Table 1.
Characteristics of patients by influenza type
| Characteristics | Influenza type | P value | |
|---|---|---|---|
| A (n = 128) | B (n = 109) | ||
| Boys | 68 (53.1) | 61 (56.0) | 0.662 |
| Age, yrs | |||
| Mean (SD) | 4.1 (4.4) | 5.6 (4.4) | 0.010 |
| Median (IQR) | 2.6 (1.2–4.8) | 4.9 (2.1–8.0) | 0.001 |
| Age group | < 0.001 | ||
| < 2 yrs | 49 (38.3) | 27 (24.8) | |
| 2–5 yrs | 50 (39.1) | 28 (25.7) | |
| ≥ 5 yrs | 29 (22.7) | 54 (49.5) | |
| Underlying conditions | 10 (7.8) | 9 (8.3) | 0.900 |
| Asthma | 2 (1.6) | ||
| Chronic renal disease | 2 (1.8) | ||
| Atopic dermatitis | 2 (1.6) | 1 (0.9) | |
| Neuromuscular disease | 5 (3.9) | 3 (2.8) | |
| Hematologic disease | 1 (0.9) | ||
| Developmental delay | 1 (0.9) | ||
| Preterm (< 37 weeks) | 2 (1.6) | 1 (0.9) | |
Values are presented as number (%), unless otherwise specified. SD, standard deviation; IQR, interquartile range