Delayed Sleep Phase Disorder in Children With Non-Monosymptomatic Primary Nocturnal Enuresis

Parsa Yousefichaijan, Ali Khosrobeigi, Bahman Salehi, Hassan Taherahmadi, Fakhreddin Shariatmadari, Yazdan Ghandi, Ali Arjmand


Background: Delayed sleep phase disorder (DSPD), a circadian rhythm disorder, involves a significant, persistent, and intractable phase shift in sleep-wake schedule (later sleep onset and wake time) that conflicts with the individuals normal school, work, and/or lifestyle demands. Nocturnal enuresis (NE) is one of the most frequent pediatric pathologies. The prevalence of primary nocturnal enuresis (PNE) is around 9% in children aged 5 - 10 years and about 40% of them have one or more episodes per week.

Methods: In this study, we recruited 160 children with monosymptomatic primary nocturnal enuresis (MPNE) and 160 healthy children without MPNE aged 6 - 18 years old. The children sleep pattern was completed by the parents. Data were analyzed usingt-test and Chi-square tests.

Results: Among 320 children in both groups, DSPD was significantly different between cases and controls.

Conclusions: Considering the results of this study, the higher prevalence of DSPD in children with non-monosymptomatic primary nocturnal enuresis (NMPNE) highlights the importance of early intervention for better treatment and prevention of DSPD in children.

Int J Clin Pediatr. 2015;4(4):178-180


Delayed sleep phase disorder; Nocturnal enuresis; Child

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