Peer-reviewed article

Happiness Toolkit in a paediatric outpatient setting for children with social, emotional, behavioural and/or mental health difficulties: a prospective cohort study.

Eustace K, McCrory SA, Sharif F · 19 Sept 2026

Summary

Written by AI, not yet AICS's view · claude-haiku-4-5-20251001

This study tested the Happiness Toolkit, a simple family-delivered intervention for children aged 0-16 with emotional, behavioural or mental health difficulties in an Irish hospital outpatient setting. The toolkit comprises six evidence-based activities practised for 5 minutes in the morning and evening. Most families consented to participate, and nearly three-quarters of parents reported their child's mood improved within 6 weeks, with high parental satisfaction and no harmful effects.

Key points

86.6% of families approached consented to participate; 39.2% of children screened positive for social, emotional, behavioural or mental health difficulties
At 6 weeks: 73.9% of parents reported improved child mood, 95.2% reported positive experience, 97.8% would recommend the toolkit
At 6 months: 61.5% reported sustained mood improvement and 92.3% would still recommend, with 13.8% response rate
No adverse events reported at either follow-up time point
The toolkit was successfully embedded in routine paediatric outpatient care with high feasibility and acceptability

Limitations

The study had low follow-up response rates (48.9% at 6 weeks, 13.8% at 6 months), which limits confidence in the sustained outcomes. This was a single-site cohort study with no comparison group, so it cannot determine whether improvements were due to the toolkit or other factors.

Abstract

Objective To evaluate the feasibility, acceptability and clinical outcomes of the Happiness Toolkit (HTK), a structured, low-intensity, family-delivered intervention for children aged 0-16 years screening positive for social, emotional, behavioural and/or mental health difficulties (SEMHD) in a paediatric outpatient setting. Design Single-site prospective cohort study; validated age-specific baseline screening, parent-reported outcomes at 6 weeks and 6 months. Setting General paediatric outpatient department, secondary hospital, Ireland. Participants Consecutive paediatric outpatient attendees screening positive for SEMHD on the Ages and Stages Questionnaires: Social-Emotional, Second Edition (under 6 years) or Screen for Child Anxiety Related Emotional Disorders questionnaire (6-16 years) were enrolled for intervention. Interventions The HTK comprises six evidence-based components practised for 5 minutes morning and evening, introduced during routine outpatient consultation. Main outcome measures Primary: consent rate, positive screen rate and 6-week response rate (feasibility); parental willingness to recommend (acceptability). Secondary: parent-reported functional changes at 6 weeks and 6 months, component uptake and adverse events. Results 240 of 277 families approached across 16 outpatient clinics consented (86.6%); 94 children screened positive for SEMHD (39.2%) and received the HTK. At 6-week follow-up (n=46; 48.9% response rate), 95.2% of parents reported a positive or very positive experience, 73.9% noted improved mood in their child, 43.5% reduced screen time and 37.0% improved sleep patterns. 97.8% would recommend, with no adverse events. At 6-month follow-up (n=13; 13.8% response rate), 61.5% reported sustained child mood improvement and 92.3% would still recommend. Conclusions This study demonstrates strong feasibility and high parental acceptability for the HTK when embedded in routine paediatric outpatient care. Parent-reported improvements at 6 weeks and no adverse events at both time points support progression to a controlled evaluation. In Ireland, 4462 children await Child and Adolescent Mental Health Services and over 28 000 await primary care psychology; the HTK represents a promising, pragmatic early and bridging support for emerging SEMHD.

Findings the Hub has extracted

Each claim below is labelled by its type of design and links back to this report.

DevelopmentProtection

Problem

Children aged 0-16 years with social, emotional, behavioural and/or mental health difficulties lack access to timely mental health services, with thousands waiting for specialist care in Ireland

Intervention: Happiness Toolkit: a structured, low-intensity, family-delivered intervention comprising six evidence-based components, each practised for 5 minutes in the morning and evening, introduced during routine outpatient consultation
Population: Children aged 0-16 years attending general paediatric outpatient clinics who screened positive for social, emotional, behavioural and/or mental health difficulties (n=94 enrolled)

Key finding

At 6 weeks (n=46): 73.9% of parents reported improved child mood, 95.2% reported positive or very positive experience, 97.8% would recommend