Association of Frailty and Depressive Symptoms With the Establishment of Exercise Habits in Patients Undergoing Outpatient Cardiac Rehabilitation.

To assess whether patients undergoing outpatient cardiac rehabilitation who have frailty and depressive symptoms at discharge are less likely than those without these condition to establish positive exercise habits. A retrospective cohort study that involved the assessment of frailty and depressive symptoms at the end of a 3-month course of cardiac rehabilitation. Frailty was defined as the patient noting 3 or more items using the criteria of Fried et al, while depressive symptoms were delineated by Patient Health Questionnaire-9 (PHQ-9) scores of 10 or greater. General hospital (1048 beds) with outpatient cardiac rehabilitation in a suburb location in Japan. 344 individuals underwent outpatient cardiac rehabilitation during the January 1, 2019-June 1, 2022, study period. Of these, 48 individuals were excluded because they did not complete the course and 54 were excluded because they lacked outcome data. Finaly, 242 individuals (mean age: 68.2±11.1 years) were analyzed. Not applicable. The establishment of an exercise habit defined as exercising at least 2 days per week and 30 minutes per day. Participants were divided into 4 groups depending upon the presence or absence of frailty and depressive symptoms: non-frail with no reported depressive symptoms (173 subjects), frailty-only (21 subjects), depressive symptoms-only (38 subjects), and frailty and depressive symptoms (10 subjects). Compared with patients who were not depressed and not frail, those with frailty only (odds ratio [OR]: 0.43, 95% confidence interval: 0.21-0.88, This study, while limited by the small number of subjects with both frailty and depressive symptoms, indicates that interventions to prevent frailty during hospitalization and cardiac rehabilitation may be essential for cardiovascular disease patients with frailty whether or not associated with depressive symptoms.

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