Table 2 Henoch-Schönlein Purpura events. (N = 1002)
Only one Episode (n = 838), n (%) | Recurrent Episode (n = 164), n (%) | Crude HR (95% CI)b | p value∮ | |
|---|---|---|---|---|
Sex | ||||
Male | 412 (49.2) | 91 (55.5) | 1.27(0.93–1.73) | 0.131 |
Female | 426 (50.8) | 73 (44.5) | 1.00 | |
Age, y | ||||
Mean ± SD | 6.85 ± 3.70 | 7.22 ± 3.37 | 1.03 (0.99–1.07) | 0.224 |
0–6 | 499 (59.5) | 82 (50.0) | 1.00 | |
7–12 | 268 (32.0) | 71 (43.3) | 1.55 (1.13–2.13) | 0.007 |
13–18 | 71 (8.5) | 11 (6.7) | 0.95 (0.51–1.79) | 0.880 |
Economics Status | ||||
Normal | 771 (92.0) | 154 (93.9) | 1.00 | |
Low income | 67 (8.0) | 10 (6.1) | 0.77 (0.40–1.45) | 0.411 |
Comorbidities | ||||
Asthma | 356 (42.5) | 68 (41.5) | 0.97 (0.71–1.33) | 0.866 |
Allergic rhinitis | 627 (74.8) | 139 (84.8) | 1.80 (1.18–2.77) | 0.006 |
Atopic dermatitis | 221 (26.4) | 47 (28.7) | 1.13 (0.80–1.58) | 0.484 |
Clinical course | ||||
GI symptoms | 799 (95.3) | 161 (98.2) | 2.50 (0.80–7.82) | 0.116 |
Renal symptoms | 57 (6.8) | 36 (22.0) | 3.15 (2.17–4.56) | < 0.001 |
Joint Pain | 111 (13.2) | 30 (18.3) | 1.39 (0.94–2.07) | 0.102 |
Initiation of Steroid(1st) | ||||
No steroid use | 496 (59.2) | 67 (40.9) | 1.00 | |
Early (< 14 days) | 19 (2.3) | 4 (2.4) | 1.50 (0.55–4.12) | 0.430 |
Late (≥ 14 days) | 323 (38.5) | 93 (56.7) | 1.97 (1.44–2.70) | < 0.001 |
Duration of Steroid | ||||
No steroid use | 496 (59.2) | 67 (40.9) | 1.00 | |
SG (< 10 days) | 284 (33.9) | 48 (29.3) | 1.20 (0.83–1.74) | 0.329 |
LG(≥ 10 days) | 58 (6.9) | 49 (29.9) | 4.98 (3.45–7.21) | < 0.001 |