Table 1 Eligibility criteria for inclusion of studies
Parameter | Inclusion criteria | Exclusion criteria |
|---|---|---|
Participants | • Adults aged ≥ 18 years • Overweight and/or obesity • Awaiting elective arthroplasty surgery | • Undergoing non-arthroplasty surgery |
Intervention | • Weight‐loss intervention, including (but not limited to): dietary modification, caloric restriction, meal replacement, medication, bariatric surgery) | • No well-defined weight-loss intervention reported |
Comparator | • participants underwent usual or standard care | • Control groups that prescribed specific preoperative weight‐loss interventions were excluded |
Outcomes | Primary outcomes • Surgical outcomes (patient-reported outcome and postoperative complications) • Secondary outcomes • Body weight change • Body mass index change • Acute length of hospital stay | |
Study design | • Prospective randomized controlled trials | • Retrospective studies • Studies retrospectively assessing registry data • Cohort or database studies |