From: Difference of clinical features in childhood Mycoplasma pneumoniae pneumonia
Age groups | ≤2 y | 3-5 y | ≥6 y | P |
---|---|---|---|---|
(n = 29) | (n = 81) | (n = 81) | ||
Clinical characteristics | ||||
Age (y) | 2.0 ± 0.7 | 4.2 ± 0.8 | 8.3 ± 2.3 | <0.001 |
Duration of fever (d) | ||||
Before admission | 3.1 ± 2.3 | 3.6 ± 2.8 | 4.2 ± 2.3 | 0.09 |
Total duration | 4.8 ± 2.9 | 5.4 ± 3.3 | 6.1 ± 2.9* | 0.1 |
Cases of ≥7 d (n,%) † | 9 (31) | 29 (36) | 40 (49) | 0.04 |
Hospitalization (d) | 6.9 ± 1.8 | 6.9 ± 2.3 | 6.8 ± 2.1 | 0.9 |
Pneumonia (n,%) | ||||
Bronchopneumonia | 23 (79) | 48 (59) | 25 (31) | <0.001 |
Segmental/lobar | 6 (21) | 33 (41) | 56 (69) | <0.001 |
Laboratory findings | ||||
Hemoglobin (g/dL) | 12.2 ± 0.9 | 12.1 ± 0.9 | 12.3 ± 0.9 | 0.6 |
Leukocyte (×103//μL) | 11.2 ± 7.3 | 7.9 ± 3.5 | 7.1 ± 2.40 | <0.001 |
Neutrophil (%) | 47 ± 14 | 61 ± 14 | 65 ± 11 | <0.001 |
Lymphocyte (%) | 42 ± 13 | 29 ± 13 | 24 ± 9 | <0.001 |
Monocyte (%) | 9 ± 3 | 8 ± 3 | 8 ± 3 | 0.2 |
Platelet (×103/μL) | 319 ± 111 | 266 ± 91 | 251 ± 75 | 0.002 |
CRP (mg/dL) | 1.6 ± 2.9 | 3.8 ± 4.8 | 4.1 ± 4.1 | 0.03 |
ESR (mm/h) | 40 ± 22 | 44 ± 20 | 46 ± 21 | 0.4 |
Seroconveter (n, %) ‡ | 16 (55) | 35 (43) | 35 (43) | 0.4 |