Video Analysis of Parent-Child Interactions in Behavioral Sleep Disorders: Development of a Scoring Algorithm
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Published on: October 2, 2019
Lorna Galbraith1, Kim Bull1, Catherine M Hill1,2
1Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
Insights
Researchers developed a new algorithm to objectively analyze child and parent behaviors during sleep. This tool aims to improve the assessment of behavioral sleep disorders, like chronic insomnia, by overcoming the unreliability of subjective parent reports.
Area of Science:
- Pediatric Sleep Medicine
- Behavioral Psychology
- Biomedical Engineering
Background:
- Subjective parent interviews are the standard for assessing childhood behavioral sleep disorders, but are prone to recall bias and sleep deprivation effects.
- Existing methods lack standardized tools for objectively analyzing parent and child nighttime behaviors.
- Child brain tumor survivors exhibit a high prevalence of chronic insomnia, making them a relevant population for studying sleep disorders.
Purpose of the Study:
- To develop and validate a novel algorithm for objectively scoring parent and child behaviors during sleep.
- To establish a standardized method for analyzing nighttime behaviors in children with potential sleep disorders.
- To provide a more reliable assessment tool compared to subjective parental reports.
Main Methods:
- A coding system was developed using BORIS© software to analyze home video recordings of children's sleep.
- The algorithm was refined through iterative development until inter-rater reliability exceeded 70%.
- The study involved child brain tumor survivors screened for sleep difficulties and diagnosed with chronic insomnia.
Main Results:
- A final coding system included categories for time, environment, child status, location, activity, and physical interaction.
- The developed algorithm achieved an inter-rater reliability of 74%.
- The study successfully created a statistically acceptable behavior scoring algorithm.
Conclusions:
- The developed algorithm offers a more objective measure for assessing behavioral sleep disorders in children.
- This tool has potential clinical applications for diagnosing and managing conditions like chronic insomnia.
- Further development could enhance its utility in research for objective outcome measurement in sleep studies.
Abstract:
Introduction: Behavioral sleep disorders, including chronic insomnia (CI), are generally assessed by subjective parent interview. However, evidence suggests that parental report of children's overnight behaviors is unreliable, perhaps due to recall bias or confusion due to sleep deprivation. Video technology has been used clinically to capture complex behavioral disorders in children during the day. However, there is no standardized means of analyzing child and parent behavior at bedtime or during the night. We aimed to create an algorithm for this purpose. Methods: Child brain tumor survivors (a population previously shown to have a high prevalence of CI) were screened for difficulties initiating and maintaining sleep using sub-scales from the Sleep Disturbance Scale for Children. Those who screened positive (n = 3) then completed a detailed parent interview to confirm a clinical diagnosis of CI. One night of home video footage was obtained from initial settling period to morning waking (SOMNOmedics camera). Footage was imported into BORIS© software and a coding system for parent and child behavior was developed over multiple iterations until agreeable inter-rater reliability (>70%) was achieved between two independent coders. Results: The final coding categories were: 1) time domains, 2) physical environment, 3) child global status, 4) location, 5) activity, and 6) physical interaction. This achieved 74% inter-reliability in its last iteration. Discussion: A statistically acceptable behavior scoring algorithm was achieved. With further development, this tool could be applied clinically to investigate behavioral insomnia and in research to provide more objective outcome measurement.

