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Published in: Quality of Life Research 12/2021

Open Access 01-12-2021

Effects of school-based mindfulness intervention on health-related quality of life: moderating effect of gender, grade, and independent practice in cluster randomized controlled trial

Authors: Maarit Lassander, Mirka Hintsanen, Sakari Suominen, Sari Mullola, Tero Vahlberg, Salla-Maarit Volanen

Published in: Quality of Life Research | Issue 12/2021

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Abstract

Object

We investigated the impact of a school-based 9-week mindfulness program vs. active control program (relaxation) and inactive control group on children’s self-reported Health-Related Quality of Life (HRQoL) moderated by gender, grade, and independent practice.

Method

In total 3519 (50/50% boys/girls) Finnish students aged 12–15 years from 56 schools were randomized into mindfulness intervention, active, and inactive control groups. HRQoL was measured at baseline, at 9 weeks, and at 26 weeks and analyzed with multilevel linear modeling.

Results

Significant improvement on HRQoL was found (β = mean difference) (β = 1.587, 95% CI 0.672–2.502, p < 0.001) after 9 weeks and at 26 weeks of follow-up among students in the mindfulness group as compared to the active control group. Moderating effects on HRQoL were found for gender, grade, and independent practice: girls, 7th and 8th grade students, and students with regular independent mindfulness practice benefited most.

Conclusions

Gender and developmental stage may moderate the effects of mindfulness interventions on HRQoL and offer guidance in designing effective promotive interventions for children and adolescents.

Trial Registration Information

Healthy Learning Mind—a school-based mindfulness and relaxation program: a study protocol for a cluster randomized controlled trial (RCT) ISRCTN18642659 retrospectively registered on 13 October 2015. The full trial protocol can be accessed at http://​rdcu.​be/​t57S.
Appendix
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Metadata
Title
Effects of school-based mindfulness intervention on health-related quality of life: moderating effect of gender, grade, and independent practice in cluster randomized controlled trial
Authors
Maarit Lassander
Mirka Hintsanen
Sakari Suominen
Sari Mullola
Tero Vahlberg
Salla-Maarit Volanen
Publication date
01-12-2021
Publisher
Springer International Publishing
Published in
Quality of Life Research / Issue 12/2021
Print ISSN: 0962-9343
Electronic ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-021-02868-4

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