MADISON, N.J., Sept. 12, 2014 /PRNewswire/ -- Quest Diagnostics (NYSE: DGX), the world's leading provider of diagnostic information services, today celebrates a decade on the North America Dow Jones Sustainability Index (DJSI) and 11 consecutive years on the World DJSI.

The Dow Jones Sustainability Index family ranks companies for corporate sustainability according to economic, environmental and social criteria. To be included or remain in the index, companies must continually intensify their sustainability initiatives.

"A sustainable business is a strong business," said Steve Rusckowski, President and Chief Executive Officer of Quest Diagnostics. "We are proud of our continuing inclusion on both the World and North America DJSI, which is a direct outgrowth of the value we place on our people, the communities we serve and the environment. This achievement underscores the seriousness of our commitment to corporate sustainability and recognition of its vital role in our vision to empower better health through diagnostic insights."

Launched in 1999, the DJSI are the first global indices tracking the financial performance of the leading sustainability-driven companies worldwide. The DJSI enable investors to integrate sustainability considerations into their portfolios while providing an effective engagement platform for encouraging companies to adopt sustainable best practices. Companies are named to the DJSI based on the results of the Corporate Sustainability Assessment. This annual questionnaire provides an in-depth analysis of economic, environmental and social criteria, such as corporate governance, water-related risks and stakeholder relations, with a special focus on industry-specific risks and opportunities.

For more information on the sustainability programs of Quest Diagnostics, refer to the company's 2013 Corporate Social Responsibility Report.

About Quest Diagnostics
Quest Diagnostics is the world's leading provider of diagnostic information services that patients and doctors need to make better healthcare decisions. The company offers the broadest access to diagnostic information 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 diagnostic tests and advanced healthcare information technology solutions that help improve patient care.  Additional information is available at QuestDiagnostics.com.  Follow us at Facebook.com/QuestDiagnostics and Twitter.com/QuestDX.

Quest, Quest Diagnostics, the associated logo, and all associated Quest Diagnostics marks are the registered trademarks of Quest Diagnostics. All third party marks — ®' and ™' — are the property of their respective owners.

Contacts:
Wendy Bost, Quest Diagnostics (Media): 973-520-2800
Dan Haemmerle, Quest Diagnostics (Investors): 973-520-2900

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SOURCE Quest Diagnostics