Business Acquisitions (Tables)

6 Months Ended

Jun. 30, 2013

Schedule of Pro Forma Information Combines Consolidated Results of Company and Business Acquisitions

The following unaudited pro forma information combines the consolidated results of operations of the Company on a GAAP basis and the acquisitions completed during 2013 and 2012, including adjustments for pro forma amortization and interest expense, as if the transactions had occurred on January 1, 2012 and January 1, 2011, respectively (in thousands, except for per share data):


	Six Months Ended June 30,
	2013			2012

Net patient service revenue	$	1,065,003		$	1,043,113
Net income ⁽¹⁾	$	127,820		$	125,529
Net income per share ⁽²⁾:
Basic	$	2.58		$	2.58
Diluted	$	2.53		$	2.54
Weighted average shares ⁽²⁾:
Basic		49,434			48,408
Diluted		50,471			49,474

Effective tax rate ⁽¹⁾:		38.6	%		39.0	%

⁽¹⁾	The comparison of net income is affected by the change in the effective tax rate. The effective tax rate was 38.6% for the six months ended June 30, 2013 as compared to 39.0% for the six months ended June 30, 2012.

⁽²⁾

The comparison of net income per share is affected by the changes in the number of weighted average shares outstanding in each period. The basic and diluted weighted average shares outstanding for the six months ended June 30, 2013 were 49.4 million and 50.5 million, respectively, as compared to 48.4 million and 49.5 million, respectively, for the six months ended June 30, 2012.