sleep_indices_psqi_mctq_ess
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sleep_indices_psqi_mctq_ess [2020/11/10 16:29] laura [Table] |
sleep_indices_psqi_mctq_ess [2023/02/01 16:17] (current) flip [Table] |
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| The sleep indices can be requested in the Lifelines catalogue or by email (data@lifelines.nl). When this data has been used in your research, you will have to include a reference to the the following paper: | The sleep indices can be requested in the Lifelines catalogue or by email (data@lifelines.nl). When this data has been used in your research, you will have to include a reference to the the following paper: | ||
| - | * //article hasn't been published and will be added// | + | * [[https://doi.org/10.1038/s41562-020-00965-x|Kocevska, D., Lysen, T. S., Dotinga, A., Koopman-Verhoeff, M. E., Luijk, M. P., Antypa, N., ... & Tiemeier, H. (2020). Sleep characteristics across the lifespan in 1.1 million people from the Netherlands, United Kingdom and United States: a systematic review and meta-analysis. Nature human behaviour, 1-10. DOI: https://doi.org/10.1038/s41562-020-00965-x]] |
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| * Component 7: Daytime dysfunction | * Component 7: Daytime dysfunction | ||
| - | Afterwards, the global PSQI score was calculated by adding the seven component scores (cut-off: max 1 missing component score). Resulting in >121,000 calculated PSQI scores (>109,000 with no missing component score). | + | Afterwards, the global PSQI score was calculated by adding the seven component scores (cut-off: max 1 missing component score). This calculation included a weighing component as well, entailing that in case of six components the global PSQI score has been mulitplied by 7/6.\\ |
| + | Result: >121,000 calculated PSQI scores (>109,000 with no missing component score). | ||
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| - A major difficulty in coding sleep data from the PSQI is dealing with incoherent sleep times. Per participant qualitative analyses of values may reveal whether the actual reporting was valid but subsequent coding is biased (e.g. typo's somewhere in the data collection procedures), or reporting itself is biased/misclassified (e.g. random error or related to cognitive impairment/illiteracy). For this PSQI score, arbitrary cut-offs were chosen to classify individuals' bed/wake times and subsequent sleep continuity estimates (see cut-offs listed above). These are a compromise between limiting bias and including as many participants. | - A major difficulty in coding sleep data from the PSQI is dealing with incoherent sleep times. Per participant qualitative analyses of values may reveal whether the actual reporting was valid but subsequent coding is biased (e.g. typo's somewhere in the data collection procedures), or reporting itself is biased/misclassified (e.g. random error or related to cognitive impairment/illiteracy). For this PSQI score, arbitrary cut-offs were chosen to classify individuals' bed/wake times and subsequent sleep continuity estimates (see cut-offs listed above). These are a compromise between limiting bias and including as many participants. | ||
| - Researchers using the Lifelines' sleep data may choose cut-offs differently, depending on the research question (i.e. limiting implausible reporting more in the context of investigating sleep's association to cognitive impairment or related symptoms/disorders). | - Researchers using the Lifelines' sleep data may choose cut-offs differently, depending on the research question (i.e. limiting implausible reporting more in the context of investigating sleep's association to cognitive impairment or related symptoms/disorders). | ||
| - | - Some questions for the PSQI are included in the MCTQ. As the MCTQ more broadly queries time-related questions about sleep behaviour, these questions must be used to calculate PSQI component scores and sumscore of subjective sleep quality. | + | - Some questions for the PSQI are included in the [[Chronotype (MCTQ)|MCTQ]]. As the MCTQ more broadly queries time-related questions about sleep behaviour, these questions must be used to calculate PSQI component scores and sumscore of subjective sleep quality. |
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| === Variables === | === Variables === | ||
| - | | **Questions English** | **Questions Dutch** | **Code** | **Variable** | **Assessment** | **Age** | | + | | **Label English** | **Label Dutch** | **Code** | **Variable** | **Assessment** | **Age** | |
| | PSQI component 1: quality | PSQI component 1: kwaliteit | psqi_componentscore_adu_c_1 | PSQIcomponent1 | [[1B]] | 18+ | | | PSQI component 1: quality | PSQI component 1: kwaliteit | psqi_componentscore_adu_c_1 | PSQIcomponent1 | [[1B]] | 18+ | | ||
| | PSQI component 2: latency | PSQI component 2: latency | psqi_componentscore_adu_c_2 | PSQIcomponent2 | [[1B]] | 18+ | | | PSQI component 2: latency | PSQI component 2: latency | psqi_componentscore_adu_c_2 | PSQIcomponent2 | [[1B]] | 18+ | | ||
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| | Global PSQI score (weighted for maximum 1 component missing) | PSQI-score (gewogen voor maximaal 1 ontbrekend onderdeel) | psqi_globalscore_adu_c_1 | PSQIscore_1miss | [[1B]] | 18+ | | | Global PSQI score (weighted for maximum 1 component missing) | PSQI-score (gewogen voor maximaal 1 ontbrekend onderdeel) | psqi_globalscore_adu_c_1 | PSQIscore_1miss | [[1B]] | 18+ | | ||
| | Global PSQI score, dichotomized into good versus poor sleep quality | PSQI-score, gedichotomiseerd in goede versus slechte slaapkwaliteit | psqi_qualityscore_adu_c_1 | PSQIscore_1miss_dich | [[1B]] | 18+ | | | Global PSQI score, dichotomized into good versus poor sleep quality | PSQI-score, gedichotomiseerd in goede versus slechte slaapkwaliteit | psqi_qualityscore_adu_c_1 | PSQIscore_1miss_dich | [[1B]] | 18+ | | ||
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| ===== Munich Chronotype Questionnaire (MCTQ) ===== | ===== Munich Chronotype Questionnaire (MCTQ) ===== | ||
| The MTCQ is a questionnaire that assesses sleep and wake behavior on work and free days ([[https://doi.org/10.1016/j.cub.2012.03.038|Roenneberg et al., 2012]]). MCTQ provides measures of midpoint of sleep on free days (MSF), and MSF corrected for sleep debt accumulated during the week (MSFsc). | The MTCQ is a questionnaire that assesses sleep and wake behavior on work and free days ([[https://doi.org/10.1016/j.cub.2012.03.038|Roenneberg et al., 2012]]). MCTQ provides measures of midpoint of sleep on free days (MSF), and MSF corrected for sleep debt accumulated during the week (MSFsc). | ||
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| === Variables === | === Variables === | ||
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| - | | **Questions English** | **Questions Dutch** | **Code** | **Variable** | **Assessment** | **Age** | | + | | **Label English** | **Label Dutch** | **Code** | **Variable** | **Assessment** | **Age** | |
| | Sleep duration on free days | Slaapduur op vrije dagen | mctq_sdfree_adu_c_1 | SDf | [[1B]] | 18+ | | | Sleep duration on free days | Slaapduur op vrije dagen | mctq_sdfree_adu_c_1 | SDf | [[1B]] | 18+ | | ||
| | Sleep duration on workdays | Slaapduur op werkdagen | mctq_sdwork_adu_c_1 | SDw | [[1B]] | 18+ | | | Sleep duration on workdays | Slaapduur op werkdagen | mctq_sdwork_adu_c_1 | SDw | [[1B]] | 18+ | | ||
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| - Changing the values of each ESS item score the answers (from 1-4 to 0-3) | - Changing the values of each ESS item score the answers (from 1-4 to 0-3) | ||
| - Calculating the overall ESS score by adding the item scores (cut-off: >= 1 item score missing) | - Calculating the overall ESS score by adding the item scores (cut-off: >= 1 item score missing) | ||
| - | - Categorization of ESS scores | + | - Categorization of ESS scores according to the [[https://epworthsleepinessscale.com/about-the-ess/|ESS website]]: |
| + | * 0-5 ESS score: Lower Normal Daytime Sleepiness | ||
| + | * 6-10 ESS score: Higher Normal Daytime Sleepiness | ||
| + | * 11-12 ESS score: Mild Excessive Daytime Sleepiness | ||
| + | * 13-15 ESS score: Moderate Excessive Daytime Sleepiness | ||
| + | * 16-24 ESS score: Severe Excessive Daytime Sleepiness | ||
| + | |||
| Result: >95,000 calculated ESS scores. | Result: >95,000 calculated ESS scores. | ||
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| === Variables === | === Variables === | ||
| - | | **Description English** | **Description Dutch** | **Code** | **Variable** | **Assessment** | **Age** | | + | | **Label English** | **Label Dutch** | **Code** | **Variable** | **Assessment** | **Age** | |
| - | | Total score ESS | Totaal score ESS | ess_totalscore_adu_c_1 | ESS_total | [[1C]] | 18+ | | + | | Total score ESS | Totaal score ESS | ess_totalscore_adu_c_1 | ESS_total | [[1C]] | 18+ | |
| - | | ESS categories | ESS categorieën | ess_categoryscore_adu_c_1 | ESScat | [[1C]] | 18+ | | + | | ESS categories | ESS categorieën | ess_categoryscore_adu_c_1 | ESScat | [[1C]] | 18+ | |
sleep_indices_psqi_mctq_ess.1605022169.txt.gz · Last modified: 2020/11/10 16:29 by laura
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