Sleep differences in one-year-old children were related to obesity risks based on their parents' weight according to baseline longitudinal study data.
AIM
Parental obesity is the predominant risk factor for child obesity. We compared sleep in one-year-old children with different obesity risks, based on parental weight, and explored associations with weight, parental sleep and family factors.


METHODS
Baseline data from 167 families participating in a longitudinal obesity prevention programme was used. Sleep patterns were compared between groups with high and low obesity risks, based on parental weight, and associations between child sleep and weight status, family obesity risk and parental sleep were explored. Sleep was assessed using child sleep diaries and standard parental questionnaires.


RESULTS
Later bedtime, longer sleep onset latency and lower sleep efficiency were observed among children in the high-risk group. Child sleep onset latency was associated with the family obesity risk (β = 0.25, p = 0.001), child bedtime with both maternal (β = 0.33, p < 0.01) and paternal bedtime (β = 0.22, p < 0.05) and child sleep efficiency with maternal sleep quality (β = 0.20, p < 0.01). The child's bedtime was weakly associated with their body mass index (β = 0.17, p < 0.05).


CONCLUSION
Sleep differed between one-year-old children with high or low obesity risks, based on their parents' body mass index, and was associated with the family obesity risk and parental sleep. The child's bedtime was weakly associated with their weight status.
['Ekstedt|Mirjam|M|http://orcid.org/0000-0002-4108-391X', 'Darkeh|Mojgan Haji Seyed Ebrahim|MH|', 'Xiu|Lijuan|L|', 'Forssén|Michaela|M|', 'Johansson|Elin|E|', 'Ek|Anna|A|', 'Svensson|Viktoria|V|', 'Ekbom|Kerstin|K|', 'Marcus|Claude|C|']
D015992:Body Mass Index D001835:Body Weight D003430:Cross-Sectional Studies D005260:Female D006801:Humans D007223:Infant D008297:Male D010290:Parents D063766:Pediatric Obesity D012307:Risk Factors D012890:Sleep D013548:Sweden
Parental obesity Parental sleep Sleep onset latency Sleep efficiency Child obesity risk