Evidence map›Paper›PMID 33329915›Full record

ArticleSafety and health at work2020

Work-Related Risk Factors of Knee Meniscal Tears in Korean Farmers: A Cross-Sectional Study.

Chae Young Hong, Chul Gab Lee, Dong Hwi Kim, Yong Soo Cho, Kweon Young Kim, So Yeon Ryu, Han Soo Song

Open access · goldAbstract read
In one paragraph

Article in Safety and health at work, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. List of occupational diseases among farmers in Korea: a literature review.Annals of occupational and environmental medicine · 2025
    Review
  5. Article
  6. Radiographic hand osteoarthritis in women farmers: characteristics and risk factors.Annals of occupational and environmental medicine · 2022
    Article
  7. Article
  8. Review
  9. Article
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

7 authors at 1 institution in 1 country.

Chae Young HongDepartment of Occupational and Environmental Medicine, Chosun University Hospital, Gwangju, South Korea.
Chul Gab LeeDepartment of Occupational and Environmental Medicine, Chosun University Hospital, Gwangju, South Korea.
Dong Hwi KimDepartment of Orthopedic Medicine, Chosun University Hospital, Gwangju, South Korea.
Yong Soo ChoDepartment of Radiology, Chosun University Hospital, Gwangju, South Korea.
Kweon Young KimDepartment of Rehabilitation Medicine, Chosun University Hospital, Gwangju, South Korea.
So Yeon RyuDepartment of Preventive Medicine, Chosun University Hospital, Gwangju, South Korea.
Han Soo SongDepartment of Occupational and Environmental Medicine, Chosun University Hospital, Gwangju, South Korea.
Chosun University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMeniscal tears are among the major risk factors for knee osteoarthritis progression. This study aimed to investigate the relationship between meniscal tears and work-related factors in the farming occupation.

methodsThe participants included 486 farmers (238 men and 248 women), aged 40-69 years, who were among the 550 farmers registered in the Korea Farmer's Knee Cohort (KFKC). Data such as those on gender, age, body mass index (BMI), mechanical axis, cumulative heavy-lifting working time (CLWT), cumulative squatting working time (CSWT), and previous knee injury history were collected from the questionnaire, along with whole leg radiographic findings. Two radiologists assessed the magnetic resonance images of both knees to confirm the presence of meniscal tears. The factors related to meniscal tears were analyzed by multiple logistic regression.

resultsA total of 54.5% of the farmers (48.7% of men and 60.1% of women) had meniscal tears. These tears were associated with gender, age, and BMI. We also identified an association between meniscal tears and CSWT, an especially important factor in farming [10,000-19,999 working hours, odds ratio = 2.16, 95% confidence interval (CI): 1.14-4.07, ≥20,000 working hours, odds ratio = 2.35, 1.45-3.80]. However, mechanical axis, knee injury history, and CLWT were not significantly related to meniscal tears.

conclusionThis study's findings show that squatting for long periods, as an occupational factor, is related to meniscal tears.

Indexed as

agriculturefarmersmagnetic resonance imagingmeniscustear

Identifiers

PMID33329915
PMCPMC7728704
OpenAlexW3033686694

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.