Table 1: Baseline demographic characteristics.
| Cases (n = 55) | Controls (n = 28) | |
| Median age (mo)* | 12 | 18 |
| Sex (M:F) | 1.15 | 1.15 |
| WAZ# | -2.99 (1.26) | -0.93 (1.44) |
| HAZ# | -1.46 (0.89) | -0.31 (0.74) |
| Symptom duration (days) | 2.66 (0.86) | 7.11 (12.20) |
All values except age in mean (SD); WAZ: Weight for age z score; HAZ: height for age z score; *p = 0.338, #p = < 0.001.