The Impact of Intervention Based on Protection Motivation Theory on Treatment Adherence in Patients with Ischemic Heart Disease

Patients with ischemic heart disease (IHD) gradually reduce their follow-up treatment due to the vulnerable physical condition and high involvement with the disease-related treatment process. The purpose of this research was to investigate the effect of intervention based on the protection motivation theory (PMT) on treatment adherence in patients with IHD.

This quasi-experimental research used a pretest-posttest design with a control group. The statistical population included all patients with IHD referred to the Payambar Azam hospital in Bandar Abbas, Iran for more than once between March 2019 and May 2020. A total of 16 patients were selected through the matched targeted sampling and randomly assigned into two equal groups of experimental and control (n = 8 each). The test group received an intervention based on the PMT in six 90-minute sessions within 45 days. We used the Modanloo Treatment Adherence Questionnaire (TAQ), and the data were analyzed using the analysis of covariance (ANCOVA) in the SPSS23 statistical software.

The results of ANCOVA showed that the intervention based on the PMT significantly increased the treatment adherence and its subscales in patients with IHD (P<0.001).

Intervention based on the PMT can be used as an effective intervention to increase treatment adherence in patients with IHD, depending on proper nutrition training, self-care skills, awareness-raising, and relaxation exercises.