title: The association between sleep duration and weight in treatment-seeking preschoolers with obesity.
abstract: OBJECTIVE
  To examine the association between nocturnal sleep duration and weight and caloric intake outcomes among preschool-aged children who are obese and enrolled in a family-based weight management program.
  
  
  METHODS
  Forty-one preschool-aged children who were obese (BMI ≥ 95th percentile) and enrolled in a weight management program completed pre- and posttreatment assessments of body mass, caloric intake, and sleep. Separate linear regression analyses examined the relationship between nocturnal sleep duration and posttreatment body mass index relative to age- and sex-linked norms (BMIz) and caloric intake.
  
  
  RESULTS
  After controlling for pretreatment BMIz, longer posttreatment nocturnal sleep was significantly associated with lower posttreatment BMIz (β=-0.21, p=0.02) and explained a significant proportion of unique variance in posttreatment BMIz (ΔR(2)=0.04). Similarly, after controlling for pretreatment caloric intake, longer nocturnal sleep duration at posttreatment was significantly associated with lower caloric intake at posttreatment (β=-0.45, p=0.003) and explained a significant proportion of unique variance in posttreatment caloric intake (ΔR(2)=0.19).
  
  
  CONCLUSIONS
  These findings extend the literature on the sleep and weight relationship and suggest that adequate sleep may be an important element in interventions for preschoolers with obesity.
authors: Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229-3039, United States.
authors: Lisa M
authors: LM
authors: Clifford
authors: Dean W
authors: DW
authors: Beebe
authors: Stacey L
authors: SL
authors: Simon
authors: Elizabeth S
authors: ES
authors: Kuhl
authors: Stephanie S
authors: SS
authors: Filigno
authors: Joseph R
authors: JR
authors: Rausch
authors: Lori J
authors: LJ
authors: Stark
mesh_terms: D001835:Body Weight / Q000502:physiology*; D002652:Child Behavior / Q000502:physiology; D002675:Child, Preschool; D002149:Energy Intake / Q000502:physiology*; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D009765:Obesity / Q000178:diet therapy* / Q000503:physiopathology*; D012890:Sleep / Q000502:physiology*