title: Relationship between preterm birth and circadian typology in adolescence.
abstract: A possible relationship between preterm birth and circadian typology was investigated in two pilot survey studies involving 13-year-old teen-agers. Two different questionnaires were used: the Junior Morningness-Eveningness Questionnaire (MEQ) (administered to 55 preterm and 210 fullterm subjects) and the Junior Composite Scale (CS) (administered to 40 preterm and 318 fullterm subjects). In both surveys, preterm groups presented significantly higher total scores, indicating a higher propensity to morningness. Indeed in the preterm samples no evening types were found. The results are discussed in relation to recent models of circadian regulation of the sleep-wake cycle.
authors.affiliation: Department of Psychology, University of Bologna, Viale Berti Pichat 5, 40127 Bologna, Italy. vincenzo.natale@unibo.it
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Natale
authors.forename: Alessandra
authors.initials: A
authors.lastname: Sansavini
authors.forename: Elena
authors.initials: E
authors.lastname: Trombini
authors.forename: Maria José
authors.initials: MJ
authors.lastname: Esposito
authors.forename: Rosina
authors.initials: R
authors.lastname: Alessandroni
authors.forename: Giacomo
authors.initials: G
authors.lastname: Faldella
mesh_terms: D000293:Adolescent; D002940:Circadian Rhythm / Q000502:physiology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D010865:Pilot Projects; D011795:Surveys and Questionnaires