Subgroup Differences and Determinants of Patient-Reported Mental and Physical Health in Patients With Ischemic Heart Disease: Results From the DenHeart Study

BACKGROUND: A growing population is living with ischemic heart disease (IHD). Patient-reported outcomes (PROs) are reliable prognostic tools. Studies exploring PROs are needed to identify vulnerable patients and guide targeted healthcare strategies.

OBJECTIVES: The aims of this study were to (i) describe PROs at hospital discharge across 3 diagnostic subgroups: (1) chronic IHD/stable angina, (2) non-ST-elevation myocardial infarction (non-STEMI)/unstable angina, and (3) ST-elevation myocardial infarction (STEMI), and (ii) examine determinants for PROs at hospital discharge in patients with IHD.

METHODS: This study included a national cohort with register-data linkage including 14 115 adults with IHD discharged from Danish heart centers. Eligible patients (n = 13 476) were invited to complete a questionnaire, and 7 167 (53%) responded. Questionnaires included the Medical Outcome Study Short-Form 12, the Hospital Anxiety and Depression Scale, EuroQoL, HeartQoL, the Edmonton Symptom Assessment Scale, and ancillary questions. Sociodemographic and clinical characteristics were obtained from national registers. Student t test, χ test, and adjusted linear and logistic regression analyses were conducted to investigate subgroup differences, and adjusted linear and logistic regression analyses were conducted to explore determinants for PROs.

RESULTS: Statistically significant subgroup differences were found, with groups reporting worst to best scores for most of PROs being as follows: chronic IHD/stable angina, non-STEMI/unstable angina, and STEMI. Symptoms of anxiety were highly prevalent in the non-STEMI/unstable angina group, with 33.8% exceeding a Hospital Anxiety and Depression Scale-Anxiety cutoff score indicating a possible anxiety disorder. Determinants for worse PROs included female sex, lower educational level, obesity, and poor physical fitness.

CONCLUSIONS: Significant differences in PROs across IHD subgroups were observed and determinants for poor outcomes suggested. Results may guide differentiated care initiatives and resource allocation for preventative strategies.