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the frail status of elderly hypertensive patients easily damages the function of many physiological systems. Objectives: we aimed to investigate the correlation between the frail status and lower extremity function of elderly hospitalized patients with hypertension. Methods: a total of 336 eligible subjects were assigned to frail, pre-frail and non-frail groups according to the "Frail" scale. Lower extremity function was assessed by the Short Physical Performance Battery including chair-sit-to-stand, three-posture balance and 6-meter gait speed tests. The influences of factors on frailty were evaluated using the Cox multivariate regression analysis. The correlation between frailty score and lower extremity function score was explored by Spearman's analysis. The values of factors for predicting frail status were analyzed by plotting receiver operating characteristic (ROC) curves. Results: the three groups had similar age, systolic blood pressure, and nutritional, sleepiness and lower extremity function statuses (p &lt; 0.05). Compared with the non-frail group, the lower extremity function score of the frail group was lower (p &lt; 0.05). Age, systolic blood pressure and sleepiness status were the independent risk factors of frailty (p &lt; 0.05), and lower extremity function parameters were independent protective factors (p &lt; 0.05). There were negative correlations between frail status and lower extremity function parameters (p &lt; 0.05). The area under the ROC curve was 0.850, and the optimal cutoff value was 7.80. Lower extremity function had a high value for predicting frail status. Conclusions: lower extremity function is negatively correlated with the frail status of elderly hospitalized patients with hypertension, as a protective factor of frailty, which can be used to predict frail status.

Correlation between frail status and lower extremity function in elderly inpatients with hypertension