Pooled and age-stratum-specific multiple linear regression results for predicting the Blom rank transformed composite UFOV score at 6–8 weeks post-randomisation
| Unstandardised regression coefficient b | p Value | Lower 95% CI | Higher 95% CI | |
| Pooled analysis with both age strata (N=620) | ||||
| Intercept | 0.415 | 0.001 | 0.309 | 0.520 |
| Any Road Tour training (N=444) | 0.558 | 0.001 | −0.433 | −0.683 |
| On-site attention control (N=176) | 0.000 | – | – | – |
| Blom rank transformed UFOV at randomisation | 0.643 | 0.001 | 0.585 | 0.700 |
| R squared | 0.491 | 0.001 | ||
| Separate analysis in the ≥65 age stratum (N=209) | ||||
| Intercept | 0.518 | 0.001 | 0.343 | 0.694 |
| Any Road Tour training (N=154) | −0.479 | 0.001 | −0.290 | −0.668 |
| On-site attention control (N=55) | 0.000 | – | – | – |
| Blom rank transformed UFOV at randomisation | 0.650 | 0.001 | 0.547 | 0.754 |
| R squared | 0.482 | 0.001 | ||
| Separate analysis in the 50–64 age stratum (N=411) | ||||
| Intercept | 0.352 | 0.001 | 0.218 | 0.486 |
| Any Road Tour training (N=292) | −0.626 | 0.001 | −0.467 | −0.785 |
| On-site attention control (N=119) | 0.000 | – | – | – |
| Blom rank transformed UFOV at randomisation | 0.556 | 0.001 | 0.479 | 0.634 |
| R squared | 0.413 | 0.001 | ||
UFOV, Useful Field of View.