Table 1 Worksite recruitment process chart
N | Percent at Screening Stage | Percent of Total | Status |
|---|---|---|---|
200 | 100% | 100% | Telephone calls placed to screen for eligibility and obtain name of contact person to receive initial letter |
163 | Â | 81.5% | No letter sent after screening call |
84 | 51.5% | 42% | Ineligible at screening |
56 | 34.4% | 28% | No response to screening call |
15 | 9.2% | 7.5% | Declined due to lack of interest |
8 | 4.9% | 4% | Site contact outcome not recorded |
37 | Â | 18.5% | Letter sent after screening call |
25 | 67.6% | 12.5% | Investigator-initiated calls to discuss project |
10 | 27% | 5% | Did not respond to investigator call |
2 | 5.4% | 1% | Not pursued for study due to company factors (type of company or known merger issues) |
25 | Â | 12.5% | Investigator-initiated call to discuss project details |
15 | 60% | 7.5% | Scheduled an in-person or telephone visit |
5 | 20% | 2.5% | Declined due to lack of time or interest |
3 | 12% | 1.5% | Did not follow up to schedule or declined to participate |
2 | 8% | 1% | Not pursued further due to type of company |
15 | Â | 7.5% | Site visits (in-person or by telephone) |
11 | 73.3% | 5.5% | Site visit completed |
3 | 20% | 1.5% | Site visit postponed; not rescheduled due to completion of recruitment |
1 | 6.7% | 0.5% | Site visit no-show (scheduled telephone call); not rescheduled due to completion of recruitment |
11 | Â | 5.5% | Recruitment following site visits |
6 | 54.5% | 3% | Successfully recruited |
3 | 27.3% | 1.5% | Declined participation after site visit |
2 | 18.2% | 1% | No follow-up response to investigator contacts after site visit |