Journal of Sasang Constitutional Medicine (사상체질의학회지)

The Society Of Sasang Constitutional Medicine (사상체질의학회)
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One year test-retest reliability of the Korea Sasang constitutional diagnostic questionnaire (KS-15) in university students

1년간 검사-재검사법을 통한 단축형 사상체질 진단 설문 (KS-15)의 신뢰도 평가

  • Bae, Kwang-Ho (Future Medicine Division, Korea Institute of Oriental Medicine) ;
  • Kim, Sang-Hyuk (Future Medicine Division, Korea Institute of Oriental Medicine) ;
  • Go, Ho-Yeon (Department of Internal Medicine, College of Korean Medicine, Semyung University) ;
  • Park, Ki-Hyun (Future Medicine Division, Korea Institute of Oriental Medicine) ;
  • Lee, Siwoo (Future Medicine Division, Korea Institute of Oriental Medicine) ;
  • Lee, Soojin (Department of Physiology, College of Korean Medicine, Sangji University)
  • 배광호 (한국한의학연구원 미래의학부) ;
  • 김상혁 (한국한의학연구원 미래의학부) ;
  • 고호연 (세명대학교 한의과대학 한방내과학교실) ;
  • 박기현 (한국한의학연구원 미래의학부) ;
  • 이시우 (한국한의학연구원 미래의학부) ;
  • 이수진 (상지대학교 한의과대학 생리학교실)
  • Received : 2019.06.10
  • Accepted : 2019.06.25
  • Published : 2019.06.30
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Abstract

Objectives This study was aimed to evaluate the one-year test-retest reliability of the Korea Sasang constitutional diagnostic questionnaire (KS-15) in university students. Methods In March 2017, and March 2018, a survey was sent by email to 583 Korean medicine students in two universities. Of these, 149 (25.6%) participated and completed the first survey (test) and second survey (retest). Participants responded to the KS-15 questionnaire and the general characteristics including their age, sex, height, and weight. Cohen's kappa Spearman's rank correlation coefficient and agreement rate (%) were used for the test-retest reliability for each question item and the diagnosis of the Sasang constitution. The independent T-test was used to determine the difference in BMI between Sasang constitutional accordance and discordance groups obtained from the test-retest results of KS-15. Results The agreement of Sasang constitutional diagnosis was 75.8% (Kappa = 0.618), indicating that KS-15 had a certain level (substantial) of test-retest reliability. However, the kappa of each item was 0.161 ~ 0.620, which showed a large difference between the items. The agreements of each Sasang constitution were 85.1% for Taeeumin, 73.6% for Soeumin, and 58.6% for Soyangin. There was no significant difference in the BMI change between Sasang constitutional accordance and discordance groups in the test-retest. Conclusions These results indicate KS-15 has a reliable one-year test-retest reliability. However, further studies will be required to improve reliability, validity and application across different age ranges for the practical utilization of KS-15.

Keywords

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Figure 1. The test-retest reliability according to sasang constitutional probability score

Table 1. Participants’ General Characteristics at the Baseline (2017)

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Table 2. Test-Retest Agreements and Kappa Reliability Analysis of KS-15

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Table 3. Test-Retest Rank Correlation Coefficients of KS-15

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Table 4. Test-retest Agreements According to Sasang Constitution

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Table 5. BMI Changes between Sasang Constitutional Accordance and Discordance Group

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