From: Insights in to the pathogenesis of axial spondyloarthropathy based on gene expression profiles
 | Dataset 1 | Dataset 2 | Combined sets | |||
---|---|---|---|---|---|---|
 | SpA | Control | SpA | Control | SpA | Control |
Age (mean ± SD) | 51.8 ± 12.8 | 48.8 ± 21.4 | 46.7 ± 14.5 | 35.4 ± 9.7 | 49.7 ± 12.9 | 41.8 ± 17.4 |
Years since SpA diagnosis (mean ± SD) | 16.2 ± 14.9 |  | 8.2 ± 11.2 |  | 13.7 ± 14.0 |  |
Males/females | 9/2 | 4/8 | 4/3 | 1/12 | 13/5 | 5/20 |