(BURLINGTON) -- LabCorp reported fourth quarter net earnings of $135.4 million. This compared with $131.8 million during the same period of the prior year. The Burlington-based laboratory diagnostics company also reported fourth revenue of $1,366.1 million, an increase of 5.5 percent over the fourth quarter of 2010.

The company's net earnings for 2011 were $519.7 million. That is down from $558.2 million in 2010.

"“We had a great year and achieved meaningful progress on each pillar of our 5-pillar strategy during 2011,” said David P. King, Chairman and Chief Executive Officer. “We also made great progress on the integration of the Westcliff, Orchid Cellmark and Genzyme Genetics acquisitions. We will continue our progress on all of these components of our growth in 2012.”