Frailty in elderly inpatients with cardiovascular disease: an exploration of associated factors

Abstract

Aims: Older patients with cardiovascular diseases (CVDs) are more likely to develop frailty. Few studies have investigated frailty status, and its multiple associated factors, in this population. The aim of the present study was to explore frailty status, and its multidimensional associated factors, in elderly inpatients with CVDs.

Methods and results: In this cross-sectional study, 1021 inpatients with CVDs aged ≥60 years old were recruited through convenience sampling from multiple hospitals in Suzhou, China. The FRAIL scale was used to assess frailty. A self-designed questionnaire gathered sociodemographic, clinical, and health-related information related to the physiological, psychological, and social dimensions of frailty. Among the 629 elderly inpatients with CVDs (73.64 ± 7.93 years old) who met inclusion criteria and completed the assessments, 176 (28.0%) were classified as frail. Univariate analyses demonstrated that the proportion of frailty was significantly associated with multiple factors. Logistic regression analysis indicated that, compared to their counterparts, the risk of frailty was higher in participants with cardiac function classes II, III, and IV [odds ratio (OR) = 1.866, 3.393, and 6.351, respectively]; average and bad mastication function (OR = 2.534 and 2.945, respectively); and often or always using walking aids (OR = 2.713). Conversely, the risk of frailty was lower in participants with good nutritional status (OR = 0.879) and regular exercise habits (OR = 0.573), as compared with their counterparts.

Conclusion: Frailty in elderly inpatients with CVDs is common and associated with multiple physiological factors including cardiac function, mastication function, nutritional status, use of walking aids, and regular exercise habits.

Keywords: Cardiovascular diseases; Elderly; Frailty; Inpatients.