TABLE 1.

Multivariate Associations Between Social Network Measures and Hospital Characteristics: Orange County, CA, 2005–2006

Social Network Measure	Covariate	Coefficient (SD; 95% CI)	P (P > t )	Spearman Correlation Coefficient
In-degree	2005 admissions	0.000096 (0.000034; 0.000027, 0.00017)	.008	0.56
In-degree	% cancer	21.98 (9.55; 2.44, 41.51)	.029	0.61
Out-degree	2005 admissions	0.00014 (0.000029; 0.000085, 0.00020)	.001	0.72
Betweenness	2005 admissions	0.0033 (0.0019; –0.00059, 0.0073)	.093	0.61
Betweenness	% cancer	1061.03 (607.72; –181.91, 2303.96)	.091	0.53

Note. CI = confidence interval. Results shown are for the total patient-sharing network at the ≥ 100 patients threshold.