title: Morningness-eveningness, chronotypes and health-impairing behaviors in adolescents.
abstract: The impact of diurnal preferences on health-related behaviors is acknowledged but relatively understudied. The aim of this study was threefold: (1) testing the measurement model of the Hungarian version of the reduced Horne-Östberg Morningness-Eveningness Questionnaire (Hungarian Version of the rMEQ); (2) estimating chronotypes and their prevalence; and (3) analyzing the relationship between morningness-eveningness/chronotypes and health-impairing behaviors, including smoking, alcohol use, and physical inactivity in adolescents. Self-reported data on the Hungarian version of the rMEQ, smoking, alcohol use, and physical inactivity obtained from Hungarian high-school students (ninth grade, N = 2565) were analyzed with confirmatory factor analysis (CFA), latent profile analysis (LPA), structural equation modeling, and analysis of variance (ANOVA). A one-factor model of morningness was supported, which included rising time, peak time, retiring time, and self-evaluation of chronotype. Morningness was significantly associated with a lower likelihood of smoking and alcohol use, and also with a lower level of physical inactivity. Using LPA, the authors identified three chronotypes: intermediate type (50.7%), morning type (30.5%), and evening type (18.8%). Compared to the evening-type participants, intermediate- and morning-type participants were significantly less likely to experiment with smoking, to smoke nondaily, and to smoke daily. Moreover, both intermediate- and morning-type students reported less lifetime alcohol use and less physical inactivity than evening-type students. Chronopsychological research can help to understand the relatively unexplored determinants of health-impairing behaviors in adolescents associated with chronotype.
authors: Department of Personality and Health Psychology, Eötvös Loránd University, Budapest, Hungary. r.urban.bp@gmail.com
authors: Róbert
authors: R
authors: Urbán
authors: Tímea
authors: T
authors: Magyaródi
authors: Adrien
authors: A
authors: Rigó
mesh_terms: D000293:Adolescent; D000428:Alcohol Drinking; D002909:Chronobiology Phenomena / Q000502:physiology*; D003625:Data Collection; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D012907:Smoking; D011795:Surveys and Questionnaires