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Abstract
The present study assessed the effects of expressive writing on health-related quality of life (HRQOL) following myocardial infarction (MI). In addition, potential moderators of the effects were examined. Eighty-nine MI patients were randomised to intervention (N=43) or control (N=46) groups. The intervention group wrote (20 minutes/day for 3 days) about their thoughts and feelings regarding their MI, and the control group wrote about daily activities a year previous to their MI. The outcome measure was HRQOL, and the moderating variables examined were psychological distress, Type D personality and coping. Measures were completed pre-randomisation, post-intervention and 3 months later. Three months post-intervention, the intervention group had significantly higher HRQOL. Type D moderated the effect, such that those high on Type D reported greater benefits. Expressive writing is a beneficial intervention that may enhance HRQOL. However, it may be more beneficial for people characterised by high levels of negative affect and emotional suppression.