Outcome variable | Statistical method | Effect measure |

Inverse variance | Mean difference | |

Surgical time complications | ||

Intraoperative | Peto | Peto OR |

Postoperative | Peto | Peto OR |

Total | Peto | Peto OR |

From randomised clinical trial | Peto | Peto OR |

Functional outcome | ||

Preoperative | Inverse variance | Std mean difference |

Postoperative | Inverse variance | Std mean difference |

Radiographic outcome | ||

Limb length discrepancy (LLD) | Inverse variance | Mean difference |

LLD >10 mm | Peto | Peto OR |

Cup placement | Inverse variance | OR |

Heterotopic ossification | Peto | Peto OR |