Screening Depression in Ischemic Heart Disease: Gender Differences and Psychosocial Implications Using a Self-Developed Questionnaire

Background/Objectives: Ischemic heart disease (IHD) is a major cause of morbidity and mortality worldwide, and it is frequently associated with depression, which can negatively impact both clinical outcomes and quality of life. The relationship between IHD and depression is complex, with gender differences influencing the severity of depression and willingness to seek psychological support. This study aims to evaluate the prevalence and severity of depression in IHD patients using the Depression Assessment in Ischemic Heart Disease Questionnaire (DA-IHDQ) and to explore gender differences in depression severity and help-seeking behavior. Methods: This cross-sectional study involved 103 patients diagnosed with IHD (62 males, 41 females), with data collected from two general practice clinics in Arad, Romania, between November 2023 and November 2024. Participants completed the DA-IHDQ, a self-developed questionnaire designed to screen for depression in IHD patients. The questionnaire categorizes depression severity into four grades: minimal to no depression, mild depression, moderate depression, and severe depression. The study also assessed participants’ interest in receiving psychological support. Descriptive and inferential statistical analyses were performed, and the psychometric properties of DA-IHDQ, including its reliability (Cronbach’s α = 0.957) and diagnostic accuracy (sensitivity = 90.0%, specificity = 98.8%), were evaluated. Results: Mild depression was the most common grade in both male and female IHD patients, while severe depression was the least prevalent. Males had a higher overall frequency of depression, with more cases of mild depression, whereas females had a higher proportion of moderate and severe depression. Additionally, males demonstrated significantly lower interest in psychological or psychiatric help, while females showed greater willingness to seek mental health support. The DA-IHDQ exhibited strong internal consistency and high diagnostic accuracy in identifying depressive symptoms in IHD patients. The DA-IHDQ exhibited strong internal consistency and high diagnostic accuracy in identifying depressive symptoms in IHD patients. Conclusions: The findings highlight the high prevalence of depression in IHD patients and the gender disparities in mental health engagement, emphasizing the need for targeted psychological interventions. The DA-IHDQ demonstrated strong psychometric properties and could serve as an effective screening tool for depression in IHD care. The DA-IHDQ demonstrated strong psychometric properties and could serve as an effective screening tool for depression in IHD care. Future research should explore the barriers to help-seeking among male IHD patients and develop gender-sensitive strategies to improve access to mental health services.