Short Sleep Duration and Later Overweight in Infants.
OBJECTIVE
To provide further knowledge about the longitudinal association between sleep duration and overweight in infants.


STUDY DESIGN
The data for this study are from the CHILD-SLEEP birth cohort (n = 1679). The sleep data are based on parent-reported total sleep duration collected at 3, 8, 18, and 24 months. For a subgroup of 8-month old participants (n = 350), an actigraph recording was also made. Growth data were derived from the child health clinic records. A logistic regression model was used to study the association between sleep duration and later weight development.


RESULTS
Shorter sleep duration in 3-month-old infants was cross-sectionally associated with lower weight-for-length/height (all P values ≤ .026) and body mass index (all P values ≤ .038). Moreover, short sleep duration at the age of 3 months was associated with greater weight-for-length/height z score at the age of 24 months (aOR 1.56; 95% CI 1.02-2.38) as well as with a predisposition to gain excess weight between 3 and 24 months of age (aOR 2.61; 95% CI 1.75-3.91). No significant associations were found between sleep duration at 8, 18, or 24 months and concurrent or later weight status. Actigraph-measured short night-time sleep duration at the age of 8 months was associated with greater weight-for-length at the age of 24 months (aOR 1.51; 95% CI 1.02-2.23).


CONCLUSIONS
Short total sleep duration at the age of 3 months and short night-time sleep duration at the age of 8 months are associated with the risk of gaining excess weight at 24 months of age.
['Tuohino|Tuuli|T|', 'Morales-Muñoz|Isabel|I|', 'Saarenpää-Heikkilä|Outi|O|', 'Kiviruusu|Olli|O|', 'Paunio|Tiina|T|', 'Hovi|Petteri|P|', 'Pietiläinen|Kirsi H|KH|', 'Paavonen|E Juulia|EJ|']
D002657:Child Development D002675:Child, Preschool D003430:Cross-Sectional Studies D005260:Female D006801:Humans D007223:Infant D008137:Longitudinal Studies D008297:Male D050177:Overweight D011446:Prospective Studies D018570:Risk Assessment D012890:Sleep D011795:Surveys and Questionnaires D013997:Time Factors D015430:Weight Gain
sleep duration overweight growth infancy obesity