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Diabetes Prevention Program Outcomes Study (DPPOS)

The Diabetes Prevention Program Outcomes Study (DPPOS) began as the Diabetes Prevention Program (DPP) in 1994.  The study assessed patients at high risk of developing diabetes to determine if lifestyle modifications of improved diet and exercise along with on oral anti-diabetes medication would prevent the development of diabetes. 

After meeting its objectives, DPPOS was established to assess the long-term effects of these interventions.  One of the measures used in the study is the Quality of Well-Being Scale (QWB-SA).  HSRC  provides data processing services to DPPOS for QWB-SA assessments, including quarterly data reports and detailed data quality monitoring.

For more information, visit or contact Helen Chong at