Tumur-Ochir, Gantsetseg

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Test-retest reliability of the questionnaire on the screening of sleep disorders
(2021-09-26)
Enkhzaya Batkhuyag
;
Enkhnaran Tumurbaatar
;
Battuvshin Lkhagvasuren
;
Enkh-Uchral Perenleisambuu
;
Enkhjin Bat-Erdene
Sleep is a vital component for maintaining good physical and mental health. When sleep is disordered, it can adversely affect an individual's mental and physical wellbeing. Although a variety of single specific disorder measurements are available for specialized clinicians use across the globe, to date, there are no proper screening instruments available for screening multiple sleep disorders at the primary care level. The purpose of this study is to determine the test-retest reliability of the sleep disorder screening questionnaire (SDSQ) for detecting multiple sleep disorders among the Mongolian population. A total of 366 university students were recruited for participation. SDSQ was administrated to all participants on two occasions two weeks apart. The test-retest reliability intra-class correlation (ICC) and Cronbach's alpha of the SDSQ were calculated. The sample consisted of 194 (53%) females, and 172 (47%) males, with a mean age of 21.6. Observed test-retest reliability was ranged from 0.53 to 0.81. The SDSQ was found to have excellent internal consistency with an alpha=0.950. The external validity of SDSQ revealed strong test-retest reliability in the current study population. The discriminant and convergent validity studies are required for the further improvement of the construct of the SDSQ.
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Psychometric properties of Mongolian versions of the PHQ-9 and GAD-7 in young adults
(2026-06-11)
Oyunsuren Jargalsaikhan
;
Enkhnaran Tumurbaatar
;
Tergelsaran Olzvoi
;
Enkh-Uchral Perenleisambuu
;
Enkhzaya Batkhuyag
The Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7) are standardized self-report tools for screening depressive and anxiety disorders, respectively. While they have been validated in various cultural contexts, their psychometric properties have not been thoroughly evaluated in Mongolia. This study aimed to validate the PHQ-9 and GAD-7 among young adults in Mongolia, ensuring their reliability and efficacy in assessing mental health. A cross-sectional study was conducted with 1,391 young adults (aged 17-29 years). Tests for internal consistency, test-retest reliability, and validity were performed, including exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Convergent validity and cut-off scores were assessed using the Hospital Anxiety and Depression Scale (HADS). Results: Both the PHQ-9 and GAD-7 demonstrated excellent internal consistency (Cronbach’s alpha=0.913 and 0.895, respectively) and good test-retest reliability over time (ICC=0.637 for PHQ-9; ICC=0.782 for GAD-7). Factor analyses confirmed their unidimensional structures, explaining 59.1% and 61.5% of variance, respectively. Unidimensional models showed acceptable goodness-of-fit indices, with RMSEA values of 0.051 for PHQ-9 and 0.047 for GAD-7, indicating a close-to-good fit for both models. Strong correlations were observed between PHQ-9 and GAD-7 scores with HADS scores (p<0.001), indicating good convergent validity. Observed cut-off scores yielded high sensitivity and specificity in this sample population. The final Mongolian versions of the questionnaires exhibited robust psychometric properties. The PHQ-9 and GAD-7 were validated as reliable instruments for screening depression and anxiety among medical students in Mongolia. These findings improve the capacity for early identification and intervention in mental health among this population. However, further research should address limitations related to gender representation and the need for assessment in diverse settings.
Scopus© Citations 1

Tumur-Ochir, Gantsetseg

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