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Translational delivery of Cool Little Kids to prevent child internalising problems: Randomised controlled trial
Jordana K Bayer1,2,3, Ruth Beatson1,2, Lesley Bretherton2,3,4
11 School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia.
Insights
A parenting program for inhibited preschoolers did not prevent internalizing problems at school entry. However, it reduced internalizing symptoms in children with anxious parents, suggesting targeted interventions may be beneficial.
Area of Science:
- Child Psychology
- Developmental Psychology
- Public Health Interventions
Background:
- Temperamental inhibition in preschoolers is a risk factor for internalizing problems.
- Early intervention programs aim to mitigate these risks.
- Population-delivered programs offer scalable solutions for widespread impact.
Purpose of the Study:
- To evaluate the effectiveness of a population-delivered parenting program in preventing internalizing problems in at-risk preschoolers.
- To assess the program's impact on child anxiety disorders, internalizing symptoms, parenting practices, and parent mental health.
Main Methods:
- A randomized controlled trial was conducted across 307 preschool services in Melbourne, Australia.
- 545 parents of inhibited 4-year-olds participated, with 498 retained at 1-year follow-up.
- The intervention group received the 'Cool Little Kids' parenting program; the control group did not.
Main Results:
- No significant difference in child anxiety disorders was observed between groups (44.2% vs 50.2%).
- Internalizing problems were significantly reduced in the intervention group (24.2% vs 33.0% abnormal; p=0.014).
- A priori tests indicated potential benefits for children with anxious parents, reducing anxiety and internalizing symptoms.
Conclusions:
- The population-delivered 'Cool Little Kids' program did not significantly impact overall population outcomes for internalizing problems at school entry.
- Emerging effects were noted for inhibited children with anxious parents, warranting further investigation.
- Long-term outcomes of the trial will continue to be monitored into mid-childhood.
Objective:
To determine whether a population-delivered parenting programme assists in preventing internalising problems at school entry for preschool children at-risk with temperamental inhibition.
Methods:
Design: a randomised controlled trial was used.
Setting:
the setting was 307 preschool services across eight socioeconomically diverse government areas in Melbourne, Australia.
Participants:
a total of 545 parents of inhibited 4-year-old children: 498 retained at 1-year follow up. Early intervention: Cool Little Kids parenting group programme was implemented. Primary outcomes: the primary outcomes were child DSM-IV anxiety disorders (assessor blind) and internalising problems.
Secondary Outcomes:
the secondary outcomes were parenting practices and parent mental health.
Results:
At 1-year follow up (mean (standard deviation) age = 5.8 (0.4) years), there was little difference in anxiety disorders between the intervention and control arms (44.2% vs 50.2%; adjusted odds ratio = 0.86, 95% confidence interval = [0.60, 1.25], p = 0.427). Internalising problems were reduced in the intervention arm (Strengths and Difficulties Questionnaire: abnormal - 24.2% vs 33.0%; adjusted odds ratio = 0.56, 95% confidence interval = [0.35, 0.89], p = 0.014; symptoms - mean (standard deviation) = 2.5 (2.0) vs 2.9 (2.2); adjusted mean difference = -0.47, 95% confidence interval = [-0.81, -0.13], p = 0.006). Parents' participation in the intervention was modest (29.4% attended most groups, 20.5% used skills most of the time during the year). A priori interaction tests suggested that for children with anxious parents, the intervention reduced anxiety disorders and internalising symptoms after 1 year.
Conclusion:
Offering Cool Little Kids across the population for inhibited preschoolers does not impact population outcomes after 1 year. Effects may be emerging for inhibited children at highest risk with parent anxiety. Trial outcomes will continue into mid-childhood.
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