Circadian Preference and Sleep-Wake Regularity: Associations With Self-Report Sleep Parameters in Daytime-Working Adults

Soehner, Adriane M.; Kennedy, Kathy S.; Monk, Timothy H.

doi:10.3109/07420528.2011.613137

Cited by 93 publications

(57 citation statements)

References 39 publications

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“…Our finding of a higher prevalence of short sleepers in male E-types than M-types is in line with earlier studies, suggesting that E-types may have shorter sleep durations during working days than the other chronotypes (Roenneberg et al, 2007;Roepke & Duffy, 2010;Soehner et al, 2011;Taillard et al, 1999). It can result in partial sleep deprivation, which they may try to compensate for by sleeping longer on free days.…”

Section: Sleep Durationsupporting

confidence: 91%

Relation of Chronotype to Sleep Complaints in the GeneralFinnish Population

Merikanto¹,

Kronholm²,

Peltonen³

et al. 2012

Chronobiology International

226

151

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Individuals show variation in their preference for the daily timing of activities. In this study the authors analyzed whether chronotypes associate with sleep duration and sleep-related complaints. The authors used the National FINRISK Study 2007 Survey data on 3696 women and 3162 men, representative of the Finnish population aged 25 yrs and older, for the assessment of chronotype and self-reported sleep. Evening types experienced insomnia symptoms, had nightmares, and had used recently hypnotics significantly more often than other chronotypes among both men and women. In a multinominal logistic regression model predicting insufficient sleep, the association of eveningness with insufficient sleep was not abolished after adjustment for sex, age, and sleep duration. The prevalence of short sleepers was significantly higher in evening types among men than among women, whereas that of long sleepers was significantly higher in evening types among both men and women, as compared with the other chronotypes. These results indicate that eveningness predisposes individuals to a range of sleep complaints.

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Section: Sleep Durationsupporting

confidence: 91%

Relation of Chronotype to Sleep Complaints in the GeneralFinnish Population

Merikanto¹,

Kronholm²,

Peltonen³

et al. 2012

Chronobiology International

226

151

View full text Add to dashboard Cite

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“…This supports the first part of our first hypothesis and is in line with some previous studies showing a significant and positive relationship between morningness and shift work tolerance 17 27. Owing to their advanced circadian rhythm, daytime-working adults with high scores on morningness have shorter sleep onset latency and longer sleep duration on weekdays than people with lower scores on morningness,28 findings which are in line with our results. The second part of the first hypothesis was not supported as there were no significant findings regarding morningness, either in terms of evening or sleep-related night shift tolerance.…”

Section: Discussionsupporting

confidence: 93%

Personality factors predict sleep-related shift work tolerance in different shifts at 2-year follow-up: a prospective study

et al. 2013

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ObjectivesThe aim of the present study was to investigate whether the personality variables morningness, flexibility, languidity and hardiness could predict sleep-related shift work tolerance for the day, evening and night shifts, respectively.DesignProspective study design with questionnaires administered in winter 2008/2009 (wave 1) and 2 years later in spring 2011 (wave 3).SettingDifferent healthcare institutions in Norway.ParticipantsThe sample comprised in all 700 nurses working a three-shift rotating schedule.Primary and secondary outcome measuresThe personality variables were assessed at wave 1, as were the demographic, lifestyle and work-related variables. Sleep-related shift work tolerance, assessed at wave 3, was measured separately for the day, evening and night shifts with the Bergen Shift Work Sleep Questionnaire.ResultsMorningness was positively associated with sleep-related day shift tolerance (p<0.001). Flexibility was positively associated with sleep-related tolerance for the evening as well as night shift (p<0.001). Furthermore, languidity was negatively associated with sleep-related shift tolerance for the day, evening and night shifts (p<0.001, <0.01, <0.05, respectively). Hardiness was positively associated with sleep-related tolerance for the day, evening and night shifts (p<0.001, <0.01, <0.05, respectively). Age was negatively associated with sleep-related shift tolerance for the day, night (p<0.01) and evening shifts (p<0.001).ConclusionsThe findings indicate that hardiness and languidity predict sleep-related shift work tolerance across all shift types among shift working nurses. The effects of flexibility and morningness seem to depend on the shift schedule. By and large, our results are in accordance with previous studies; however, we have now demonstrated the prospective importance of personality in relation to sleep-related shift work tolerance across different shifts.

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“…In normal and comparable conditions, these interindividual variations are related to the chronotype of the subjects (Ogiń ska, 2011;Soehner et al, 2011;Zimmermann, 2011). The chronotype or circadian typology is defined as the circadian phase preference, referring to the preference of an individual in the timing for activities and, so, the timing of sleep and wake (Koskenvuo et al, 2007;Ogiń ska, 2011;Smith et al, 2002;Soehner et al, 2011;Taillard et al, 2011;Vink et al, 2001;Zimmermann, 2011). Individuals who present a preference for activity earlier or later in the day are identified as morning or evening types, respectively.…”

Section: Introductionmentioning

confidence: 97%

Validation of a Chronotype Questionnaire Including an Amplitude Dimension

Dosseville

Laborde

Lericollais

2013

Chronobiology International

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The aim of this paper was to validate a French version of the Chronotype Questionnaire (Ogińska, 2011, Pers. Individ. Dif. 50:1039-1043), which represents an interesting novelty in the psychometric assessment of chronotype, because it comprises not only an assessment of the morningness-eveningness (ME) dimension, but also a distinctness (DI) dimension (i.e., amplitude), which represents the range of diurnal variation. In study 1, we aimed to confirm the structure of the Chronotype Questionnaire, with two different samples, young adults (n = 338, mean ± SD = 18.70 ± 1.12 yrs, 244 men and 94 women) and old adults (n = 477, mean ± SD = 55.92 ± 11.9 yrs, 168 men and 310 women). The confirmatory factor analysis (CFA) indicated a poor fit in both samples as well as in the whole sample, which could be due to some inconsistencies in the original instrument, above all in the distinctness dimension. We therefore decided to revise the Chronotype Questionnaire, keeping the ME dimension, but refining the DI dimension. In study 2, with a new sample of 197 participants (mean ± SD = 22.71 ± 2.23 yrs, 105 men and 92 women), we examined the factor structure of the revised scale containing 18 items. The resulting questionnaire contained 16 items (i.e., 8 items on each scale), with item factor loadings higher than .45. In study 3, we aimed to confirm the factor structure of the instrument developed in study 2 as well as to examine its convergent validity, with a new sample of 158 participants (mean ± SD = 55.92 ± 11.9 yrs, 97 men and 61 women). Results of the CFA showed that a good fit of the model could be obtained with 16 items in the questionnaire. The new questionnaire derived from the original Chronotype Questionnaire was from now on called the Caen Chronotype Questionnaire (CCQ). Convergence validity was obtained with the Horne and Östberg questionnaire and the ME scale of the CCQ, showing a negative significant relationship (r = -.82). The CCQ showed promising psychometric qualities, and further research should aim to combine it with physiological variables.

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Circadian Preference and Sleep-Wake Regularity: Associations With Self-Report Sleep Parameters in Daytime-Working Adults

Cited by 93 publications

References 39 publications

Relation of Chronotype to Sleep Complaints in the GeneralFinnish Population

Relation of Chronotype to Sleep Complaints in the GeneralFinnish Population

Personality factors predict sleep-related shift work tolerance in different shifts at 2-year follow-up: a prospective study

Validation of a Chronotype Questionnaire Including an Amplitude Dimension

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