Cited by 522Circadian rhythm and melatoninSleep and related disordersSleep and Work-Related Fatigue

GENDER DIFFERENCES IN MORNINGNESS–EVENINGNESS PREFERENCE

Adan, Ana, Natale, Vincenzo·2002·Chronobiology International

Abstract

Morningness-eveningness preference (morning-, intermediate-, evening-type) or circadian typology is the individual difference that most clearly explains the variations in the rhythmic expression of biological or behavioral patterns. The aim of this study was to analyze gender difference in morningness-eveningness preference using the Horne and Ostberg questionnaire in the largest university student population selected so far (N = 2135), with an age range 18-30 yr. Morningness-eveningness questionnaire (MEQ) score distribution closely correlated to the normal curve (range 17-78, mean = 48.25; SD = 10.11), with 338 (15.84%) morning-types, 1273 (59.62%) intermediate-types, and 524 (24.54%) evening-types. The men and women differed significantly in their mean scores (p < 0.0001) and distribution per circadian typology (p < 0.00001), with the men presenting a more pronounced eveningness preference. Three factors were identified by factor analysis: time of greatest efficiency (I), sleep time/sleep phase (II), awakening time/sleep inertia (III). The MEQ items sensitive to gender differences were essentially those included in factor I and factor II. The results are discussed in relation to recent models of circadian regulation of the sleep-wake cycle.

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Crossref · 10.1081/cbi-120005390

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Authors
Adan, A., & Natale, V.
Affiliations
University of Bologna (IT)
Venue
Chronobiology International
Published
2002-01
Volume
19
Issue
4
Pages
709-720
ISSN
  • 0742-0528 (ISSN-L)
  • 1525-6073
OpenAlex
W2166537470
Cited by
522
References
36
Citations by year
2026: 17 · 2025: 23 · 2024: 21 · 2023: 25 · 2022: 30 · 2021: 29 · 2020: 40 · 2019: 26 · 2018: 21 · 2017: 30 · 2016: 21 · 2015: 23 · 2014: 28 · 2013: 29 · 2012: 26
FWCI
1.89
Type
journal article
Language
en
Open access
closed
Locations
  • Chronobiology International (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
morningness-eveningness preference, chronotype, gender differences, university students, sleep-wake cycle, circadian regulation, sleep inertia, sleep stages
MeSH terms
Circadian Rhythm, Female, Humans, Male, Surveys and Questionnaires, Sex Characteristics, Sleep, Photoperiod

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