Evidence map›Paper›PMID 40498727›Full record

ArticlePloS one2025

Global burden of knee osteoarthritis from 1990 to 2021: Trends, inequalities, and projections to 2035.

Junjie Chen, Xianshuai Chen, Tianshu Wang, Ming Li, Huanhuan Dai, Shuangshuang Shang, Lili Cheng, Zhongfu Tang, Sidi Liu, Chuanbing Huang

Abstract read
In one paragraph

Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

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  16. [Analysis of current status and trends of disease burden of knee osteoarthritis in China, 1990-2023].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Junjie ChenThe First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China.
Xianshuai ChenDepartment of Orthopaedics, Sports Trauma and Arthroscopic Surgery, Bozhou People's Hospital, Bozhou, China.
Tianshu WangThe First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China.
Ming LiCenter for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China.
Huanhuan DaiCollege of Biology and Food Engineering of Hefei Normal University, Hefei, China.
Shuangshuang ShangCenter for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China.
Lili ChengThe First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China.
Zhongfu TangThe First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China.
Sidi LiuCenter for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China.
Chuanbing HuangCenter for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China.ORCID 0009-0005-1322-2651

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTo present the global, regional, and national burden of knee osteoarthritis (KOA) and its causative factors, categorized by age, gender, and sociodemographic indices from 1990 to 2021, and to project future trends to 2035.

methodsA comprehensive analysis of KOA epidemiology was conducted using data from the 2021 Global Burden of Disease Study (GBD). The study examined change trends in KOA burden between 1990 and 2021, including prevalence, incidence, disability-adjusted life years (DALYs), and associated risk factors. Health inequality analyses were performed using slope index of inequality (SII) and concentration index (CI). Decomposition analysis was conducted to understand the contributions of population growth, aging, and epidemiological changes to the increasing burden. Future projections were made for global, Chinese, and Indian trends to 2035.

resultsIn 2021, the global prevalence of KOA was 374.7 million cases, with an annual incidence of 3.0846 million cases, totaling 12.01 million DALYs. Age-standardized rates for prevalence, incidence, and DALYs increased by 8.3%, 7.1%, and 8.2% respectively since 1990. Health inequality analyses revealed widening disparities across SDI levels, with SII for crude incidence rates increasing from 251 to 400 per 100,000 between 1990 and 2021. Decomposition analysis showed population growth as the primary driver of increased burden globally (75.07% for DALYs), with variations across SDI regions. Projections to 2035 indicate substantial increases in global burden, with incidence expected to rise by 33.6%, prevalence by 43.8%, and DALYs by 41.4%. China and India show differing patterns in projected burden increases.

conclusionKOA remains a significant public health concern with increasing burden and widening health inequalities. The projected increases highlight the need for targeted interventions, especially in rapidly growing populations. Preventive measures should focus on reducing high BMI, implementing gender-specific treatments, and addressing regional disparities to mitigate the future burden of KOA.

Indexed as

Global Burden of DiseaseOsteoarthritis, KneeAdolescentAdultAgedAged, 80 and overCost of IllnessDisability-Adjusted Life YearsFemaleGlobal HealthHealth Status DisparitiesHumansIncidenceIndiaMaleMiddle Aged

Identifiers

PMID40498727
PMCPMC12157667

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.