Validity of the Persian version of the Munich ChronoType Questionnaire (MCTQIR)

Feb 23, 2023Sleep & breathing = Schlaf & Atmung

Accuracy of the Persian version of the Munich ChronoType Questionnaire

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Circadian Biology on OpenScience ↗PubMed ↗DOI ↗

Abstract

A sample of 250 Iranian participants demonstrated a significant negative relationship between the Munich ChronoType Questionnaire and the Reduced Morningness-Eveningness Questionnaire, particularly with the mid-sleep time on free days.

The Persian version of the Munich ChronoType Questionnaire (MCTQ) was validated for assessing chronotype.
A significant relationship was found between MCTQ components and the Reduced Morningness-Eveningness Questionnaire (rMEQ).
The mid-sleep time on free days (MSF) exhibited the strongest correlation with rMEQ scores.
No significant relationship was observed between MCTQ parameters and the Epworth Sleepiness Scale (ESS).
Cut-off values for the corrected mid-sleep time (MSFsc) were established to categorize chronotypes.

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PURPOSE: Currently, the most useful questionnaire for determining the chronotype is the Munich ChronoType Questionnaire (MCTQ). It determines chronotype based on sleep-wake behavior on workdays and work-free days and uses the mid-sleep time on free days (MSF), corrected for accumulated sleep debt over the work week to classify chronotype (MSFsc). Our study aimed at validating Persian version of the MCTQ.

METHODS: Participants completed the Persian version of the MCTQ, reduced Morningness-Eveningness Questionnaire (rMEQ), Epworth sleepiness scale (ESS), and demographic characteristics.

RESULTS: The study sample was comprised of 250 Iranian men and women (mean age 34 years, age range 30 to 58 years, 113 men). Results showed that there is a significant negative relationship between the components of MCTQ and rMEQ, and the strongest relationship related to the MSF index. The results also showed that MCTQ parameters were not significantly related to the ESS scale. Cut-off values of MSFsc for chronotype categories were determined by inter-quartile range (Q= 3.44, Q= 4.68, and Q= 5.75). 25% 50% 75%

CONCLUSIONS: Like the MCTQ in other languages, the Persian version of the MCTQ is a reliable tool for assessing chronotype.

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Validity of the Persian version of the Munich ChronoType Questionnaire (MCTQIR)

Abstract

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