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Table 2 Descriptive statistics (M indicates mean and STD indicates standard deviation) and pair wise correlation coefficient values for all variables (i.e. SNA variables, hospitalisation cost and readmission rate) used in this study

From: A study of physician collaborations through social network and exponential random graph

  [1] [2] [3] [4] [5]
[1] Degree centralisation  
  (M = 0.75 and STD = 0.13)  
[2] Betweenness centralisation −0.062     
  (M = 0.25 and STD = 0.14)  
[3] Network density 0.045 −0.046    
  (M = 0.27 and STD = 0.11)  
[4] Hospitalisation cost 0.112 −0.264* 0.282**   
  (M = 24009.9 and STD = 6783.3)  
[5] Readmission rate −0.373** −0.283** 0.358* 0.098  
  (M = 11.64 and STD = 8.48)  
  1. **. Correlation is significant at the 0.01 level (2-tailed).
  2. *. Correlation is significant at the 0.05 level (2-tailed).