Table 2 Inclusion and exclusion criteria for included studies

Studies written in English

Studies with cohorts in England, Scotland, Wales and Northern Ireland

Studies focusing on total hip replacement or with specific data on total hip replacement

Publications between 16th December 2005 and 2021^a

Types of studies: any observational study (cross-sectional studies, ecological studies, case-control studies, longitudinal studies)

Peer-reviewed literature

Non-English language studies

Studies without UK-based cohorts

Studies investigating total hip replacement in combination with other diseases with no specific data or conclusions based on total hip replacement alone

Studies published prior to 16th December 2005^a

Editorials, comments or review articles