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One year test-retest reliability of the Korea Sasang constitutional diagnostic questionnaire (KS-15) in university students

  • Journal of Sasang Constitution and Immune Medicine
  • Abbr : J Sasang Constitut Med
  • 2019, 31(2), pp.12-21
  • DOI : 10.7730/JSCM.2019.31.2.12
  • Publisher : The Society of Sasang Constitution and Immune Medicine
  • Research Area : Medicine and Pharmacy > Korean Medicine
  • Received : June 10, 2019
  • Accepted : June 25, 2019
  • Published : June 30, 2019

Kwang-Ho Bae 1,  Kim Sang-Hyuk 1,  Go, Ho Yeon ORD ID 2,  Ki-Hyun Park 1,  Lee Siwoo 1,  Lee Soo-Jin 3

1한국한의학연구원
2세명대학교
3상지대학교

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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.

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