Table 1 Demographic and clinical features of patients with systemic lupus erythematosus.
From: Risk factors of diffuse alveolar hemorrhage in Chinese patients with systemic lupus erythematosus
Characteristics | Non-DAH group (n = 896) | DAH group (n = 47) | p | ||||
|---|---|---|---|---|---|---|---|
N (%) | Mean ± SD | Quartile | N (%) | Mean ± SD | Quartile | ||
Age (year) | 37.7 ± 15.9 | (26.0, 48.8) | 31.8 ± 13.7 | (22.0, 41.0) | 0.014 | ||
Sex | |||||||
Female | 789 (88.1) | 42 (89.4) | 0.788 | ||||
SLE duration(year) | 3.3 ± 5.2 | (0.2, 5.0) | 1.9 ± 3.3 | (0.1, 2.0) | 0.004 | ||
Malar rash | 279 (31.1) | 12 (25.5) | 0.417 | ||||
Epilepsy | 15 (1.7) | 5 (10.6) | < 0.001 | ||||
Neuropsychological involvement | 84 (9.4) | 8 (17.0) | 0.142 | ||||
Fever | 301 (33.6) | 25 (53.2) | 0.006 | ||||
Arthritis | 422 (47.1) | 24 (51.1) | 0.596 | ||||
Photosensitivity | 113 (12.6) | 2 (4.3) | 0.088 | ||||
Serositis | 252 (28.1) | 32 (68.1) | < 0.001 | ||||
Xerostomia/xeroma | 93 (10.4) | 3 (6.4) | 0.525 | ||||
Oral ulcer | 100 (11.2) | 14 (29.8) | < 0.001 | ||||
Raynaud’s phenomenon | 103 (11.5) | 4 (8.5) | 0.529 | ||||
Alopecia | 161 (8.0) | 15 (31.9) | 0.017 | ||||
Rash | 251 (28.0) | 15 (31.9) | 0.562 | ||||
Pulmonary hypertension | 286 (31.9) | 24 (51.1) | 0.006 | ||||
ILD | 75 (8.4) | 9 (19.2) | 0.023 | ||||
SLEDAI | < 0.001 | ||||||
0–4 | 303 (33.8) | 2 (4.3) | |||||
5–9 | 328 (36.6) | 11 (23.4) | |||||
10–14 | 154 (17.2) | 12 (25.5) | |||||
≥ 15 | 111 (12.4) | 22 (46.8) | |||||
Pathogen infection | 299 (33.4) | 39 (83.0) | < 0.001 | ||||
