Table 2.
Milestone Completion Rates by Recruitment Method
| Variable | Recruitment Method | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| All | Patient portal | ||||||||
|
| |||||||||
| n | % | n | % | n | % | OR | 95% CI | p | |
|
| |||||||||
| Self-screener | 1207 | 6.7 | 369 | 4.1 | 838 | 9.1 | 2.40 | 2.12, 2.73 | <.0001 |
| Phone-screener | 360 | 2.0 | 134 | 1.5 | 226 | 2.5 | 1.70 | 1.37, 212 | <.0001 |
| Consent | 187 | 1.0 | 70 | 0.8 | 117 | 1.3 | 1.68 | 1.25, 2.26 | .0006 |
| Run-in | 165 | 0.9 | 60 | 0.7 | 105 | 1.2 | 1.76 | 1.28, 2.42 | .0005 |
| Baseline | 107 | 0.6 | 39 | 0.4 | 68 | 0.8 | 1.75 | 1.18, 2.60 | .0055 |
| Randomization | 85 | 0.5 | 35 | 0.4 | 50 | 0.5 | 1.43 | 0.93, 2.21 | .10 |
Note. OR = Odds ratio; Compares likelihood of those who were outreached via patient portal to those outreached via email (reference group) for each recruitment milestone. CI = Confidence interval.