The association between frailty of older stroke patients during hospitalization and one-year all-cause mortality: A multicenter survey in China

Objective: Frailty is a common geriatric syndrome defined as multiple deficits, impairing the capacity to figure out insult. Previous studies have reported a significant association between frailty and mortality in stroke patients. This study aimed to explore the association between frailty and mortality among older Chinese stroke patients. Methods: This study was a secondary analysis of a multicenter prospective cohort study conducted in older Chinese inpatients from October 2018 to February 2020, and patients with a primary diagnosis of stroke including hemorrhage and ischemia, were included in our study. Frailty of older inpatients with stroke from six hospitals was measured by the FRAIL scale, and a one-year follow-up was performed by well-trained nurses of these hospitals via telephone. Multivariable logistic regression was used to detect the association between frailty and one-year mortality. Results: A total of 530 stroke patients with an average age of 72.94 (SD = 5.79) years were included in the present study. There were 37 (7.0%) hemorrhagic strokes and 493 (93.0%) ischemic strokes, with 228 (43.0%) females in this population. The prevalence of frailty was 22.5%. In the logistic regression model with adjustment for age, sex, instrumental activities of daily living (IADL), basic activities of daily living (ADL), education, history of falls, BMI, smoking, alcohol consumption, low handgrip strength, type of stroke and polypharmacy, stroke patients with frailty had an increased risk of one-year mortality compared to those without frailty (OR = 3.38, 95% CI: 1.22–9.37, P = 0.019). Conclusion: Our study indicated that frailty was an independent risk factor for one-year all-cause mortality among older stroke patients in China. Frailty may be an essential factor for clinicians to consider before making a comprehensive treatment, and corresponding mixed interventions, including exercise training and nutritional programs, need to be conducted among older stroke patients.