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Development and validation of Yin-Deficiency Questionnaire
Sangjae Lee1, Jongbae Park, Hyangsook Lee
1Institute of Korean Medicine for Healthy Living, Seoul, South Korea.
The American Journal of Chinese Medicine
|February 1, 2007
Summary
A new 10-item questionnaire aids Traditional Chinese Medicine diagnosis of Yin-Deficiency Syndrome (Yin-DS). The Yin-Deficiency Questionnaire 1 (Yin-DQ1) demonstrates high reliability and validity for identifying Yin-DS.
Area of Science:
- Integrative Medicine
- Diagnostic Tool Development
- Traditional Chinese Medicine
Background:
- Yin-Deficiency Syndrome (Yin-DS) is a common diagnosis in Traditional Chinese Medicine (TCM).
- Objective diagnostic tools are needed to complement TCM pattern differentiation for Yin-DS.
Purpose of the Study:
- To develop and validate the Yin-Deficiency Questionnaire 1 (Yin-DQ1) as an adjunct for TCM diagnosis of Yin-DS.
- To assess the psychometric properties of the Yin-DQ1, including reliability and validity.
Main Methods:
- The Yin-DQ1, a 10-item self-report questionnaire, was developed.
- Discriminant validity and factorial validity were assessed in 79 healthy volunteers and 44 patients with Yin-DS.
- Test-retest reliability was evaluated in 83 healthy volunteers.
Main Results:
- The Yin-DQ1 demonstrated high internal consistency (Cronbach's alpha = 0.8615).
- Test-retest reliability was good (Spearman's rho = 0.54–0.79, p < 0.01).
- Factor analysis supported a two-factor structure explaining 51.62% of the variance. Patients with Yin-DS scored significantly higher than healthy controls.
Conclusions:
- The Yin-DQ1 exhibits good internal consistency, test-retest reliability, and discriminant validity.
- The questionnaire is a promising adjunct tool for TCM diagnosis of Yin-DS.
- Further research is recommended to establish optimal cut-off scores and clinical trial utility.
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