Table 4 Recruitment for the exploratory analgesic dietary intervention for chronic daily headache, May 2010
| Â | N | Percent |
|---|---|---|
Inquiries about study | 183 | Â |
   Potentials to be screened | 59 | 32.2 |
   Screened | 124 | 67.8 |
Eligible, but declined to participate | 5 | 4.0 |
Ineligible at telephone screen | 35 | 28.2 |
Headache characteristics | 15 | 42.9 |
Medical/psychiatric problems | 4 | 11.4 |
Logistic problems (time/distance) | 11 | 31.4 |
Dietary Issues | 2 | 5.7 |
Other/unknown | 3 | 8.6 |
Scheduled for baseline consent | 84 | 68.3 |
Ineligible at baseline consent | 5 | 6.0 |
Eligible at baseline consent | 79 | 94.0 |
Withdrew/ineligible before randomization | 10 | 11.9 |
Withdrew after randomization | 5 | 6.0 |
Awaiting baseline visit | 18 | 14.5 |
Enrolled | 46 | 37.9 |
Referral pattern | Â | Â |
   Health professionals* | 126 | 72.0 |
   Electronic advertisements | 32 | 18.3 |
   Print advertisements | 12 | 6.9 |
   Family/Friends | 2 | 1.1 |
   Prior Study | 3 | 1.7 |
   Unknown | 8 |  |