Annals of Occupational and Environmental Medicine

The Korean Society of Occupational & Environmental Medicine (대한직업환경의학회)
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A Pilot Study on the Validity and Reliability of the Korean Version of the Oswestry Disability Index in a Farming Community

일지역 농업인을 대상으로 한 한국판 Oswestry Disability Index의 신뢰도와 타당도 예비 연구

  • Yang, No-Yul (Department of Rehabilitation, The Graduate School, Yonsei University) ;
  • Park, Hae-Yean (Department of Rehabilitation, The Graduate School, Yonsei University) ;
  • Kim, Jin-Su (Department of Rehabilitation, The Graduate School, Yonsei University) ;
  • Lee, Joo-Hyun (Department of Rehabilitation, The Graduate School, Yonsei University) ;
  • Park, Soo-Hyun (Department of Occupational Therapy, College of Health Sciences, Yonsei University) ;
  • Jung, Min-Ye (Department of Occupational Therapy, College of Health Sciences, Yonsei University) ;
  • Koh, Sang-Baek (Department of Preventive Medicine and Institute of Occupational and Environmental Medicine, Yonsei University Wonju College of Medicine)
  • 양노열 (연세대학교 대학원 재활학과) ;
  • 박혜연 (연세대학교 대학원 재활학과) ;
  • 김진수 (연세대학교 대학원 재활학과) ;
  • 이주현 (연세대학교 대학원 재활학과) ;
  • 박수현 (연세대학교 보건과학대학 작업치료학과) ;
  • 정민예 (연세대학교 보건과학대학 작업치료학과) ;
  • 고상백 (연세대학교 원주의과대학 예방의학교실, 직업 및 환경의학연구소)
  • Received : 2010.03.29
  • Accepted : 2010.09.08
  • Published : 2010.12.31
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Abstract

Objectives: The Korean version of the Oswestry Disability Index (ODI) is the most widely used tool validated instrument for measuring and the level of disability associated with low back disorders. We wanted to validate use of the Korean version of the ODI in Korean farmers with low back pain. Methods: The object of this study was to examine the reliability and validity of the Korean version of the ODI. The Korean version was tested on 53 farmers (62.3${\pm}$10.3 years of age) with low back-related disorders. We investigated the Test-retest reliability, internal consistency, and construct validity of the ODI. The Test-retest reliability was assessed in 30 farmers within a time interval of approximately 14 to 18 days. Differences between the Korean version of the ODI and the Short Form 12 (SF-12), which includes 8 domains (general health, physical functioning, role-physical limitation, bodily pain, role-emotional limitation, mental health, vitality, social functioning) were analyzed for construct validity. The correlation of the Korean version of the ODI with the SF-12 was analyzed, as well. Results: The intra-class correlation coefficient of test-retest reliability was 0.854. Reliability estimated by the internal consistency reached a Cronbach's alpha of 0.879. The correlation between 7 domains of the SF-12 except for the mental health domain and the Korean version of the ODI was statistically significant (p<0.05). Four domains (general health, physical functioning, role-physical limitation, bodily pain) that measured physical status all showed high correlations (p<0.01), as did a domain that measured mental status (role-emotional limitation) (p<0.01). Conclusions: The results showed that the Korean version of the ODI is a reliable and valid instrument to measure the level of disability in Korean farmers with low back-related disorders. The use of this instrument is recommended for future clinical trials in Korea.

목적: 현재 요통장애 수준 측정을 위해 국내에서 널리 사용되는 ODI는 표준화된 신뢰성 있는 도구이다. 본 연구에서는 한국 농업인을 대상으로 한국판 ODI의 신뢰도와 타당도를 검증하여 농촌지역에서의 임상적 활용성을 검토하고자 하였다. 방법: 본 연구에서는 요통장애를 진단받고 현재 농업에 종사하고 있는 농업인 53명(62.3${\pm}$10.3세)을 대상으로 하였다. 한국판 ODI의 신뢰도를 평가하기 위해 내적일치도와 검사-재검사 신뢰도를 사용하였고, 타당도를 평가하기 위해 구성타당도를 구하였다. 전체대상자 중 30명은 검사-재검사 신뢰도 산출을 위해 동일한 설문을 14~18일 후에 수행하였다. 구성타당도는 신체적, 정신적 건강 수준을 측정하는 SF-12의 각 영역과 한국판 ODI의 상관 관계 분석을 통해 실시되었다, 결과: 한국판 ODI의 내적일치도 Cronbach's ${\alpha}$는 0.879였고, 검사-재검사 신뢰도의 급간내 상관계수는 0.854로 나타났다. SF-12의 8개 영역와 한국판 ODI의 피어슨 상관계수는 정신 건강 영역을 제외한 7개 영역에서 통계적으로 유의하였는데(p<0.05), 이 중 신체적 수준은 모든 영역에서 모두 높은 상관관계를 보였고, 정신적 수준은 1개 영역에서만 높은 상관관계를 나타내었다(p<0.01). 결 론 : 농업인의 신뢰성 있는 요통장애 수준 측정 검사도구를 국내에서는 처음으로 본 연구를 통해 제시한 것으로 생각된다. 한국판 ODI는 농업인의 요통장애 측정에 신뢰성과 타당성을 갖춘 검사도구이며, 향후 임상연구에 서는 농업인에게 한국판 ODI의 사용을 권장한다.

Keywords

References

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