MADISON, N.J., Sept. 4 /PRNewswire-FirstCall/ -- Quest Diagnostics Incorporated (NYSE: DGX), the world's leading provider of diagnostic testing, information and services, today announced that it was again selected to be part of the Dow Jones Sustainability World Indexes and North America Indexes (DJSI World and DJSI North America). The company is in its sixth year on the World Index (since 2004) and in its fifth on the North American Index (since 2005).

According to Sustainable Asset Management (SAM), an investment boutique based in Zurich, Switzerland, which publishes the indexes together with Dow Jones Indexes and STOXX, its selection process follows "a best-in-class approach and includes sustainability leaders from each industry on a global and regional level respectively. The annual review of the DJSI family is based on a thorough analysis of corporate economic, environmental and social performance, assessing issues such as corporate governance, risk management, branding, climate change mitigation, supply chain standards and labor practices. It accounts for general as well as industry specific sustainability criteria for each of 58 sectors defined according to the Industry Classification Benchmark."

The Dow Jones Sustainability Indexes (DJSI) track the financial performance of the leading sustainability-driven companies worldwide, providing asset managers with reliable and objective benchmarks. The DJSI World Index contains approximately 300 companies, and the DJSI North America Index contains approximately 100 companies selected from among the largest 600 North American corporations of the Dow Jones Global Total Stock Market Index. DJSI indexes are produced by Sustainable Asset Management Group (SAM), based in Zurich, Switzerland, together with Dow Jones Indexes and STOXX Limited. Additional information about the DJSI, including a list of all component companies, is available at: www.sustainability-indexes.com.

To view Quest Diagnostics' Corporate Social Responsibility Report, visit http://www.questdiagnostics.com/brand/company/questcares/corporate_responsibility.html.

About Quest Diagnostics

Quest Diagnostics is the world's leading provider of diagnostic testing, information and services that patients and doctors need to make better healthcare decisions. The company offers the broadest access to diagnostic testing services through its network of laboratories and patient service centers, and provides interpretive consultation through its extensive medical and scientific staff. Quest Diagnostics is a pioneer in developing innovative new diagnostic tests and advanced healthcare information technology solutions that help improve patient care. Additional company information is available at: www.questdiagnostics.com.

    Contacts:
    Kathleen Valentine (Investors): 973-520-2900
    Barb Short (Media): 973-520-2800

SOURCE Quest Diagnostics Incorporated

SOURCE: Quest Diagnostics Incorporated

Web site: http://www.questdiagnostics.com/