Marked disability and high use of nonsteroidal antiinflammatory drugs associated with knee osteoarthritis in rural China: a cross-sectional population-based survey
2010

Knee Pain and Osteoarthritis in Rural China

Sample size: 1027 publication 10 minutes Evidence: moderate

Author Information

Author(s): Lin Jianhao, Fransen Marlene, Kang Xiaozheng, Li Hu, Ke Yan, Wang Zhiqiang, Zhang Yuqing, Su Steve

Primary Institution: Arthritis Centre, Peking University People's Hospital

Hypothesis

What is the burden of disability and health services use associated with knee pain in rural China?

Conclusion

Knee pain is highly prevalent in rural northern China, leading to significant disability and increased use of nonsteroidal antiinflammatory drugs.

Supporting Evidence

  • 50% of participants reported knee pain on most days for at least 1 month.
  • 21% of those with knee pain had radiographic evidence of osteoarthritis.
  • Participants with knee pain had significantly greater difficulty in daily activities compared to those without knee pain.
  • 88% of participants with knee pain used NSAIDs for pain relief.

Takeaway

Many older people in rural China have knee pain, which makes it hard for them to do everyday things, and they often take strong painkillers.

Methodology

A population-based cross-sectional survey was conducted among residents aged 50 years and older in Wuchuan County, Inner Mongolia, using questionnaires and knee radiographs.

Potential Biases

Participants were mostly Han Chinese, which may limit the applicability of the findings to other ethnic groups.

Limitations

The study's findings may not be generalizable beyond similar farming communities in Northern China.

Participant Demographics

Participants were primarily farmers, aged 50 years and older, with a majority having less than 7 years of formal education.

Statistical Information

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/ar3212

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