The trajectories of sleep disturbances in Rett syndrome

Rett syndrome is a rare neurodevelopmental disorder usually affecting females, and is associated with a mutation in the MECP2 gene. Sleep problems occur commonly and we investigated the trajectories and influences of age, mutation and treatments. Data were collected at six time points over 12 years...

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Main Authors: Wong, K., Leonard, H., Jacoby, P., Ellaway, C., Downs, Jennepher
Format: Journal Article
Published: Blackwell Publishing Ltd 2015
Online Access:http://hdl.handle.net/20.500.11937/17403
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author Wong, K.
Leonard, H.
Jacoby, P.
Ellaway, C.
Downs, Jennepher
author_facet Wong, K.
Leonard, H.
Jacoby, P.
Ellaway, C.
Downs, Jennepher
author_sort Wong, K.
building Curtin Institutional Repository
collection Online Access
description Rett syndrome is a rare neurodevelopmental disorder usually affecting females, and is associated with a mutation in the MECP2 gene. Sleep problems occur commonly and we investigated the trajectories and influences of age, mutation and treatments. Data were collected at six time points over 12 years from 320 families registered with the Australian Rett Syndrome Database. Regression analysis was used to investigate relationships between sleep disturbances, age, mutation type and use of treatment, and latent class growth analysis was performed to identify sleep problem phenotypes and model the effect of mutation type. The age range of subjects was 2.0–35.8 years. The study showed that sleep problems occurred in more than 80% of individuals and the prevalence decreased with age. Night laughing and night screaming occurred in 77 and 49%, respectively, when younger. Those with a large deletion had a higher prevalence of night laughing, which often occurred frequently. Treatment was associated with a 1.7% reduction in risk of further sleep problems. High and low baseline prevalence groups were identified. Approximately three-quarters of girls and women with sleep disturbances were in the high baseline group and problems persisted into adulthood. Conversely, 57% with night laughing and 42% with night screaming in the high baseline group exhibited mild improvement over time. Mutation type was not found to be a significant predictor of group membership. In conclusion, the evolution of sleep problems differed between subgroups of girls and women with Rett syndrome, in part explained by age and genotype. Treatment was not associated with improvement in sleep problems.
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spelling curtin-20.500.11937-174032023-02-22T06:24:21Z The trajectories of sleep disturbances in Rett syndrome Wong, K. Leonard, H. Jacoby, P. Ellaway, C. Downs, Jennepher Rett syndrome is a rare neurodevelopmental disorder usually affecting females, and is associated with a mutation in the MECP2 gene. Sleep problems occur commonly and we investigated the trajectories and influences of age, mutation and treatments. Data were collected at six time points over 12 years from 320 families registered with the Australian Rett Syndrome Database. Regression analysis was used to investigate relationships between sleep disturbances, age, mutation type and use of treatment, and latent class growth analysis was performed to identify sleep problem phenotypes and model the effect of mutation type. The age range of subjects was 2.0–35.8 years. The study showed that sleep problems occurred in more than 80% of individuals and the prevalence decreased with age. Night laughing and night screaming occurred in 77 and 49%, respectively, when younger. Those with a large deletion had a higher prevalence of night laughing, which often occurred frequently. Treatment was associated with a 1.7% reduction in risk of further sleep problems. High and low baseline prevalence groups were identified. Approximately three-quarters of girls and women with sleep disturbances were in the high baseline group and problems persisted into adulthood. Conversely, 57% with night laughing and 42% with night screaming in the high baseline group exhibited mild improvement over time. Mutation type was not found to be a significant predictor of group membership. In conclusion, the evolution of sleep problems differed between subgroups of girls and women with Rett syndrome, in part explained by age and genotype. Treatment was not associated with improvement in sleep problems. 2015 Journal Article http://hdl.handle.net/20.500.11937/17403 10.1111/jsr.12240 Blackwell Publishing Ltd unknown
spellingShingle Wong, K.
Leonard, H.
Jacoby, P.
Ellaway, C.
Downs, Jennepher
The trajectories of sleep disturbances in Rett syndrome
title The trajectories of sleep disturbances in Rett syndrome
title_full The trajectories of sleep disturbances in Rett syndrome
title_fullStr The trajectories of sleep disturbances in Rett syndrome
title_full_unstemmed The trajectories of sleep disturbances in Rett syndrome
title_short The trajectories of sleep disturbances in Rett syndrome
title_sort trajectories of sleep disturbances in rett syndrome
url http://hdl.handle.net/20.500.11937/17403