Total incident THR at follow up* | THR/ROA† | OR (95% CI) | |
---|---|---|---|

*Number of incident THR at follow up predicted by each definition/number ROA cases at baseline, as defined by each definition of hip ROA. | |||

†Number of cases of THR predicted by each definition/number of ROA cases defined by each definition. | |||

CI, confidence interval; OR, odds ratio; ROA, radiological osteoarthritis. | |||

Kellgren and Lawrence (⩾grade 2) | |||

Right | 57 | 33/154 (21.4) | 30.6 (17.5 to 53.5) |

Left | 42 | 22/110 (20.0) | 34.3 (18.1 to 65.2) |

MJS (⩽2.5 mm) | |||

Right | 57 | 26/151 (17.2) | 18.6 (10.7 to 32.3) |

Left | 42 | 19/123 (15.4) | 22.6 (11.8 to 43.0) |

Croft grade (⩾grade 3) | |||

Right | 57 | 46/673 (6.8) | 16.0 (8.0 to 31.8) |

Left | 42 | 28/717 (3.9) | 6.7 (3.4 to 12.9) |