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Table 4 Comparison of robustness between the clinical frailty scale and the FRAIL Scale

From: Frailty as a predictor of hospital length of stay after elective total joint replacements in elderly patients

  FRAIL Scale
Clinical Frailty Scale   Robust Not robust
  Robust 11 29
  Not robust 2 45
  1. Cohen’s kappa: 0.245 (p = 0.002)