Journal of Society of Preventive Korean Medicine (대한예방한의학회지)

Society of Preventive Korean Medicine (대한예방한의학회)
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A study about the Life Expectancy, Quality of Life and QALYs of Stroke patients

뇌졸중 환자의 기대여명과 삶의 질, QALY에 대한 연구

  • Kim, Nam-Kwen (Opthalmology Otolaryngology & Dermatology, Wonkwang Univ. Sanbon Oriental Medical Center) ;
  • Lee, Dong-Hyo (Office of Health Technology Evaluation, National Evidence-based Healthcare Collaborating Agency) ;
  • Jo, Ga-Won (Opthalmology Otolaryngology & Dermatology, Wonkwang Univ. Sanbon Oriental Medical Center) ;
  • Seo, Eun-Sung (Graduate school of Food and Nutrition department, Seoul National University)
  • 김남권 (원광대학교 한의과대학 안이비인후피부과학 교실) ;
  • 이동효 (한국보건의료연구원 의료기술분석실) ;
  • 조가원 (원광대학교 한의과대학 안이비인후피부과학 교실) ;
  • 서은성 (서울대학교 생활과학대학 식품영양학 교실)
  • Received : 2012.10.04
  • Accepted : 2012.12.08
  • Published : 2012.12.31
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Abstract

Objective : Only a few studies have investigated the life expectance and health related quality of life (HRQOL) about stroke patients. The purpose of this study is to analyze the life expectancy, preference based quality of life(QOL) and quality adjusted life years(QALYs) of stroke patients. Methods : We used data of 10,533 adults from 4th Korean national health and nutritional examination survey 2009 for evaluating HRQOL of stroke patients. We also analyzed the life expectancy for stroke patients using life table from national public health data. Finally we calculated the QALYs with and without stroke conditions and assumed the difference of QALYs. Results : The mean age of stroke patients was assumed to be 65. Lower income and less educated groups were prone to be exposed to the stroke conditions. Common comorbidities of stroke patients were ischemic heart attack, hypertension, diabetes and hyperlipidemia. The proportions of participants who reported problems in each of the five EQ-5D dimensions increased significantly at chronic stroke group. Participants with chronic stroke conditions had an almost 6-fold higher risk of impaired health utility(the lowest quartile of EQ-5D utility score) compared with non stroke participants, after adjustment of age, gender, income, education, comorbidity variables. The differences of life expectancy and QALYs between non-stroke and stroke group from the age of 65 till death were assumed to be 0.767 year and 3.103 QALYs. Conclusions : Although the authors analyzed the affecting factors of QOL and assumed the differences of life expectance and QALYs about stroke patients using domestic national data and statistic references, well designed cohort studies should be needed to prove the causal effects of affecting factors and to assume more correct QALY differences.

Keywords

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