Sleep problems are very common in children with ASD, with a prevalence rate as high as 78%, and often pose significant challenges and stress to the families. Sleep problems in children with ASD are strongly associated with the exacerbation of daytime symptoms, and poor parental sleep quality and mental health. The present study is a randomised controlled trial to compare the effects of a parent-based sleep intervention for children with ASD (aged 3-6). Eligible participants will be randomised to either intervention (three consultation sessions and four follow-up phone calls) or waiting-list control condition. Assessments will be conducted at pre-treatment (baseline), and one-week after the intervention (post-treatment).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
75
The first session will involve the provision of sleep-related psycho-education (e.g. sleep hygiene practices) and specific strategies to tackle problematic sleep-related behaviours, as well as collaborative goal setting and development of management plan tailored to the child's sleep problem. The second and third session will involve a review of the sleep diary and a reinforcement of learned strategies, and focus on problem-solving to tackle any issues that have emerged from implementing the behavioural strategies at home. Follow-up phone calls provide parents with an opportunity to ask any further questions and to consolidate learned strategies and further troubleshoot.
Department of Clinical Psychology, The Duchess of Kent Children's Hospital at Sandy Bay, HKWC, Hospital Authority
Hong Kong, Hong Kong
Sleep Research Clinic & Laboratory, Department of Psychology, The University of Hong Kong
Hong Kong, Hong Kong
Child: Change of child's sleep
Change of the child's sleep measured by the Children's Sleep Habits Questionnaire (CSHQ). The total score of CSHQ ranges from 33 to 99. A higher score reflects more sleep disturbance.
Time frame: Baseline, immediately after the treatment
Child: change of insomnia symptoms (bedtime resistance)
Change of the child's bedtime resistance measured by the Children's Sleep Habits Questionnaire (CSHQ) bedtime resistance score (6 items; score range: 6-18)
Time frame: Baseline, immediately after the treatment
Child: change of insomnia symptoms (sleep onset delay)
Change of the child's sleep onset delay measured by the Children's Sleep Habits Questionnaire (CSHQ) sleep onset delay score (1 item; score range: 1-3)
Time frame: Baseline, immediately after the treatment
Child: change of insomnia symptoms (night waking)
Change of the child's night waking measured by the Children's Sleep Habits Questionnaire (CSHQ) night waking score (3 items; score range: 3-9)
Time frame: Baseline, immediately after the treatment
Parent: Change of parental self-reported sleep quality
Pittsburgh Sleep Quality Index (PSQI), a validated 19-item measure used to assess sleep habits, quality, and quantity, producing a total score and seven sub-scores in sleep quality, sleep onset latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleep medication, and daytime dysfunction. The global score can range from 0 to 21. Higher scores suggest poorer sleep quality.
Time frame: Baseline, immediately after the treatment
Parent: Change of parental insomnia symptoms
Insomnia Severity Index (ISI). Total score ranges from 0-28 and higher scores indicate greater insomnia severity.
Time frame: Baseline, immediately after the treatment
Child: Change of child's behaviour & other clinical symptoms
Strengths and Difficulties Questionnaire - parent report, which is a 25-item screening measure for emotional and behavioral problems in children. It consists of five subscales. Each of the subscales consists of five items, and scale scores range from 0-10. A higher score is indicative of more problems for all subscales, except for the prosocial scale, where higher scores correspond to fewer difficulties in prosocial behaviour.
Time frame: Baseline, immediately after the treatment
Child: Change of child's executive functions reported by parents
Behavioral Rating Inventory of Executive Function - Preschool Version (BRIEF-P). It consists of 63 items that measure various behavioral manifestations of EF based on parent or teacher ratings, within the context of the child's everyday environment.
Time frame: Baseline, immediately after the treatment
Parent: Change of parental mood symptoms
Depression Anxiety Stress Scales - 21 item (DASS-21) consists of three self-report scales designed to measure the emotional states of depression, anxiety and stress. Each of the three DASS-21 scales contains 7 items. Higher scores suggest more depression, anxiety and stress, respectively.
Time frame: Baseline, immediately after the treatment
Parent: Change of parental stress
Chinese version of Parental Stress Scale (PSS). It contains 17 items representing pleasure or positive themes of parenthood (emotional benefits, self-enrichment, personal development) and negative components (demands on resources, opportunity costs and restrictions). Higher scores on the scale indicate greater stress.
Time frame: Baseline, immediately after the treatment
Parent: Change of parental sense of competence and satisfactory in parenting
Parental Sense of Competence Scale (PSOC), which is a scale designed to measures parental competence on two dimensions: Satisfaction and Efficacy. It is a 16-item Likert-scale questionnaire (on a 6-point scale ranging from strongly agree \[1\] to strongly disagree \[6\]), with nine questions under Satisfaction and seven under Efficacy.
Time frame: Baseline, immediately after the treatment
Parent: Parent's satisfaction to the treatment
Treatment satisfaction rating scale, a parent-report measure specifically designed for the study. Lower scores suggest higher parental satisfaction.
Time frame: Baseline, immediately after the treatment
Parent: Parent's overall health status
Short Form 12-item Health Survey (SF-12v2), a validated measure of health-related quality of life (HRQOL). It consists of 12 items that cover 8 subscales, namely physical functioning (PF), role physical (RP), bodily pain (BP), general health (GH), vitality (VT), social functioning (SF), role emotional (RE) and mental health (MH). The eight subscale scores can be aggregated into a physical component summary (PCS) score and a mental component summary (MCS) score. Each of the eight SF-12v2 subscale has a scoring range from 0 to 100; a higher score indicates better HRQOL.
Time frame: Baseline, immediately after the treatment
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