Table 1 Clinical characteristics of the patients.
All (N = 306) | Flu vaccination (N = 102) | No flu vaccination (N = 204) | p value | |
|---|---|---|---|---|
Background; second questionnaire | ||||
Age at onset of NS (years) | 6.0 ± 4.1 | 5.6 ± 4.0 | 6.2 ± 4.2 | 0.26 |
Boy: Girl, n (%) | 215: 91 (70.3%: 29.7%) | 76: 26 (74.5%: 25.5%) | 139: 65 (68.1%: 31.9%) | 0.25 |
Gestational week* | 38.7 ± 2.3 | 38.7 ± 2.2 | 38.7 ± 2.3 | 0.48 |
Birth weight † | 2945 ± 497 | 2983 ± 507 | 2925 ± 491 | 0.71 |
Family history of NS, n (%) ‡ | 9 (3.0%) | 1 (1.0%) | 8 (4.0%) | 0.28 |
History of allergy, n (%) § | 114 (38.4%) | 44 (43.6%) | 70 (35.7%) | 0.19 |
Asthma | 36 (12.1%) | 11 (10.9%) | 25 (12.8%) | 0.64 |
Atopic dermatitis | 34 (11.4%) | 12 (11.9%) | 22 (11.2%) | 0.87 |
Allergic rhinitis | 56 (18.9%) | 22 (21.8%) | 34 (17.3%) | 0.35 |
Allergic conjunctivitis | 8 (2.7%) | 4 (4.0%) | 4 (2.0%) | 0.45 |
Food allergy | 28 (9.4%) | 9 (8.9%) | 19 (9.7%) | 0.83 |
Other | 6 (2.0%) | 2 (2.0%) | 4 (2.0%) | 1.0 |
Hematuria at onset of NS, n (%) || | 95 (31.5%) | 35 (35.0%) | 60 (29.7%) | 0.35 |
Past history of frequent-relapsing NS, n (%) | 147 (48.0%) | 39 (38.2%) | 108 (52.9%) | 0.015 |
Past history of steroid-dependent NS, n (%) | 134 (43.8%) | 38 (37.3%) | 96 (47.1%) | 0.1 |
Past history of steroid-resistant NS, n (%) ¶ | 29 (9.6%) | 9 (8.9%) | 20 (10.0%) | 0.76 |
Renal biopsy, n (%) ** | 163 (54.3%) | 50 (50.0%) | 113 (55.6%) | 0.45 |
Classification of renal histology | 0.25 | |||
Minimal change | 132 (81.0%) | 40 (80.0%) | 92 (81.4%) | |
Focal segmental glomerular sclerosis | 14 (8.6%) | 7 (14.0%) | 7 (6.2%) | |
Diffuse mesangial proliferation | 9 (5.5%) | 0 (0.0%) | 9 (8.0%) | |
Other | 8 (4.9%) | 3 (6.0%) | 5 (4.4%) | |
