Characteristics | Total* | Medical assessors (n=45) | Regular practice GPs (n=223) | P value† |

n (%) | n (%) | n (%) | ||

Gender (n=266) | 0.01 | |||

Male | 177 (66.5) | 35 (81.4) | 142 (63.7) | |

Female | 89 (33.5) | 8 (18.6) | 81 (36.3) | |

Age group (years) (n=266) | 0.04 | |||

<45 | 56 (21.1) | 7 (15.6) | 49 (22.2) | |

45–54 | 65 (24.4) | 8 (17.8) | 57 (25.8) | |

55–64 | 97 (36.5) | 19 (42.2) | 78 (35.3) | |

≥65 | 48 (18.0) | 11 (24.4) | 37 (16.7) | |

Location of practice (n=263) | <0.001 | |||

Urban | 196 (74.5) | 44 (97.8) | 152 (69.7) | |

Rural | 67 (25.5) | 1 (2.2) | 66 (30.3) |

Median (IQR) | Median (IQR) | Median (IQR) | ||

Number of half days worked per week (n=261) | 8 (3) | 9 (2) | 8 (3) | 0.03 |

Number of fitness-to-drive assessments per week (n=264) | 2 (2) | 5 (3) | 1 (1) | <0.001 |

Number of procedures often or always performed (n=209) | 14 (5) | 15 (4) | 14 (5) | 0.56 |

*Numbers do not add to 268 because of missing data.

†Design-based

*F*tests (corrected weighted Pearson χ^{2}tests) for categorical variables and Wilcoxon rank-sum tests for numerical data.GPs, general practitioners.