Demographic characteristics and medical comorbidities of patients with Sjogren’s syndrome and propensity score-matched comparison patients (n=81 064)
| Variable | Patients with Sjogren’s syndrome (n=20 266) | Comparison patients (n=60 798) | P value | ||
| Total (n) | % | Total (n) | % | ||
| Age, mean (SD) | 52.1 (16.3) | 52.0 (16.3) | 0.782 | ||
| Males | 5443 | 26.9 | 16 329 | 26.9 | >0.999 |
| Monthly income | 0.666 | ||||
| <NT$1–15 841 | 3529 | 17.4 | 10 428 | 17.1 | |
| NT$15 841–25 000 | 7749 | 38.2 | 23 386 | 38.5 | |
| ≥NT$25 001 | 8988 | 44.4 | 26 984 | 44.4 | |
| Geographic region | 0.006 | ||||
| Northern | 9091 | 44.9 | 27 888 | 45.9 | |
| Central | 7372 | 36.4 | 21 316 | 35.1 | |
| Southern | 3596 | 17.7 | 10 917 | 18.0 | |
| Eastern | 207 | 1.0 | 677 | 1.1 | |
| Urbanisation level | 0.770 | ||||
| 1 (most urbanised) | 6295 | 31.1 | 18 786 | 30.9 | |
| 2 | 5865 | 28.9 | 17 663 | 29.1 | |
| 3 | 3529 | 17.4 | 10 600 | 17.4 | |
| 4 | 2714 | 13.4 | 8006 | 13.2 | |
| 5 (least urbanised) | 18 636 | 9.3 | 5743 | 9.4 | |
| Hypertension | 7095 | 35.0 | 21 285 | 35.0 | >0.999 |
| Diabetes | 4161 | 20.5 | 12 483 | 20.5 | >0.999 |
| Hyperlipidaemia | 7356 | 36.3 | 22 068 | 36.3 | >0.999 |
| Rheumatoid arthritis | 1334 | 6.6 | 4002 | 6.6 | >0.999 |