| Reference ranges | Active men after SCI Wheelchair rugby players | Inactive men after SCI | Chi 2 (p) |
 | % |  | ||
BMD dis | Low BMD | 20 | 56 | 6.876 (0.009)** |
Norm BMD | 80 | 44 | Â | |
BMD prox | Low BMD | 44 | 80 | 7.089 (0.007)** |
Norm BMD | 56 | 20 | Â | |
 | Active smokers men after SCI | Non-smokers men after SCI |  | |
 | % |  | ||
BMD dis | Low BMD | 71.4 | 13.8 | 17.173 (0.000)*** |
Norm BMD | 28.6 | 86.2 | Â | |
BMD prox | Low BMD | 100 | 34.5 | 22.191 (0.000)*** |
Norm BMD | 0 | 65.5 | Â |