Ève Reynaud|Marie?Françoise Vecchierini|Barbara Heude|Charles Munier|Sabine Plancoulaine
Sleep and its relation to cognition and behaviour in preschool?aged children of the general population: a systematic review
Hôpital Paul-Brousse|Inserm|École des Hautes Études en Santé Publique|Hôtel-Dieu de Paris|Hôpital Paul-Brousse|Inserm|Hôpital Paul-Brousse|Inserm|Inserm|Hôpital Paul-Brousse
summary first systematic review literature sleep relation cognition behaviour preschoolaged children comparison literature focused schoolaged children knowledge involving preschoolers rather sparse total 26 studies included review revealed high degree heterogeneity regarding type means measuring sleep variables behavioural cognitive variables well statistical methods employed amongst 13 articles largest sample sizes top 50 included studies 12 different populations 12 found higher quantity quality sleep associated better behavioural andor cognitive outcomes results point association sleep behaviour cognition early preschool years strengths associations reported articles relatively small studies smaller sample size less concordant consistent findings strengths association small thus require large sample sizes ensure statistical detection power different aspects sleep associated cognitive behavioural features way underscores need specific measures rather general ones sleep problems behaviour problems able decipher relationships also need large longitudinal studies using objective measures accounting confounding factors childs genotype recently shown moderating role association sleep behaviour explored