PARTICIPATION RATES
GuLF STUDY Participation Rates
07/30/18
| Completed | ||||||
|---|---|---|---|---|---|---|
| Eligible | Contacted | Responded | Response Rate1 |
Participation Rate2 |
||
| Study Event | N | N | % | N | % | % |
| Enrollment Telephone Questionnaire | 58,923 | 36,351 | 61.7 | 32,608 | 89.7 | 55.3 |
| Home Visit | 25,304 | 13,355 | 52.8 | 11,193 | 83.8 | 44.2 |
| Follow-up Interview I | 31,365 | 23,691 | 75.5 | 21,256 | 89.7 | 67.8 |
| Mental Health Interview (SAMSHA) - Baseline | 4,370 | 4,187 | 95.8 | 2,859 | 68.3 | 65.4 |
| Follow-up 6 Month | 2,859 | 1,875 | 65.6 | 1,822 | 97.2 | 63.7 |
| Follow-up 12 Month | 2,859 | 1,908 | 66.7 | 1,741 | 91.2 | 60.9 |
| Follow-up 24 Month | 2,859 | 1,747 | 61.1 | 1,506 | 86.2 | 52.7 |
| Clinical Exam | 5,510 | 4,647 | 84.3 | 3,401 | 73.2 | 61.7 |
1Response rate is calculated as the number responded divided by the number contacted.
2Participation rate is calculated as the number responded divided by the number eligible.