Evidence map›Paper›PMID 32472462›Full record

ArticleClinical rheumatology2020

High prevalence of patellofemoral osteoarthritis in China: a multi-center population-based osteoarthritis study.

Zhanglai Li, Qiang Liu, Changsheng Zhao, Xiwu Gao, Wenchao Han, Joshhua J Stefanik, Qunhua Jin, Jianhao Lin, Yuqing Zhang

Abstract read
PubMed Publisher
In one paragraph

Article in Clinical rheumatology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.7field-weighted citation impact, top 34% of its field
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

11 citing papers in PubMed, 13 citations in OpenAlex.

  1. Reconsideration of radiographic axial imaging techniques for the evaluation of patellofemoral alignment: skyline view vs. merchant view.Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology · 2026
    Article
  2. Article
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  8. Epidemiology of osteoarthritis.Osteoarthritis and cartilage · 2022
    Review
  9. The emerging roles of NFrontiers in molecular neuroscience · 2022
    Review
  10. [Expert consensus on surgical treatment of patellofemoral osteoarthritis].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021
    Article
  11. Novel Insights Into the Multifaceted Functions of RNA nFrontiers in cell and developmental biology · 2021
    Review
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

9 authors at 8 institutions in 2 countries.

Zhanglai LiFuzhou Second Hospital Affiliated to Xiamen University, Fuzhou, China.
Qiang LiuArthritis Clinic and Research Center, Peking University People's Hospital, Peking University, Beijing, 100044, China.
Changsheng ZhaoPeking University International Hospital, Peking University, Beijing, China.
Xiwu GaoThe General hospital of Ningxia Medical University, Yinchuan, China.
Wenchao HanChinese Medicine Hospital of Puyang Henan, Puyang, China.
Joshhua J StefanikDepartment of Physical Therapy, Movement & Rehabilitation Sciences, Northeastern University, Boston, MA, USA.
Qunhua JinThe General hospital of Ningxia Medical University, Yinchuan, China. jinqunhua@sina.com.
Jianhao LinArthritis Clinic and Research Center, Peking University People's Hospital, Peking University, Beijing, 100044, China. linjianhao@pkuph.edu.cn.
Yuqing ZhangDivision of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Peking University · CNAnyang Hospital of Traditional Chinese Medicine · CNFuzhou Second Hospital · CNMassachusetts General Hospital · USNingxia Medical University · CNNingxia Medical University General Hospital · CNNortheastern University · USPeking University People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo describe the prevalence and risk factors of patellofemoral osteoarthritis (PFOA) among Chinese residents.

methodsA multi-center population-based osteoarthritis study was conducted in 2014. Residents aged ≥ 50 years old were recruited using a cluster sampling method. Subjects completed a home interview and physical examination and had skyline view of radiographs at patellofemoral (PF) joints. Radiographs were read by two trained musculoskeletal researchers, and discordance of a subject's PFOA status between two readers was adjudicated with a third musculoskeletal researcher present. Radiographic OA at PF joint was defined if osteophytes (OST) score was ≥ 2 or if joint space narrowing (JSN) score was ≥ 2 with concurrent grade 1 OST in the PF joint.

resultsOf 3446 subjects (63.0% women) included in this analysis, the prevalence of radiographic PFOA was 23.9% (20.5% men vs. 25.8% women). Prevalence of lateral radiographic OA was higher than medial radiographic OA at PF joint. Grades of both osteophytes and joint space narrowing in the lateral patellofemoral compartment were higher than those in the medial patellofemoral compartment (all P values < 0.001). Women, older age, higher BMI, and fewer years of education were significantly associated with higher prevalence of radiographic PFOA, osteophytes, and joint space narrowing.

conclusionPrevalence of radiographic PFOA was high among Chinese population. Key Points • The multi-center population-based osteoarthritis study shows the prevalence of radiographic PFOA was high among Chinese population. • Older age, female gender, obesity, and few years of education were associated with a high risk of PFOA. • Prevalence of lateral radiographic OA was higher than medial radiographic OA at PF joint.

Indexed as

Osteoarthritis, KneeOsteophytePatellofemoral JointAgedChinaFemaleHumansKnee JointMaleMiddle AgedPrevalenceAge distributionChineseOsteoarthritisPatellofemoral jointPrevalence

Identifiers

PMID32472462
OpenAlexW3031959466

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.