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Summary of factors and their association on diagnostic delay in axSpA
| Characteristics | Total no of studies comparing factor | Decreased delay | No difference | Increased delay | |
|---|---|---|---|---|---|
| Directional impact on delay | Gender (male) | 18 | 1 | 15 | 2 |
| Family history of axSpA (yes) | 5 | 0 | 5 | 0 | |
| Mixed impact on delay | HLA-B27 (+) | 15 | 7 | 6 | 2 |
| Radiographic axSpA (yes) | 9 | 0 | 5 | 4 | |
| Age of onset (<16 years) | 5 | 0 | 3 | 2 | |
| Peripheral arthritis (yes) | 5 | 1 | 3 | 1 | |
| Uveitis (yes) | 5 | 1 | 3 | 1 |
