Persistence and predictors of self-injurious behaviour in autism: a ten-year prospective cohort study

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Persistence and predictors of self-injurious behaviour in autism: a ten-year prospective cohort study. / Laverty, Catherine; Oliver, Chris; Moss, Joanna; Nelson, Lisa; Richards, Caroline.

In: Molecular Autism, Vol. 11, 8, 20.01.2020.

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@article{8544c62cf546488cb45e46fe9e8994b4,
title = "Persistence and predictors of self-injurious behaviour in autism: a ten-year prospective cohort study",
abstract = "Background: Self-injurious behaviours, such as head banging, hair pulling, skin picking and scratching, are common in individuals with autism. Despite high prevalence rates, there is a paucity of longitudinal research to refine models of risk and mechanism and inform service planning. In this longitudinal study, we investigated self-injury in a cohort of individuals with autism over 10 years to identify behavioural and demographic characteristics associated with persistent self-injury.Methods: Carers of 67 individuals with autism completed questionnaires relating to the presence of self-injury and relevant risk markers at T 1 (mean [SD] age in years 13.4 [7.7]) and T 3 (mean [SD] age in years 23.9 [7.7]) 10 years later. Forty-six of these also took part at T 2 (3 years after initial participation). Analysis assessed demographic and behavioural risk markers for self-injury, as well as the predictive value of items assessed at T 1and T 2. Results: Self-injury was persistent in 44% of individuals over the 10-year period, with behavioural characteristics of impulsivity ( p < .001) and overactivity ( p = .002), identified as risk markers for persistence. A predictive model of self-injury was derived from LASSO analysis, with baseline impulsivity, interest and pleasure, stereotyped behaviour, social communication and adaptive functioning predicting self-injury over 10 years. Conclusions: In this unique longitudinal investigation into the persistence of self-injury in a non-clinical sample of individuals with autism over a 10 year period, we have identified a novel, robust and stable profile of behavioural characteristics associated with persistent self-injury. Findings support an early intervention strategy targeted towards individuals identified to be at a higher risk of developing self-injurious behaviour.",
keywords = "Autism, Impulsivity, Prevalence, Risk marker, Self-injury, Self-restraint",
author = "Catherine Laverty and Chris Oliver and Joanna Moss and Lisa Nelson and Caroline Richards",
year = "2020",
month = jan,
day = "20",
doi = "10.1186/s13229-019-0307-z",
language = "English",
volume = "11",
journal = "Molecular Autism",
issn = "2040-2392",
publisher = "Springer",

}

RIS

TY - JOUR

T1 - Persistence and predictors of self-injurious behaviour in autism: a ten-year prospective cohort study

AU - Laverty, Catherine

AU - Oliver, Chris

AU - Moss, Joanna

AU - Nelson, Lisa

AU - Richards, Caroline

PY - 2020/1/20

Y1 - 2020/1/20

N2 - Background: Self-injurious behaviours, such as head banging, hair pulling, skin picking and scratching, are common in individuals with autism. Despite high prevalence rates, there is a paucity of longitudinal research to refine models of risk and mechanism and inform service planning. In this longitudinal study, we investigated self-injury in a cohort of individuals with autism over 10 years to identify behavioural and demographic characteristics associated with persistent self-injury.Methods: Carers of 67 individuals with autism completed questionnaires relating to the presence of self-injury and relevant risk markers at T 1 (mean [SD] age in years 13.4 [7.7]) and T 3 (mean [SD] age in years 23.9 [7.7]) 10 years later. Forty-six of these also took part at T 2 (3 years after initial participation). Analysis assessed demographic and behavioural risk markers for self-injury, as well as the predictive value of items assessed at T 1and T 2. Results: Self-injury was persistent in 44% of individuals over the 10-year period, with behavioural characteristics of impulsivity ( p < .001) and overactivity ( p = .002), identified as risk markers for persistence. A predictive model of self-injury was derived from LASSO analysis, with baseline impulsivity, interest and pleasure, stereotyped behaviour, social communication and adaptive functioning predicting self-injury over 10 years. Conclusions: In this unique longitudinal investigation into the persistence of self-injury in a non-clinical sample of individuals with autism over a 10 year period, we have identified a novel, robust and stable profile of behavioural characteristics associated with persistent self-injury. Findings support an early intervention strategy targeted towards individuals identified to be at a higher risk of developing self-injurious behaviour.

AB - Background: Self-injurious behaviours, such as head banging, hair pulling, skin picking and scratching, are common in individuals with autism. Despite high prevalence rates, there is a paucity of longitudinal research to refine models of risk and mechanism and inform service planning. In this longitudinal study, we investigated self-injury in a cohort of individuals with autism over 10 years to identify behavioural and demographic characteristics associated with persistent self-injury.Methods: Carers of 67 individuals with autism completed questionnaires relating to the presence of self-injury and relevant risk markers at T 1 (mean [SD] age in years 13.4 [7.7]) and T 3 (mean [SD] age in years 23.9 [7.7]) 10 years later. Forty-six of these also took part at T 2 (3 years after initial participation). Analysis assessed demographic and behavioural risk markers for self-injury, as well as the predictive value of items assessed at T 1and T 2. Results: Self-injury was persistent in 44% of individuals over the 10-year period, with behavioural characteristics of impulsivity ( p < .001) and overactivity ( p = .002), identified as risk markers for persistence. A predictive model of self-injury was derived from LASSO analysis, with baseline impulsivity, interest and pleasure, stereotyped behaviour, social communication and adaptive functioning predicting self-injury over 10 years. Conclusions: In this unique longitudinal investigation into the persistence of self-injury in a non-clinical sample of individuals with autism over a 10 year period, we have identified a novel, robust and stable profile of behavioural characteristics associated with persistent self-injury. Findings support an early intervention strategy targeted towards individuals identified to be at a higher risk of developing self-injurious behaviour.

KW - Autism

KW - Impulsivity

KW - Prevalence

KW - Risk marker

KW - Self-injury

KW - Self-restraint

UR - http://www.scopus.com/inward/record.url?scp=85078352438&partnerID=8YFLogxK

U2 - 10.1186/s13229-019-0307-z

DO - 10.1186/s13229-019-0307-z

M3 - Article

C2 - 31988707

VL - 11

JO - Molecular Autism

JF - Molecular Autism

SN - 2040-2392

M1 - 8

ER -