Concordance of Chronotype Categorisations Based on Dim Light Melatonin Onset, the Morningness-Eveningness Questionnaire, and the Munich Chronotype Questionnaire
Chronotype reflects circadian timing and can be determined from biological markers (e.g., dim light melatonin onset; DLMO), or questionnaires (e.g., Morningness-Eveningness Questionnaire; MEQ, or Munich Chronotype Questionnaire; MCTQ). The study’s aim was to quantify concordance between chronotype c...
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| Format: | Article |
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MDPI AG
2021-06-01
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| Series: | Clocks & Sleep |
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| Online Access: | https://www.mdpi.com/2624-5175/3/2/21 |
| _version_ | 1797529916288270336 |
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| author | Andrew M. Reiter Charli Sargent Gregory D. Roach |
| author_facet | Andrew M. Reiter Charli Sargent Gregory D. Roach |
| author_sort | Andrew M. Reiter |
| collection | DOAJ |
| description | Chronotype reflects circadian timing and can be determined from biological markers (e.g., dim light melatonin onset; DLMO), or questionnaires (e.g., Morningness-Eveningness Questionnaire; MEQ, or Munich Chronotype Questionnaire; MCTQ). The study’s aim was to quantify concordance between chronotype categorisations based on these measures. A total of 72 (36f) young, healthy adults completed the MEQ and MCTQ and provided saliva samples hourly in dim light during the evening in a laboratory. The corrected midpoint of sleep on free days (MSF<sub>sc</sub>) was derived from MCTQ, and tertile splits were used to define early, intermediate and late DLMO-CT, MEQ-CT and MSF<sub>sc</sub>-CT chronotype categories. DLMO correlated with MEQ score (<i>r</i> = −0.25, <i>p</i> = 0.035) and MSF<sub>sc</sub> (<i>r</i> = 0.32, <i>p</i> = 0.015). For early, intermediate and late DLMO-CT categories, mean(SD) DLMO were 20:25(0:46), 21:33(0:10) and 23:03(0:53). For early, intermediate and late MEQ-CT categories, mean(SD) MEQ scores were 60.5(5.3), 51.4(2.9) and 40.8 (5.0). For early, intermediate and late MSF<sub>sc</sub>-CT categories, mean(SD) MSF<sub>sc</sub> were 03:23(0:34), 04:37(0:12) and 05:55(0:48). Low concordance of categorisations between DLMO-CT and MEQ-CT (37%), and between DLMO-CT and MSF<sub>sc</sub>-CT (37%), suggests chronotype categorisations depend on the measure used. To enable valid comparisons with previous results and reduce the likelihood of misleading conclusions, researchers should select measures and statistical techniques appropriate to the construct of interest and research question. |
| first_indexed | 2024-03-10T10:20:40Z |
| format | Article |
| id | doaj.art-a1ef0b3f7b3c48f0a67496243c5102eb |
| institution | Directory Open Access Journal |
| issn | 2624-5175 |
| language | English |
| last_indexed | 2024-03-10T10:20:40Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Clocks & Sleep |
| spelling | doaj.art-a1ef0b3f7b3c48f0a67496243c5102eb2023-11-22T00:26:30ZengMDPI AGClocks & Sleep2624-51752021-06-013234235010.3390/clockssleep3020021Concordance of Chronotype Categorisations Based on Dim Light Melatonin Onset, the Morningness-Eveningness Questionnaire, and the Munich Chronotype QuestionnaireAndrew M. Reiter0Charli Sargent1Gregory D. Roach2Appleton Institute for Behavioural Science, Central Queensland University, Goodwood, SA 5034, AustraliaAppleton Institute for Behavioural Science, Central Queensland University, Goodwood, SA 5034, AustraliaAppleton Institute for Behavioural Science, Central Queensland University, Goodwood, SA 5034, AustraliaChronotype reflects circadian timing and can be determined from biological markers (e.g., dim light melatonin onset; DLMO), or questionnaires (e.g., Morningness-Eveningness Questionnaire; MEQ, or Munich Chronotype Questionnaire; MCTQ). The study’s aim was to quantify concordance between chronotype categorisations based on these measures. A total of 72 (36f) young, healthy adults completed the MEQ and MCTQ and provided saliva samples hourly in dim light during the evening in a laboratory. The corrected midpoint of sleep on free days (MSF<sub>sc</sub>) was derived from MCTQ, and tertile splits were used to define early, intermediate and late DLMO-CT, MEQ-CT and MSF<sub>sc</sub>-CT chronotype categories. DLMO correlated with MEQ score (<i>r</i> = −0.25, <i>p</i> = 0.035) and MSF<sub>sc</sub> (<i>r</i> = 0.32, <i>p</i> = 0.015). For early, intermediate and late DLMO-CT categories, mean(SD) DLMO were 20:25(0:46), 21:33(0:10) and 23:03(0:53). For early, intermediate and late MEQ-CT categories, mean(SD) MEQ scores were 60.5(5.3), 51.4(2.9) and 40.8 (5.0). For early, intermediate and late MSF<sub>sc</sub>-CT categories, mean(SD) MSF<sub>sc</sub> were 03:23(0:34), 04:37(0:12) and 05:55(0:48). Low concordance of categorisations between DLMO-CT and MEQ-CT (37%), and between DLMO-CT and MSF<sub>sc</sub>-CT (37%), suggests chronotype categorisations depend on the measure used. To enable valid comparisons with previous results and reduce the likelihood of misleading conclusions, researchers should select measures and statistical techniques appropriate to the construct of interest and research question.https://www.mdpi.com/2624-5175/3/2/21chronotypeconcordanceDLMOMEQMCTQcategorisation |
| spellingShingle | Andrew M. Reiter Charli Sargent Gregory D. Roach Concordance of Chronotype Categorisations Based on Dim Light Melatonin Onset, the Morningness-Eveningness Questionnaire, and the Munich Chronotype Questionnaire Clocks & Sleep chronotype concordance DLMO MEQ MCTQ categorisation |
| title | Concordance of Chronotype Categorisations Based on Dim Light Melatonin Onset, the Morningness-Eveningness Questionnaire, and the Munich Chronotype Questionnaire |
| title_full | Concordance of Chronotype Categorisations Based on Dim Light Melatonin Onset, the Morningness-Eveningness Questionnaire, and the Munich Chronotype Questionnaire |
| title_fullStr | Concordance of Chronotype Categorisations Based on Dim Light Melatonin Onset, the Morningness-Eveningness Questionnaire, and the Munich Chronotype Questionnaire |
| title_full_unstemmed | Concordance of Chronotype Categorisations Based on Dim Light Melatonin Onset, the Morningness-Eveningness Questionnaire, and the Munich Chronotype Questionnaire |
| title_short | Concordance of Chronotype Categorisations Based on Dim Light Melatonin Onset, the Morningness-Eveningness Questionnaire, and the Munich Chronotype Questionnaire |
| title_sort | concordance of chronotype categorisations based on dim light melatonin onset the morningness eveningness questionnaire and the munich chronotype questionnaire |
| topic | chronotype concordance DLMO MEQ MCTQ categorisation |
| url | https://www.mdpi.com/2624-5175/3/2/21 |
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