Potential Mediators of a School-Based Digital Intervention Targeting Six Lifestyle Risk Behaviours in a Cluster Randomised Controlled Trial of Australian Adolescents

1Citations
Citations of this article
81Readers
Mendeley users who have this article in their library.

Abstract

Lifestyle risk behaviours—physical inactivity, poor diet, poor sleep, recreational screen time, and alcohol and tobacco use—collectively known as the “Big 6” emerge during adolescence and significantly contribute to chronic disease development into adulthood. To address this issue, the Health4Life program targeted the Big 6 risk behaviours simultaneously via a co-designed eHealth school-based multiple health behaviour change (MHBC) intervention. This study used multiple causal mediation analysis to investigate some potential mediators of Health4Life’s effects on the Big 6 primary outcomes from a cluster randomised controlled trial of Health4Life among Australian school children. Mediators of knowledge, behavioural intentions, self-efficacy, and self-control were assessed. The results revealed a complex pattern of mediation effects across different outcomes. Whilst there was a direct effect of the intervention on reducing moderate-to-vigorous physical activity risk, the impact on sleep duration appeared to occur indirectly through the hypothesised mediators. Conversely, for alcohol and tobacco use, both direct and indirect effects were observed in opposite directions cancelling out the total effect (competitive partial mediation). The intervention’s effects on alcohol and tobacco use highlighted complexities, suggesting the involvement of additional undetected mediators. However, little evidence supported mediation for screen time and sugar-sweetened beverage intake risk. These findings emphasise the need for tailored approaches when addressing different risk behaviours and designing effective interventions to target multiple health risk behaviours. The trial was pre-registered with the Australian and New Zealand Clinical Trials Registry: ACTRN12619000431123.

References Powered by Scopus

Intrinsic and Extrinsic Motivations: Classic Definitions and New Directions

10346Citations
N/AReaders
Get full text

Reconsidering Baron and Kenny: Myths and truths about mediation analysis

8540Citations
N/AReaders
Get full text

Short screening scales to monitor population prevalences and trends in non-specific psychological distress

7517Citations
N/AReaders
Get full text

Cited by Powered by Scopus

Mediated effects of LIFE4YOUth—a mobile health intervention for multiple lifestyle behavior change among high school students in Sweden: findings from a randomized controlled trial

0Citations
N/AReaders
Get full text

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Cite

CITATION STYLE

APA

O’Dean, S. M., Sunderland, M., Smout, S., Slade, T., Chapman, C., Gardner, L. A., … Champion, K. E. (2024). Potential Mediators of a School-Based Digital Intervention Targeting Six Lifestyle Risk Behaviours in a Cluster Randomised Controlled Trial of Australian Adolescents. Prevention Science, 25(2), 347–357. https://doi.org/10.1007/s11121-023-01616-z

Readers' Seniority

Tooltip

PhD / Post grad / Masters / Doc 10

67%

Lecturer / Post doc 3

20%

Professor / Associate Prof. 2

13%

Readers' Discipline

Tooltip

Nursing and Health Professions 5

38%

Social Sciences 4

31%

Psychology 2

15%

Business, Management and Accounting 2

15%

Save time finding and organizing research with Mendeley

Sign up for free