title: Sleep quality in young adults with very low birth weight--the Helsinki study of very low birth weight adults.
abstract: OBJECTIVE
  To assess the relationship between very low birth weight (VLBW; <1,500 g) and quality and amount of sleep in young adults.
  
  
  METHODS
  We compared 89 VLBW and 78 term-born 19- to 26-year-old adults, by actigraphy and the Basic Nordic Sleep Questionnaire.
  
  
  RESULTS
  There were no group differences in sleep quality or amount (p's >.15), although VLBW adults went to bed on average 36 min earlier (95% confidence interval 6-66 min). Shorter gestational age was related to longer sleep latency both within VLBW (standardized regression coefficient beta = -.36, p =.040) and term-born adults (beta = -.25, p =.029).
  
  
  CONCLUSIONS
  Adults with VLBW had similar quality and amount of sleep as those born at term, although VLBW adults went to bed earlier, suggesting an advanced sleep phase. Within each group, a lower gestational age was related to a longer sleep onset.
authors: Hospital for Children and Adolescents, Biomedicum 2, Tukholmankatu 8A, Helsinki University Central Hospital, PO Box 448, FI-00029, Helsinki, Finland. sonja.strang@helsinki.fi
authors: Sonja
authors: S
authors: Strang-Karlsson
authors: Katri
authors: K
authors: Räikkönen
authors: Eero
authors: E
authors: Kajantie
authors: Sture
authors: S
authors: Andersson
authors: Petteri
authors: P
authors: Hovi
authors: Kati
authors: K
authors: Heinonen
authors: Anu-Katriina
authors: AK
authors: Pesonen
authors: Anna-Liisa
authors: AL
authors: Järvenpää
authors: Johan G
authors: JG
authors: Eriksson
authors: E Juulia
authors: EJ
authors: Paavonen
mesh_terms: D000293:Adolescent; D000328:Adult; D004594:Electrophysiology / Q000295:instrumentation; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D019102:Infant, Very Low Birth Weight; D008297:Male; D015995:Prevalence; D012720:Severity of Illness Index; D012893:Sleep Wake Disorders / Q000175:diagnosis / Q000453:epidemiology*; D011795:Surveys and Questionnaires