Reliability and Validity of Korean Version of the SWAL-QOL

한국판 SWAL-QOL의 신뢰도와 타당도

  • Kim, Se-Yun (Dept. of Occupational Therapy, College of Health & Welfare, Woosuk University) ;
  • Cha, Yu-Jin (Dept. of Occupational Therapy, Semyung University)
  • 김세연 (우석대학교 보건복지대학 작업치료학과) ;
  • 차유진 (세명대학교 작업치료학과)
  • Received : 2014.01.08
  • Accepted : 2014.05.08
  • Published : 2014.05.31


The Purpose of the this study was to identify reliability and validity of the Korean version of the Swallowing Quality of Life questionnaire(KSWAL-QOL). The study was performed in 71 patients diagnosed dysphagia by videofluoroscopy and 80 healthy swallowers. The reliability was good with a Cronbach's ${\alpha}$ and intraclass correlation coefficient of .86~.96 and .80~.93, respectively. The Pearson product moment correlation coefficients between KSWAL-QOL scales ranged from .17~.74 which was showed significant correlation. Healty swallowers scored higher than dysphagic patients on all scales and statistically significant differences were observed across all the scales between healthy swallowers and dysphagic patients(p<.01). Tube feeders scored lower than non-tube feeders on all scales and statistically significant differences were observed in all the scales except sleep(p<.05). There are significant difference between diet steps in all scales except eating desire, communication, fear and people on diet fourth step feeding had the highest scores on the all scales(p<.05). Because KSWAL-QOL seems to be a reliable and valid tool, it is considered to be appropriate as a tool to measure quality of life of patient with swallowing disorder.

본 연구는 삼킴장애 환자를 대상으로 한국판 SWAL-QOL의 신뢰도와 타당도를 알아보기 위해 실시되었다. 비디오 투시 영상을 통해 삼킴장애로 진단받은 환자 71명과 일반인 80명을 대상으로 하였다. 한국판 SWAL-QOL의 문항내적일치도는 Cronbach's $\alpha$ 값이 .86~.96이었고, 급간내상관계수는 .80~.93으로 신뢰도가 높았다. 한국판 SWAL-QOL의 각 척도간 상관관계를 알아본 결과 피어슨 상관계수는 .17~.74로 모든 척도간에 유의한 상관성을 보였다(p<.05). 삼킴장애군과 정상군간에 한국판 SWAL-QOL을 비교한 결과 모든 척도에서 정상군의 점수가 높았으며 두 그룹간에 유의미한 차이가 있는 것으로 나타났다(p<.01). 관 식이 그룹은 관 식이를 하지 않은 그룹에 비해 모든 척도에서 점수가 낮았으며 수면척도를 제외하고 모든 척도에서 유의한 차이가 있었다(p<.05). 식이단계에 따른 차이를 살펴보면 식이 4단계 환자의 점수가 가장 높았으며, 식사욕구, 의사소통, 두려움 척도를 제외한 모든 척도에서 식이 단계간에 통계적으로 유의한 차이가 있었다(p<.05). 따라서 한국판 SWAL-QOL는 신뢰도와 임상타당도가 높기 때문에 임상에서 삼킴장애 환자의 삶의 질을 측정하는 도구로 사용되는데 적절한 것으로 판단된다.



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