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Correlations between motor and functional tests and Barthel index or number of ICU days. (A) Barthel total score and sit-to-stand frequency at admission and discharge. (B) Barthel total score and mean grip strength at admission and discharge. (C) Grip strength and number of days spent in the ICU at admission and discharge. Spearman or Pearson tests were used according to conditions of normality on Shapiro–Wilk tests. Outliers beyond 2 standard deviations on Z-tests were excluded.
