Table 3.

Characteristics of SELECT sites with participants included in the retention analysis

Number of sites417100%
Site characteristics
 Type of site
 Total accrual
 Percent African American accrual at site
 Site participated in ancillary studiesa
 Number of training workshops missed by site staffb
  0, 1, or 211728%
  3 or 47718%
  5 or more22353%
 Site ever received a SELECT R&A grantc
  • aSite registered at least one participant to a SELECT ancillary study.

  • bStaff were required to attend SELECT training workshops, held every 6 months.

  • cSELECT R&A grants were available to all sites via an application process, for study-related activities.