JMIR Publications

ABSTRACT

Background:

Stress is one of the most common reasons for sick leave. Web-based interventions have the potential to reach an unlimited number of users at a low cost and have been shown effective at addressing several health-related problems. To handle stress on an individual level is about behavior change. To support behavior change in stress management My Stress Control (MSC) was developed. The development of MSC was based on several health psychology theories and models but central in the development was Social Cognitive Theory, Theory of Reasoned Action, Theory of Planned Behavior, Transactional Theory of Stress and Coping and the Transtheoretical Model and Stages of Change. MSC is a fully automated program. The program is tailored to the user's specific need for stress management and behavior change.

Objective:

The aim of this study was to conduct a randomized controlled trial to evaluate the extent to which MSC affected perceived stress in persons experiencing work-related stress.

Methods:

This study was conducted as a randomized controlled trial with two arms. Study participants were recruited by visiting worksites and workplace meetings. Participants were assigned to intervention or wait list group. Web-based questionnaires were used pre- and post-intervention to collect data. Perceived stress measured with the Perceived Stress Scale (PSS-14) was the primary outcome measurement. Analyses were conducted for both between- and within-group changes.

Results:

A total of 92 participants were included in this study, 48 in intervention group and 44 in waitlist group. Twelve participants in the intervention group and 19 participants in the waitlist group completed the post intervention assessment. There were no significant effects on perceived stress between the intervention and wait list groups or within the groups. A small effect size (dCohen=0.25) was found when comparing mean change over time on the primary outcome measure between the intervention and wait list groups. Additionally, a small effect size was found between pre- and post-intervention assessment within the intervention group (dCohen=0.38) as well as within the wait list group (dCohen=0.25).

Conclusions:

It is still uncertain what effect My Stress Control (MSC) may have on perceived stress. Because adherence was low in the intervention group, elements or features that facilitate adherence must be further developed before firmer conclusions of the effect of MSC can be studied. Clinical Trial: This RCT was registered at clinicaltrials.gov, protocol record 2015/0646.