Table 3. Characteristics of SELECT sites with participants included in the retention analysis.
| N | % | |
|---|---|---|
| NUMBER OF SITES | 417 | 100% |
| SITE CHARACTERISTICS | ||
| Type of site | ||
| Veterans Affairs | 45 | 11% |
| Community Clinical Oncology Programs | 126 | 30% |
| Other | 246 | 59% |
| Total accrual | ||
| <100 | 334 | 80% |
| 100 - 499 | 72 | 17% |
| ≥500 | 11 | 3% |
| Percent African American accrual at site | ||
| <5% | 197 | 47% |
| 5-19% | 124 | 30% |
| ≥20% | 96 | 23% |
| Site participated in ancillary studiesa | ||
| Yes | 362 | 87% |
| No | 55 | 13% |
| Number of training workshops missed by site staff b | ||
| 0, 1, or 2 | 117 | 28% |
| 3 or 4 | 77 | 18% |
| 5 or more | 223 | 53% |
| Site ever received a SELECT R&A Grantc | ||
| Yes | 127 | 30% |
| No | 290 | 70% |
a
Site registered at least one participant to a SELECT ancillary study
b
Staff were required to attend SELECT training workshops, held every 6 months
c
SELECT Retention and Adherence (R&A) grants were available to all sites via an application process, for study-related activities