| Demographic Data | Patients (n = 151) | Controls (n = 80) | t/x2# | p-value |
| Age (years) | ||||
| Mean ± SD | 5.66 ± 4.34 | 6.58 ± 4.30 | 1.356 | 0.126 |
| Range | 0.5 - 12 | 0.5 - 12 | ||
| Sex | ||||
| Female | 86 (57.0%) | 54 (67.5%) | 2.436# | 0.119 |
| Male | 65 (43.0%) | 26 (32.5%) |