Weekend catch‐up sleep is associated with decreased risk of being overweight among fifth‐grade students with short sleep duration

Apr 13, 2012Journal of sleep research

Weekend catch-up sleep linked to lower overweight risk in fifth graders who sleep less during the week

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Abstract

A total of 936 school children aged 10 or 11 years showed that longer sleep duration is associated with decreased odds of childhood overweight.

Longer sleep duration on both weekdays and weekends is linked to lower chances of being overweight (OR: 0.68 for weekdays; OR: 0.64 for weekends).
Increased weekend catch-up sleep is associated with reduced odds of being overweight (OR: 0.67).
The relationship between weekday sleep duration and weekend catch-up sleep in relation to being overweight may be stronger when weekday sleep is shorter.
Childhood overweight risk is influenced by sleep patterns, with implications for sleep duration management in children.

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Previous studies have reported a relationship between short sleep duration and childhood overweight. Although school-aged children tend to compensate for weekday sleep deficit by increasing weekend sleep duration, the association between weekend catch-up sleep and childhood overweight remains unclear. This study aimed to examine the relationship between weekend catch-up sleep and being overweight in children. A total of 936 school children (48.2% boys) aged 10 or 11 years participated in this school-based cohort study. Anthropometric measurements including height and body weight were carried out. We obtained data on sleep patterns, lifestyle and parent characteristics using questionnaires. The main outcome measure was childhood overweight. After adjusting for the relevant confounding variables (age, sex, breakfast eating, screen time and parental obesity), longer sleep on weekdays and weekends was associated with decreased odds of childhood overweight (OR: 0.68; 95% CI: 0.54-0.86; OR: 0.64; 95% CI: 0.53-0.77, respectively). Participants with increased catch-up sleep duration during weekends also had decreased odds of being overweight (OR: 0.67; 95% CI: 0.53-0.85). There was an interaction between weekday sleep duration and weekend catch-up sleep in relation to childhood overweight, and this effect of weekend catch-up sleep on being overweight was stronger as the participants slept less on weekdays (P = 0.024). These results indicate that weekend catch-up sleep is independently associated with decreased risk of being overweight in fifth-grade students, and this effect can be varied by the weekday sleep duration. A prospective study is required to confirm this observation.

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Weekend catch‐up sleep is associated with decreased risk of being overweight among fifth‐grade students with short sleep duration

Abstract

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