Comparison of baseline characteristics between cohorts with and without systemic lupus erythematosus.
| Systemic Lupus Erythematosus | |||
|---|---|---|---|
| Characteristics | No, n = 54,756 | Yes, n = 13,689 | |
| n (%) | n (%) | p | |
| Men | 6448 (11.8) | 1612 (11.8) | 1.00 |
| Age, yrs | 0.93 | ||
| 1–17 | 7166 (13.1) | 1742 (12.7) | |
| 18–24 | 9594 (17.5) | 2448 (17.9) | |
| 25–34 | 13,468 (24.6) | 3367 (24.6) | |
| 35–44 | 11,028 (20.1) | 2757 (20.1) | |
| 45–54 | 7148 (13.1) | 1787 (13.1) | |
| 55–64 | 3360 (6.1) | 840 (6.1) | |
| ≥ 65 | 2992 (5.5) | 748 (5.5) | |
| Mean (SD)† | 35.0 (15.8) | 35.0 (15.8) | 0.87 |
| Income (NT$) | 0.005 | ||
| < 15,000 | 16,849 (30.8) | 4299 (31.4) | |
| 15,000–22,799 | 28,240 (51.8) | 6856 (50.1) | |
| ≥ 22,800 | 9667 (17.7) | 2534 (18.5) | |
| Comorbidity | |||
| CAD | 398 (0.7) | 224 (1.6) | < 0.0001 |
| CHF | 133 (0.2) | 253 (1.9) | < 0.0001 |
| Hypertension | 865 (1.6) | 927 (6.8) | < 0.0001 |
| Diabetes | 643 (1.2) | 254 (1.9) | < 0.0001 |
| Hyperlipidemia | 284 (0.5) | 267 (2.0) | < 0.0001 |
| Hypercoagulability | 8 (0.01) | 41 (0.30) | < 0.0001 |
| Renal disease | 233 (0.43) | 2564 (18.7) | < 0.0001 |
| Atrial fibrillation | 48 (0.09) | 54 (0.4) | < 0.0001 |
| Valvular heart disease | 141 (0.3) | 251 (1.8) | < 0.0001 |
↵† t-test, otherwise chi-square. Renal disease, ICD-9-CM code: 580–589. CAD: coronary artery disease; CHF: congestive heart failure; ICD-9-CM: International Classification of Diseases, 9th Revision, Clinical Modification.