Table 2.
Clinical and demographic characteristics of patients according to ethnic origin group
| Variable | Ashkenazi (n = 19) | Mediterranean (n = 178) |
Multiethnic (n = 87) |
Druze (n = 33) | P value |
|---|---|---|---|---|---|
| Age of onset (y), mean ± SD | 3.78 ± 1.8 | 2.87 ± 1.98 | 3.21 ± 2.03 | 2.4 ± 1.7 | 0.07 |
| Age of diagnosis (y), mean ± SD | 6.2 ± 2.7 | 4.9 ± 2.5 | 5.04 ± 2.4 | 4.7 ± 2.2 | 0.46 |
| Duration of episode (days), mean ± SD | 5.11 ± 2.2 | 4.52 ± 1.2 | 3.97 ± 1.6 | 3.95 ± 1.5 | Not significant |
| Interval between episodes (weeks), mean ± SD | 4.74 ± 3.4 | 3.8 ± 2.2 | 4.03 ± 2.4 | 3.5 ± 1.6 | 0.265 |
| FH of FMF, n/N (%) | 0 | 41/176 (23.3%) | 15/86 (17.4%) | 8/33 (24.2%) | 0.086 |
| FH of PFAPA, n/N (%) | 1/19 (5.3%) | 33/173 (19.1%) | 11/86 (12.8%) | 4/33 (12.1%) | 0.274 |
| FH of autoimmune disease, n/N (%) | 3/19 (15.8%) | 38/174 (21.8%) | 22/86 (25.6%) | 5/33 (15.1%) | 0.586 |
| FH of pharyngitis, n/N (%) | 4/19 (21%) | 42/173 (24.3%) | 20/85 (23.5%) | 7/33 (21.2%) | 0.974 |
| FH of tonsillectomy, n/N (%) | 4/10 (40%) | 33/118 (28%) | 12/39 (30.8%) | 13/32 (40.6%) | 0.533 |
FH=Family History