Table 1.
Comparison of demographic characteristics and comorbidities between ankylosing spondylitis (AS) patients and the control group.
| Controls | AS patients | p-value | |
|---|---|---|---|
| Number | n = 57325 | n = 11465 | |
| Sex (male) | 43490 (75.87) | 8698 (75.87) | 1 |
| Age | 40.04 ± 14.51 | 40.04 ± 14.52 | 1 |
| ≥40 years | 25495 (44.47) | 5099 (44.47) | 1 |
| Low-income status | 12522 (21.84) | 2705 (23.59) | <0.0001 |
| Residence (urban) | 26601 (46.54) | 5617 (49.57) | <0.0001 |
| Diabetes | 2364 (4.12) | 564 (4.92) | 0.0001 |
| Hypertension | 5873 (10.25) | 1613 (14.07) | <0.0001 |
| Hyperlipidemia | 3584 (6.25) | 1020 (8.9) | <0.0001 |
| Cancer | 694 (1.21) | 202 (1.76) | <0.0001 |
| Stroke | 506 (0.88) | 174 (1.52) | <0.0001 |
| End-stage renal disease | 64 (0.11) | 44 (0.38) | <0.0001 |
| Depression | 2894 (5.05) | 1243 (10.84) | <0.0001 |