Table 4 Age-specific prevalence ratio for vertebral fractures in ankylosing spondylitis patients
From: Incidence and predictors of morphometric vertebral fractures in patients with ankylosing spondylitis
Age (years) | Age ≥40 years | General population | SPR (95% CI) |
|---|---|---|---|
|  | (n = 108) | (n = 2684) 1 |  |
| Â | Number of VF/total (%) | Number of VF/total (%) | Â |
<40 | Â | Not available | Â |
40 to 49 | 14/69 (33.3%) | 26/494 (5.2%) | Â |
50 to 59 | 7/28 (25.0%) | 70/840 (8.3%) | Â |
60 to 69 | 3/7 (28.6%) | 177/964 (18.4%) | Â |
70 to 79 | 3/4 (75%) | 91/386 (30.8%) | Â |
Total | 27/108 (25%) | 364/2684 (13.6%) | 3.3 (2.1 to 4.5) |