Table 2.

Comparisons between anchor hospitals of health systems with low, moderate, and high levels of physician teamwork (2011 data).

	Low		Moderate		High		P-Value
	Mean	SE	Mean	SE	Mean	SE
Anchor hospital characteristics
No. of CABG patients (mean)	63.65	57.30	42.28	31.00	27.23	22.38	0.00
No. of physicians caring for CABG (mean)	238.77	224.94	151.34	95.10	90.16	58.54	0.00
Proportion of CABG patients from outside the CBSA (mean)	0.55	0.26	0.52	0.23	0.44	0.24	0.00
Mean Charlson score for CABG patients	2.31	0.61	2.39	0.56	2.36	0.65	0.22
Academic status	0.63	0.48	0.53	0.50	0.44	0.50	0.00

Abbreviations: CABG, coronary artery bypass grafting; CBSA, core-based statistical area; SE, standard error