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General characteristics of the subjects
| Group | No. | Male | Age (yr) |
|---|---|---|---|
| Infant (≤ 1 yr) | 93 | 47 (50.5) | 0.31 ± 0.34 |
| Child (> 1 and ≤ 8 yr) | 110 | 66 (60.0) | 4.3 ± 2.1 |
| Adult (≥ 18 yr) | 264 | 155 (58.7) | 41.5 ± 11.9 |
Values are presented as n (%) or mean±standard deviation.
