Changes in well-being after myocardial infarction: Does coping matter?

Purpose: This study explores changes in emotional component of subjective well-being (SWB) of patients after their first myocardial infarction (MI) and two kinds of mechanisms: attribution of positive (PA) and negative (NA) affect and a mediation effect of coping.

Methods: Affect and coping strategies (problem-, emotion-, and avoidance-focused) were assessed in 121 male patients (age 52.26 ± 7.08 years) a few days after the first MI and then 1 and 6 months later. The indicator of emotional SWB was affect balance, calculated as the ratio of PA to NA. Mediation was tested using the PROCESS macro.

Results: The affect balance changed over time, from a predominance of negativity a few days post-MI to more positive 1 and 6 months later (F 2, 119 = 21.87, p < 0.001). The results of parallel multiple mediation showed a mediating effect of emotion-focused coping on the changes in affect balance over time. Separate analyses for PA and NA showed the same results for NA. Problem-focused coping mediated PA changes in the early post-hospitalization period.

Conclusions: Myocardial infarction may activate PA alongside the NA, but the predominance of PA over NA in both early and late post-hospitalization period was minimal. Affect balance appeared to be largely dependent on NA and its changes. Coping strategies partly mediated the changes in well-being, providing a basis for practical interventions.