The following table is a summary of segment information for the three and six months ended June 30, 2013 and 2012. Segment asset information is not presented since it is not used by the chief operating decision maker at the operating segment level. Operating earnings (loss) of each segment represents net revenues less directly identifiable expenses to arrive at operating income for the segment. Certain general operating expenses in 2012 have been reclassified to conform to the current year presentation. The accounting policies of the segments are the same as those of the Company as set forth in Note 2 to the Consolidated Financial Statements contained in the Company’s 2012 Annual Report on Form 10-K and Note 2 to the interim consolidated financial statements.



	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Net revenues:
DIS business	$	1,675,139		$	1,738,372		$	3,323,557		$	3,505,543
All other operating segments	140,601			139,980			278,830			281,506
Total net revenues	$	1,815,740		$	1,878,352		$	3,602,387		$	3,787,049

Operating earnings (loss):
DIS business	$	323,297		$	366,359		$	593,145		$	721,517
All other operating segments	16,541			18,028			30,982			30,804
General corporate expenses	(51,117		)	(51,035		)	(108,412		)	(121,150		)
Total operating income	288,721			333,352			515,715			631,171
Non-operating expenses, net	(32,410		)	(35,633		)	(62,738		)	(65,370		)
Income from continuing operations before taxes	256,311			297,719			452,977			565,801
Income tax expense	94,491			113,726			167,828			216,288
Income from continuing operations	161,820			183,993			285,149			349,513
Income from discontinued operations, net of taxes	12,803			2,480			33,091			5,475
Net income	174,623			186,473			318,240			354,988
Less: Net income attributable to noncontrolling interests	9,155			8,768			16,993			18,165
Net income attributable to Quest Diagnostics	$	165,468		$	177,705		$	301,247		$	336,823