Table 4 Results of the pairwise computed Spearman correlation coefficients

(1)

Number of physicians

(2)

Number of patients

0.837

(< 0.001)

(3)

Number of different specializations

0.822

(< 0.001)

0.725

(< 0.001)

(4)

Number of practices

0.955

(< 0.001)

0.850

(< 0.001)

0.822

(< 0.001)

(5)

Average number of physicians per practice

–0.028

(0.524)

–0.135

(0.002)

–0.135

(< 0.001)

–0.293

(< 0.001)

(6)

Proportion of different physicians consulted within the network to all physicians

0.593

(< 0.001)

0.788

(< 0.001)

0.629

(< 0.001)

0.563

(< 0.001)

0.051

(0.252)

(7)

Proportion of physician consultations within the network to all physician consultations

0.552

(< 0.001)

0.811

(< 0.001)

0.598

(< 0.001)

0.557

(< 0.001)

–0.057

(0.196)

0.953

(< 0.001)

(8)

Network degree centrality

0.559

(< 0.001)

0.727

(< 0.001)

0.631

(< 0.001)

0.533

(< 0.001)

0.020

(0.656)

0.914

(< 0.001)

0.869

(< 0.001)

(9)

Network density

-0.379

(< 0.001)

-0.064

(0.148)

-0.148

(< 0.001)

-0.357

(< 0.001)

0.011

(0.807)

0.367

(< 0.001)

0.358

(< 0.001)

0.500

(< 0.001)

(10)

Clustering coefficient

-0.299

(< 0.001)

-0.074

(0.096)

-0.147

(< 0.001)

-0.335

(< 0.001)

0.157

(< 0.001)

0.344

(< 0.001)

0.296

(< 0.001)

0.437

(< 0.001)

0.827

(< 0.001)