Self-Efficacy and Medication Adherence in Patients With Coronary Artery Disease: A Descriptive Study
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: No intervention.
- Who it may be relevant to
- Registry conditions: Coronary Artery Disease. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Investigation of the Relationship Between Self-Efficacy and Adherence to Medication in Individuals With Coronary Artery Disease: A Descriptive and Correlational Study
Overview
This descriptive study aims to examine the relationship between self-efficacy and medication adherence in individuals with coronary artery disease (CAD). The study will be conducted between March and October 2025 at Adıyaman University Training and Research Hospital with a planned sample size of 135 participants. Data will be collected using a Descriptive Information Form, the Self-Efficacy for Managing Chronic Disease Scale, and the Medication Adherence Report Scale (MARS).
Detailed description
Coronary artery disease (CAD) remains one of the leading causes of death worldwide. Managing CAD requires long-term treatment adherence and lifestyle changes. Self-efficacy, which reflects an individual's belief in their ability to perform specific health behaviors, plays a key role in disease management. In CAD patients, high levels of self-efficacy have been associated with better treatment adherence, improved symptom management, and successful adoption of healthy behaviors.
This descriptive study is designed to investigate the relationship between self-efficacy and medication adherence in individuals diagnosed with CAD. The study will be carried out at Adıyaman University Training and Research Hospital between March and October 2025. The target population includes patients who have been diagnosed with CAD (e.g., angina pectoris, myocardial infarction) for at least one year and meet the inclusion criteria. Based on a power analysis using G\*Power software (effect size f² = 0.15, α = 0.05, power = 0.90), the required sample size is calculated as 112. However, accounting for possible data loss or participant dropout, the final sample size is set at 135.
Data collection tools include:
Descriptive Information Form to assess demographic and clinical characteristics,
The 6-Item Self-Efficacy for Managing Chronic Disease Scale, validated in Turkish by İncirkuş and Özkan Nahcivan (Cronbach's alpha = 0.90),
Medication Adherence Report Scale (MARS), adapted to Turkish by Temeloğlu Şen et al. (Cronbach's alpha = 0.78).
The findings are expected to contribute to the literature and guide healthcare professionals, particularly nurses, in planning educational and counseling services to improve self-efficacy and medication adherence among CAD patients.
Interventions
- Other No intervention
This is a descriptive, observational study. No intervention or experimental procedure was performed. Data were collected using self-administered questionnaires without influencing participant behavior or treatment.
Primary outcome measures
- Self-efficacy score for chronic disease management [Time frame: At the time of data collection (March 2025 - October 2025)]
Secondary outcome measures (1)
- Medication adherence score [Time frame: At the time of data collection (March 2025 - October 2025)]
Eligibility criteria
Inclusion criteria
- Being 18 years of age or older
Having been diagnosed with Coronary Artery Disease (angina pectoris, unstable angina, myocardial infarction) at least 1 year ago
Being followed
Being able to communicate in Turkish
Voluntarily agreeing to participate in the study
Having no diagnosed mental disorder
Exclusion criteria
- Having a primary diagnosis other than Coronary Artery Disease
Being unable to complete the questionnaires due to mental health problems
Providing incomplete data or withdrawing from the study
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Other
Study locations
Turkey (Türkiye) · 1 center
- Adiyaman University Training and Research Hospital — Adıyaman
Publications
- Fors A, Ulin K, Cliffordson C, Ekman I, Brink E. The Cardiac Self-Efficacy Scale, a useful tool with potential to evaluate person-centred care. Eur J Cardiovasc Nurs. 2015 Dec;14(6):536-43. doi: 10.1177/1474515114548622. Epub 2014 Aug 22. PMID 25149667
Identifiers
NCT: NCT06943157 · HKU-KAH-2025-01