Global, regional prevalence, incidence and risk factors of knee osteoarthritis in population-based studies

Abstract

BACKGROUND: Knee osteoarthritis (OA) is a major cause of disability in the elderly, however, there are few studies to estimate the global prevalence, incidence, and risk factors of knee OA. METHODS: For this study, we searched PUBMED, EMBASE and SCOPUS from inception to April 4, 2020, without language restriction. We identified eligible studies with information on the prevalence or incidence of knee OA in population-based observational studies and extracted data from published reports. We did random-effects meta-analysis to generate estimates. This study was registered with PROSPERO (CRD42020181035). FINDINGS: <0⋅00), respectively. INTERPRETATION: Our study provides the global prevalence (16⋅0% [95% CI, 14⋅3%-17⋅8%]) and incidence (203 per 10,000 person-years [95% CI, 106-331]) of knee OA. These findings can be used to better assess the global health burden of knee OA. Further prospective cohort studies are warranted to identify modifiable risk factors for providing effectively preventive strategies in the early stages of the disease. FUNDING: This work was supported by grants from the National Natural Science Foundation of China (nos. 81772384 and 81572174).

The authors' abstract, as published at the source. EClinicalMedicine, 2020 · DOI ↗