The cut-off point of short physical performance battery score for sarcopenia in older cardiac inpatients

ObjectiveTo demonstrate the relationship between short physical performance battery (SPPB) and sarcopenia, and to determine the cut-off point for sarcopenia using SPPB scores in older cardiac inpatients.MethodsThis cross-sectional study included 74 older cardiac inpatients (mean age 78.2 years; 43.2% women). We evaluated the presence of sarcopenia and the SPPB before hospital discharge. We defined sarcopenia using the Asian Working Group for Sarcopenia-suggested diagnostic algorithm. The SPPB scores were categorised into three groups (0-6, 7-9, and 10-12). Logistic regression models were used to estimate the odds ratios (OR) and 95% confidence intervals (CI) of the relationships between various SPPB categories and the presence of sarcopenia using univariate and multivariate analyses. The cut-off point of SPPB score for determining sarcopenia was evaluated using a receiver operating characteristic curve.ResultsThe presence of sarcopenia in the 0-6, 7-9, and 10-12 of SPPB score groups were 87.5%, 78.6%, and 17.3%, respectively. After adjustments for conditions of cardiac diseases, the OR (95% CI) in reference to the patients with scores of 10-12 were 22.16 (1.53-321.45) in the patients with scores of 7-9, and 141.04 (1.90-10,481.96) in the patients with scores of 0-6. The cut-off point of SPPB score for determining sarcopenia was 9.5 (sensitivity, 0.92; specificity, 0.67; area under the curve, 0.84; 95% CI, 0.74-0.94; P < 0.01).ConclusionsThe SPPB score was significantly associated with sarcopenia. Additionally, the cut-off point of SPPB score for determining sarcopenia was 9/10 in older cardiac inpatients.