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J Pediatr. 2018 May;196:194-200.e1. doi: 10.1016/j.jpeds.2018.01.036. Epub 2018 Mar 15.

Clinically Oriented Subtyping of Chronic Insomnia of Childhood.

Author information

1
Department of Developmental and Social Psychology, Sapienza University of Rome, Rome, Italy. Electronic address: oliviero.bruni@uniroma1.it.
2
Department of Developmental and Social Psychology, Sapienza University of Rome, Rome, Italy.
3
Department of Pediatrics, Child Neurology and Neurorehabilitation Unit, Hospital of Bolzano, Bolzano, Italy.
4
Oasi Research Institute - IRCCS, Troina, Italy.

Abstract

OBJECTIVES:

To identify different profiles of pediatric insomnia, based on the most frequent clinical presentations (nocturnal awakenings, difficulty in falling asleep, nocturnal restlessness, early morning awakenings).

STUDY DESIGN:

A structured parent interview was conducted in 338 children (mean age 21.29 months, SD 10.56) referred by pediatricians because of insomnia resistant to behavioral approaches and common drug treatments. The aim was to assess the characteristics of insomnia in children, together with family sleep-related history. A latent class analysis was run to identify profiles of insomnia. ANOVA and the χ2 test were used to examine differences between profiles.

RESULTS:

A 3-class model was built by latent class analysis: 17% (n = 58) of children constituted the first class, characterized by difficulties in falling asleep, with restlessness, nocturnal restlessness, and awakenings during the night; the second class, characterized by early morning awakenings, comprised 21% (n = 71) of children; 62% (n = 209) of children fell within the third class because of their high frequency of nocturnal awakenings and difficulties in falling asleep. The first class reported longer sleep latency and the presence of restless legs syndrome and anemia in the family history; depression and/or mood disorders were more frequent in class 2 and allergies and/or food intolerance were more frequent in class 3.

CONCLUSIONS:

Our study suggests the existence of 3 different phenotypes of insomnia in children, based on clinical, personal, and familial data. The identification of these different phenotypes might help to optimize the assessment and treatment of insomnia in young children.

KEYWORDS:

child; drug treatment; infant; insomnia; sleep phenotypes

PMID:
29550236
DOI:
10.1016/j.jpeds.2018.01.036
[Indexed for MEDLINE]

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