Table 3.
Laboratory and radiologic findings in patients ALRI according to age and severity (N = 570)
| Age category (%) | Case category (%) | |||||||
|---|---|---|---|---|---|---|---|---|
| Total N (%) | 1–11 months old | 1–5 years old | 6–12 years old | Non-severe cases | Severe cases | Fatal cases | ||
| Total N (%) | 570 | 381 (67) | 178 (31) | 11 (2) | 463 (81) | 107 (19) | 28 (5) | |
| CBC | Numbers of tests performed (%) | 361 (63) | 224 (59) | 128 (72) | 9 (82) | 272 (59) | 89 (83) | 27 (96) |
| WBC [× 103/μL] [IQR] | 13.4 [9.7–18.6] | 13.6 [10.0–18.1] | 12.6 [9.0–18.4] | 22.0 [10.5–26.1] | 12.7 [9.3–17.3] | 15.9 [12.0–21.0] | 20.0 [12.9–24.9] | |
| Neutrophil [%] | 50 [37–69] | 50 [36–69] | 50 [37–69] | 51 [37–69] | 50 [37–69] | 50 [36–69] | 51 [38–69] | |
| Hemoglobin [g/dL] [IQR] | 10.4 [9.6–11.2] | 10.3 [9.5–11.1] | 10.8 [9.8–11.5] | 10.4 [9.5–11.0] | 10.4 [9.7–11.2] | 10.3 [9.4–11.2] | 10.4 [9.2–11.5] | |
| Platelets [× 103/µL] [IQR] | 393 [285–507] | 412 [308–533] | 366 [255–452] | 332 [277–479] | 394 [293–500] | 389 [249–521] | 277 [182–480] | |
| Chemistry | Numbers of tests performed (%) | 231 (41) | 133 (35) | 90 (51) | 8 (73) | 171 (37) | 60 (56) | 19 (68) |
| C-reactive protein [mg/dL][IQR] | 1.6 [0.3–4.6] | 1.3 [0.2–3.8] | 1.9 [0.5–4.7] | 9.5 [0.6–11.9] | 1.5 [0.2–4.2] | 1.7 [0.5–5.5] | 1.8 [0.8–5.2] | |
| Chest X-ray | Numbers of tests performed (%) | 336 (59) | 209 (55) | 118 (66) | 9 (82) | 250 (54) | 86 (80) | 25 (89) |
| Consolidation | 148 (44) | 86 (41) | 57 (48) | 5 (56) | 88 (35) | 60 (70) | 20 (80) | |
| Overinflation | 144 (43) | 92 (44) | 50 (42) | 2 (22) | 117 (47) | 27 (31) | 3 (12) | |
| Normal Finding | 36 (11) | 26 (12) | 9 (8) | 1 (11) | 34 (14) | 2 (2) | 0 (0) | |
Categorical data are presented as number (percentage, %). Continuous data are presented as median (interquartile range)
ALRI acute lower respiratory infection, Total N total number, IQR interquartile range, CBC complete blood count, WBC white blood cells, RSV respiratory syncytial virus, PCR polymerase chain reaction