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Effectiveness of an Online Mindfulness-Based Intervention for Improving Mental Health in Undergraduate Students: A Randomized Clinical Trial

Fabiane Dolphine Fuentes Penachiotti, Mirian Yamaguchi, Bráulio Henrique Magnani Branco, Gabriela Alves, Felipe Rodrigues, Frederico Mariano, Adi Mana, Shifra Sagy, Rute Grossi Milani

International Journal of Environmental Research and Public Health June 30, 2026 DOI: 10.3390/ijerph23070853 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Randomized clinical trial Peer reviewed
Sample size 317
Population Brazilian undergraduate pedagogy students enrolled in distance education
Intervention Mindfulness-Based Program for Undergraduate Students
Duration Eight-week intervention
Topics Anxiety Meditation
Keywords Mental health Randomized controlled trial Psychological intervention Context archaeology Intervention counseling Depression economics Clinical psychology Physical therapy Health education Clinical trial Brief intervention
Key findings The online mindfulness intervention significantly improved positive mental health and reduced anxiety and depression compared with controls.

Abstract

This randomized clinical trial evaluated the effectiveness of an online mindfulness-based intervention in improving positive mental health and reducing symptoms of anxiety and depression among undergraduate students, in the context of rising global mental health challenges and limited access to care, particularly in low- and middle-income settings. Brazilian undergraduate pedagogy students enrolled in distance education were randomly assigned (1:1) to an eight-week Mindfulness-Based Program for Undergraduate Students or a control group. Primary outcomes included positive mental health, anxiety, and depression, while secondary outcomes were sense of coherence, resilience, mindfulness, and perceived stress. Analyses followed the intention-to-treat principle. A total of 317 students were randomly allocated to the intervention group (n = 157) or the control group (n = 160), and 215 (67.8%) completed the study, with comparable baseline characteristics across groups. Compared with controls, the intervention significantly improved positive mental health and reduced anxiety and depression (all p < 0.001), while also increasing sense of coherence, resilience, and mindfulness and reducing perceived stress (all p < 0.05). These findings suggest that scalable, low-cost, online mindfulness interventions can simultaneously enhance positive mental health and reduce psychological distress, supporting their potential as preventive mental health strategies in higher education settings.

Comparable studies

Other randomized controlled trials on meditation, most cited first.

Study Year Design Participants
Alterations in Brain and Immune Function Produced by Mindfulness Meditation Healthy employees in a work environment 2003 Randomized controlled trial n = 41
Prevention of relapse/recurrence in major depression by mindfulness-based cognitive therapy. Recovered recurrently depressed patients 2000 Randomized controlled trial n = 145
Open hearts build lives: Positive emotions, induced through loving-kindness meditation, build consequential personal resources. Working adults 2008 Randomized controlled trial n = 139
Short-term meditation training improves attention and self-regulation Undergraduate Chinese students 2007 Randomized controlled trial n = 40
Mindfulness-Based Cognitive Therapy for Depression: Replication and Exploration of Differential Relapse Prevention Effects. Recovered recurrently depressed patients 2004 Randomized controlled trial n = 73

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