Table 2.
Blood routine results of children with coronavirus disease 2019
| Variables | All patients (n = 217) | < 1 y patients (n = 40) | 1–6 y patients (n = 58) | 7–10 y patients (n = 65) | 11–15 y patients (n = 54) | P |
|---|---|---|---|---|---|---|
| White blood cell count (× 109/L) | Normal range (age adjusted) | 6.0–15.5 | 5.0–15.5 | 4.5–13.5 | 4.5–13.0 | |
| Mean ± SD | 6.86 ± 0.17 | 8.21 ± 0.50 | 7.47 ± 0.31 | 6.21 ± 0.27 | 5.98 ± 0.24 | |
| Below normal, n (%) | 65 (30.0) | 7 (17.5) | 10 (17.2) | 27 (41.5) | 21 (38.9) | 0.009 |
| Normal, n (%) | 146 (67.3) | 30 (75.0) | 47 (81.0) | 37 (56.9) | 32 (59.3) | |
| Above normal, n (%) | 6 (2.8) | 3 (7.5) | 1 (1.7) | 1 (1.5%) | 1 (1.9) | |
| Neutrophil count (× 109/L) | Normal range (age adjusted) | 1.5–8.5 | 1.5–8.0 | 1.5–8.5 | 1.8–8.0 | |
| Mean ± SD | 2.91 ± 0.11 | 2.39 ± 0.27 | 2.83 ± 0.24 | 3.05 ± 0.18 | 3.23 ± 0.18 | |
| Below normal, n (%) | 17 (7.8) | 8 (20.0) | 6 (10.3) | 3 (4.6) | 0 (0.0) | 0.019 |
| Normal, n (%) | 187 (86.2) | 29 (72.5) | 48 (82.8) | 59 (90.8) | 51 (94.4) | |
| Above normal, n (%) | 13 (6.0) | 3 (7.5) | 4 (6.9) | 3 (4.6) | 3 (5.6) | |
| Lymphocyte count (× 109/L) | Normal range (age adjusted) | 4.0–10.5 | 2.0–8.0 | 1.5–6.5 | 1.2–5.2 | |
| Mean ± SD | 3.24 ± 0.12 | 4.89 ± 0.37 | 3.87 ± 0.24 | 2.56 ± 0.13 | 2.16 ± 0.82 | |
| Below normal, n (%) | 14 (6.5) | 4 (10.0) | 4 (6.9) | 3 (4.6) | 3 (5.6) | < 0.001 |
| Normal, n (%) | 182 (83.9) | 24 (60.0) | 46 (79.3) | 62 (95.4) | 50 (92.6) | |
| Above normal, n (%) | 21 (9.7) | 12 (30.0) | 8 (13.8) | 0 (0.0) | 1 (1.9) | |
| Hemoglobin (g/L) | Normal range (age adjusted) | 113–141 | 115–140 | 115–155 | 120–160 | |
| Mean ± SD | 126 ± 0.92 | 113 ± 1.99 | 124 ± 1.18 | 127 ± 1.25 | 136 ± 1.82 | |
| Below normal, n (%) | 32 (14.7) | 19 (47.5) | 5 (8.6) | 5 (7.7) | 3 (5.6) | < 0.001 |
| Normal, n (%) | 157 (72.4) | 21 (52.5 | 51 (87.9) | 55 (84.6) | 30 (55.6) | |
| Above normal, n (%) | 28 (12.9) | 0 (0.0) | 2 (3.4) | 5 (7.7) | 21 (38.9) | |
| Platelet count (× 109/L) | Normal range (age adjusted) | 150–400 | 100–378 | 100–378 | 100–378 | |
| Mean ± SD | 305 ± 7.09 | 389 ± 22.81 | 303 ± 11.37 | 286 ± 10.07 | 268 ± 10.53 | |
| Below normal, n (%) | 1 (0.5) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (1.9) | < 0.001 |
| Normal, n (%) | 171 (78.8) | 18 (45.0) | 45 (77.6) | 58 (89.2) | 50 (92.6) | |
| Above normal, n (%) | 45 (20.7) | 22 (55.0) | 13 (22.4) | 7 (10.8) | 3 (5.6) | |
| Monocyte (× 109 g/L) | Normal range (age adjusted) | 0.26–1.7 | 0.26–0.4 | 0.26–0.4 | 0.26–0.4 | |
| Mean ± SD | 0.47 ± 0.01 | 0.56 ± 0.42 | 0.48 ± 0.03 | 0.41 ± 0.02 | 0.44 ± 0.02 | |
| Below normal, n (%) | 21 (9.7) | 1 (2.5) | 2 (3.4) | 11 (16.9) | 7 (13.0) | 0.022 |
| Normal, n (%) | 83 (38.2) | 11 (27.5) | 28 (48.3) | 25 (38.5) | 19 (35.2) | |
| Above normal, n (%) | 113 (52.1) | 28 (70.0) | 28 (48.3) | 29 (44.6) | 28 (51.9) |
Normal range (age-adjusted) of each item has been shown in bold. SD standard deviation