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Table 7 Bivariate Spearman-Rho correlations

From: Criterion validity and sensitivity to change of the Early Rehabilitation Index (ERI): results from a German multi-center study

Variable ERI upon admission (−325 to 0) ERI at discharge (−325 to 0) ΛERI (admission-discharge)
BI upon admission (0–100)    
 r 0.575** 0.304** −0.349**
 p 0.000 0.000 0.000
 n 754 754 754
BI at discharge (0–100)    
 r 0.262** 0.502** 0.154**
 p 0.000 0.000 0.000
 n 754 754 754
ΛBI    
 r 0.060 0.442** 0.320**
 p 0.102 0.000 0.000
 n 754 754 754
GCS upon admission (3–12)    
 r 0.466** 0.331** −0.243**
 p 0.000 0.000 0.000
 n 715 715 715
GCS at discharge (3–12)    
 r 0.353** 0.553** 0.086*
 p 0.000 0.000 0.025
 n 689 689 689
ΛGCS (discharge-admission)    
 r −0.202** 0.087* 0.349**
 p 0.000 0.023 0.000
 n 688 688 688
CRS upon admission (0–24)    
 r 0.444** 0.331** −0.213**
 p 0.000 0.000 0.000
 n 689 689 689
CRS at discharge (0–24)    
 r 0.330** 0.526** 0.092*
 p 0.000 0.000 0.018
 n 664 664 664
ΛCRS (discharge-admission)    
 r −0.221** 0.010 0.307**
 p 0.000 0.807 0.000
 n 663 663 663
GOSE (discharge) (1–8)    
 r 0.293** 0.472** 0.093*
 p 0.000 0.000 0.011
 n 754 754 754
Age (years)    
 r 0.075* 0.002 −0.084*
 p 0.039 0.967 0.021
 n 754 754 754
Disease duration (days prior to admission)    
 r −0.131** −0.093* 0.019
 p 0.000 0.011 0.604
 n 749 749 749
Length of stay (days)    
 r −0.367** 10.152** 0.327**
 p 0.000 0.000 0.000
 n 754 754 754
  1. * p < 0.05. ** p < 0.01, r = Spearman Rho correlation coefficient, p = p value, n = sample size