| Men | Women | ||||
---|---|---|---|---|---|---|
 |  | Neck-distortion |  | Neck-distortion | ||
 | Total no* | No (%)** | OR (95%CI) | Total no | % | OR (95%CI) |
MSC -/HA - | 9761 | 135 (1.4) | 1.0 (ref) | 7763 | 64 (0.8) | 1.0 (ref) |
MSC -/HA + | 2969 | 66 (2.2) | 1.6 (1.1-2.2) | 5127 | 83 (1.6) | 1.3 (0.9-1.9) |
MSC +/HA - | 5758 | 202 (3.5) | 2.2 (1.7-2.9) | 5437 | 134 (2.5) | 2.8 (2.0-4.2) |
MSC +/HA + | 3315 | 268 (8.1) | 4.8 (3.6-6.2) | 6765 | 404 (6.0) | 5.2 (3.7-7.1) |