Table 1. Clinical characteristics of study participants with Mycoplasma pneumoniae pneumonia according to macrolide susceptibility.
| Characteristic | MSMP (n=12) | MRMP (n=82) | Total group (n=94) | P value |
|---|---|---|---|---|
| Age (yr) | 7.6±3.1 | 5.1±2.6 | 5.4±2.8 | 0.001* |
| Male sex | 3/12 (25.0) | 34/82 (41.5) | 37/94 (39.4) | 0.353 |
| Admission rate | 7/12 (58.3) | 62/82 (75.6) | 69/94 (73.4) | 0.206 |
| Total fever duration (day) | 8.0±6.0 | 8.2±3.2 | 8.2±3.6 | 0.884 |
| Respiratory rate at the time of visit (/min) | 25.7±4.4 (20–34) | 27.4±6.0 (20–52) | 27.2±5.9 (20–52) | 0.486 |
| Heart rate at the time of visit (/min) | 118.9±13.8 | 122.9±16.4 | 122. 5±16.1 | 0.508 |
| Positive IgM against M. pneumoniae | 8/9 (88.9) | 64/77 (83.1) | 72/86 (83.7) | 0.207 |
| Whole blood cells (cells/mm3) | 7,500±2,670 | 8,926±4,801 | 8,717±4,575 | 0.319 |
| Platelet count (/mm3) | 248.5±59.2 | 308.3±106.1 | 300.9±103.1 | 0.072 |
| Neutrophil (%) | 69.1±7.7 | 61.0±13.3 | 62.0±13.0 | 0.054 |
| Lymphocytes (%) | 21.1±6.0 | 28.6±11.9 | 27.7±11.6 | 0.003* |
| Eosinophil (%) | 1.5±2.2 | 2.1±2.1 | 2.0±2.1 | 0.456 |
| CRP (mg/dL) | 5.9±7.3 (0.4–21.2) | 4.8±5.0 (0.1–26.5) | 4.9±5.3 (0.1–26.5) | 0.539 |
| AST (IU/L) | 648.7±2,153.5 (23–7,487) | 82.3±420.5 (17–3,746) | 159.6±878.7 (17–7,487) | 0.380 |
| ALT (IU/L) | 720.6±2354.0 (6–7,818) | 59.2±379.1 (6–3,362) | 140.9±896.3 (6–7,818) | 0.374 |
| Coinfection with virus | 5/6 (83.3) | 30/54 (55.6) | 35/60 (58.3) | 0.190 |
Values are presented as a mean±standard deviation (SD), number (%), mean±SD (range),
MRMP, macrolide-resistant Mycoplasma pneumoniae; MSMP, macrolide-susceptible Mycoplasma pneumoniae; CRP, C-reactive protein; AST, aspartate aminotransferase; ALT, alanine aminotransferase.
*P<0.05.