Demographic and rugby history
| RIRP | Controls | p Value* | |
|---|---|---|---|
| Age | |||
| Mean (SD) [minimum, maximum] | 53.5 (13.0) [26, 79] | 55.1 (9.0) [36, 72] | 0.542 |
| Social deprivation (SIMD) quintile | 0.320 | ||
| 1 (high) | 0 (0%) | 0 (0%) | |
| 2 | 2 (4%) | 1 (3%) | |
| 3 | 7 (16%) | 6 (21%) | |
| 4 | 8 (18%) | 8 (28%) | |
| 5 (low) | 28 (62%) | 14 (48%) | |
| Not resident in Scotland | 7 | 0 | |
| Years of education | 16 (2.6) [10, 21] | 17.3 (2.9) [12, 24] | 0.025 |
| Mean (SD) [minimum, maximum] | |||
| Rugby history | |||
| Ever played rugby (n %) | 52 (100%) | 19 (63%) | NA† |
| Number years rugby playing | |||
| Mean (SD) [minimum, maximum] | 22.4 (5.0) [8, 33] | 8.4 (8.2) [1, 27*] | NA† |
| Age when stopped playing | |||
| Mean (SD) [minimum, maximum] | 33.2 (4.1) [24, 44] | 19.9 (6.7) [9, 34*] | NA† |
| Years since stopped playing | |||
| Mean (SD) [minimum, maximum] | 20.3 (12.8) [1, 48] | 34.3 (10.53) [0, 16*] | NA† |
| Position played3 | NA† | ||
| Forward | 21 (40%) | 12 (63%) | |
| Back | 31 (60%) | 4 (21%) | |
| Not specified | 0 | 3 (16%) | |
*All regression models were adjusted for age and SIMD except age which was adjusted for SIMD only.
†Statistical comparisons between groups are not appropriate as RIRP are expected to have more rugby playing experience than controls.
NA, not available; RIRP, retired international rugby players; SIMD, Scottish Index of Multiple Deprivation 2012.