Living alone predicts 30-day hospital readmission after coronary artery bypass graft surgery
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Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit
Published on: September 30, 2020
Barbara M Murphy1, Peter C Elliott, Michael R Le Grande
1Heart Research Centre, The Royal Melbourne Hospital, Melbourne, Victoria, Australia. barbara.murphy@heartresearchcentre.org
Insights
Living alone is the primary risk factor for 30-day hospital readmission after coronary artery bypass graft surgery (CABGS). Patients living alone are over three times more likely to be readmitted, highlighting a need for targeted post-discharge support.
Area of Science:
- Cardiology
- Psychosocial Health
- Health Services Research
Background:
- Previous research identified medical factors and disease severity as predictors of early hospital readmission after coronary artery bypass graft surgery (CABGS).
- Limited investigation into psychosocial predictors of readmission post-CABGS.
- This study aimed to identify medical, sociodemographic, and psychosocial predictors of 30-day hospital readmission.
Purpose of the Study:
- To investigate predictors of 30-day hospital readmission following coronary artery bypass graft surgery (CABGS).
- To determine the influence of medical, sociodemographic, and psychosocial factors on early readmission.
- To identify specific patient groups at higher risk for readmission after CABGS.
Main Methods:
- A cohort of 181 patients awaiting CABGS completed self-report questionnaires pre-surgery and at 2 and 6 months post-surgery.
- Data collected included medical history, sociodemographic information, and psychosocial factors like anxiety.
- Statistical analyses, including logistic regression, were used to identify predictors of 30-day readmission.
Main Results:
- 14.4% of patients (26 out of 181) were readmitted within 30 days.
- Readmitted patients were older, more likely to be unmarried, live alone, have a history of hypertension, and report higher pre-surgery anxiety.
- Logistic regression revealed that living alone was the sole significant unique predictor of 30-day readmission (OR=3.42, P=0.008).
Conclusions:
- Living alone is the most significant risk factor for early hospital readmission after CABGS.
- Patients living alone face over three times the risk of readmission compared to those living with others.
- Targeted interventions and support systems for patients living alone are recommended to reduce readmission rates.
Background:
Earlier studies show that medical factors and disease severity predict early readmission to hospital after coronary artery bypass graft surgery (CABGS). Few studies have investigated psychosocial predictors. This study investigated medical, sociodemographic and psychosocial predictors of 30-day hospital readmission.
Methods:
A consecutive sample of 181 patients wait-listed for CABGS completed self-report questionnaires before surgery, and at 2 and 6 months after surgery.
Results:
Twenty-six (14.4%) patients were readmitted within 30 days of hospital discharge. Readmitted patients were older (t=2.12, df=179, P=0.035), and more likely to be unmarried (chi=5.80, df=1, P=0.016), live alone (chi=8.33, df=1, P=0.004), have a history of hypertension (chi=2.731, df=1, P=0.098) and have higher anxiety before surgery (t=1.67, df=175, P=0.097). When these variables were entered into a backward stepwise logistic regression, the only significant unique predictor of 30-day readmission was living alone (Wald=7.08, odds ratio=3.42, P=0.008). Patients living alone were over three times more likely than those living with others to be readmitted to hospital. Disease severity and other medical factors were not associated with readmission.
Conclusion:
Living alone was identified as the single most important risk factor for early readmission after CABGS. Patients who live alone may benefit from additional support during early convalescence. Intervention studies could explore support options for these patients.
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