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Table 5 The results from high-order model (i.e. 2-star , 3-star , alternating-k-stars , alternating-k-triangles , alternating-k-two-paths model)

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

Effects Estimates stderr Est./stderr Estimates stderr Est./stderr Estimates stderr Est./stderr Estimates stderr Est./stderr Estimates stderr Est./stderr
Low cost
   N1    N2    N3    N4    N5  
2-star 0.04 0.01 6.25 0.12 0.04 2.66 −0.04 0.04 −0.97 0.03 0.01 2.02 −0.02 0.02 −0.84
3-star 0.00 0.00 0.24 0.00 0.00 0.86 0.01 0.00 2.55 0.00 0.00 −0.41 0.00 0.00 3.03
AS −1.95 0.42 −4.60 −2.39 1.24 −1.92 −1.24 0.61 −2.01 −1.36 0.38 −3.58 −3.55 1.23 −2.89
AT 1.28 0.10 12.64 −0.05 0.07 −0.73 1.37 0.19 7.04 1.64 0.14 11.54 1.43 0.11 12.68
A2P −0.05 0.01 −5.70 −0.17 0.03 −6.02 −0.17 0.02 −7.98 −0.02 0.02 −0.85 −0.14 0.01 −15.40
  High cost
   N1    N2    N3    N4    N5  
2-star 0.04 0.00 19.35 0.03 0.00 13.71 0.02 0.00 9.53 −0.04 0.03 −1.34 0.08 0.01 7.19
3-star 0.00 0.00 −3.84 0.00 0.00 −1.74 0.00 0.00 −1.10 0.00 0.00 2.58 0.00 0.00 −0.77
AS −5.45 1.03 −5.28 −5.05 1.14 −4.44 −3.30 0.55 −5.96 −9.60 8.41 −1.14 −3.68 1.30 −2.83
AT 0.76 0.06 11.74 1.06 0.08 12.72 1.72 0.08 20.66 −0.43 0.06 −6.59 0.33 0.09 3.51
A2P −0.05 0.00 −14.60 −0.06 0.00 −13.60 −0.04 0.00 −7.76 −0.23 0.02 −11.99 −0.07 0.01 −5.40
  Low readmission rate
   N1    N2    N3    N4    N5  
2-star −0.81 1.78 −0.45 0.05 0.03 1.76 0.01 0.06 0.21 0.03 0.02 1.41 0.02 0.09 0.16
3-star 0.08 0.42 0.18 0.00 0.00 1.75 0.01 0.00 1.89 0.00 0.00 1.40 0.01 0.01 1.06
AS 0.15 2.98 0.05 −1.76 0.77 −2.28 −5.05 1.94 −2.60 −3.21 0.89 −3.61 −0.19 0.98 −0.20
AT 1.31 0.33 3.93 0.68 0.12 5.49 0.70 0.14 4.94 1.71 0.19 8.79 −0.02 0.11 −0.20
A2P 0.17 0.36 0.46 −0.11 0.03 −4.05 −0.24 0.02 −13.12 −0.11 0.01 −9.88 −0.16 0.06 −2.76
  High readmission rate
   N1    N2    N3    N4    N5  
2-star 0.02 0.01 0.05 0.06 0.01 −0.03 −0.02 0.01 0.02 0.05 0.03 0.04 0.30 0.26 −0.17
3-star 0.00 0.00 0.07 0.00 0.00 0.05 0.00 0.00 0.08 0.00 0.00 0.04 −0.02 0.02 −0.17
AS −5.23 1.29 0.04 −8.65 1.25 −0.02 −6.65 2.47 0.05 −7.54 2.95 0.01 −26.01 11.73 −0.34
AT 0.48 0.11 −0.02 0.97 0.10 0.01 0.46 0.12 −0.01 0.97 0.15 0.03 −0.07 0.07 −0.34
A2P −0.15 0.01 0.05 −0.11 0.00 0.05 −0.18 0.01 0.09 −0.11 0.02 −0.04 −0.33 0.01 0.09