Table 3.
Knowledge, Attitudes, and Preparation Scores (Control v PRE-ACT)
| Control | PRE-ACT | Comparison of PRE-ACT and Control | ||||||
|---|---|---|---|---|---|---|---|---|
| Measure | No. | Mean (SD) | 95% CI | No. | Mean (SD) | 95% CI | Difference in Mean Change (95% CI) | P |
| Knowledge | ||||||||
| Pre | 573 | 11.77 (3.77) | 504 | 11.93 (3.68) | ||||
| Post | 573 | 14.28 (3.78) | 504 | 15.09 (3.05) | ||||
| Change | 573 | 2.51 (3.05) | 2.26 to 2.76* | 504 | 3.16 (3.10) | 2.89 to 3.43* | 0.65 (0.28 to 1.01) | < .001 |
| Attitudinal barriers | ||||||||
| Pre | 570 | 2.54 (0.64) | 502 | 2.50 (0.67) | ||||
| Post | 570 | 2.39 (0.67) | 502 | 2.23 (0.66) | ||||
| Change | 570 | −0.16 (0.38) | −0.19 to −0.12* | 502 | −0.27 (0.45) | −0.31 to −0.23* | −0.12 (−0.17 to −0.07) | < .001 |
| Preparation | ||||||||
| Pre | 578 | 73.1 (15.2) | 505 | 73.4 (15.7) | ||||
| Post | 578 | 76.5 (15.5) | 505 | 78.1 (14.1) | ||||
| Change | 578 | 3.4 (13.5) | 2.3 to 4.5* | 505 | 4.7 (12.8) | 3.6 to 5.8* | 1.4 (−0.2 to 2.9) | .09 |
Abbreviations: PRE-ACT, Preparatory Education About Clinical Trials; SD, standard deviation.
*
Within-group mean change significantly different from zero, P < .001.