83.0) | 0.471 |
| APTT (s) | 33.9 (30.0–38.3) | 32.1 (29.5–35.0) | 34.3 (29.8–38.2) | 34.1 (31.4–38.6) | 34.1 (30.0–39.4) | 0.443 |
| Others | ||||||
| CRP (mg/dL) | 5.5 (1.5–11.4) | 1.2 (0.2–3.8) | 3.7 (1.1–7.7) | 7.1 (3.8–12.3) | 12.2 (7.5–17.0) | < 0.001 |
| LDH (IU/L) | 288 (223–411) | 230 (194–273) | 255 (210–346) | 340 (254–456) | 396 (281–498) | < 0.001 |
| Cre (mg/dL) | 0.82 (0.66–1.05) | 0.79 (0.61–0.92) | 0.82 (0.64–1.02) | 0.81 (0.67–1.10) | 0.90 (0.70–1.19) | 0.058 |
Data are shown as percentage for categorical and as median (IQR) for continuous variables.
PT Prothrombin time, APTT activated partial thromboplastic time, LDH lactate dehydrogenase, Cre creatinine.