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STUDY TIMETABLE

DPP Timeline
Phase I
July 1994 - June 1996 Protocol Development and Implementation
July 1994 - December 1995 Protocol Development
January 1996 - June 1996 Protocol Implementation
Phase II
July 1996 - June 2002 Participant Randomization and Follow-up
July 1996 - February 1999 Recruitment and Follow-up - 2 and 2/3 years
March 1999 - June 2002 Participant Follow-up - 3 and 1/3 years
Phase III
July 2002 - June 2003 Study Close-out and Data Analysis