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 |
| Road Tour on-site (N=139) | −0.457 | 0.001 | −0.299 | −0.616 |
| Road Tour on-site with future boosters (N=136) | −0.585 | 0.001 | −0.426 | −0.745 |
| On-site attention control (N=174) | 0.000 | – | – | – |
| Road Tour at home (N=171) | −0.629 | 0.001 | −0.469 | −0.769 |
| Blom rank transformed UFOV at randomisation | 0.642 | 0.001 | 0.585 | 0.699 |
| R squared | 0.495 | 0.001 | ||
| Separate analysis in the ≥65 age stratum (N=209) | ||||
| Intercept | 0.520 | 0.001 | 0.343 | 0.697 |
| Road Tour on-site (N=47) | −0.465 | 0.001 | −0.226 | −0.704 |
| Road Tour on-site with future boosters (N=46) | −0.480 | 0.001 | −0.240 | −0.721 |
| On-site attention control (N=55) | 0.000 | – | – | – |
| Road Tour at home (N=61) | −0.490 | 0.001 | −0.263 | −0.718 |
| Blom rank transformed UFOV at randomisation | 0.648 | 0.001 | 0.542 | 0.697 |
| R squared | 0.482 | 0.001 | ||
| Separate analysis in the 50–64 age stratum (N=411) | ||||
| Intercept | 0.353 | 0.001 | 0.219 | 0.486 |
| Road Tour on-site (N=92) | −0.483 | 0.001 | −0.280 | −0.685 |
| Road Tour on-site with future boosters (N=90) | −0.665 | 0.001 | −0.462 | −0.869 |
| On-site attention control (N=119) | 0.000 | – | – | – |
| Road Tour at home (N=110) | −0.711 | 0.001 | −0.519 | −0.903 |
| Blom rank transformed UFOV at randomisation | 0.560 | 0.001 | 0.483 | 0.638 |
| R squared | 0.421 | 0.001 | ||
UFOV, Useful Field of View.