Table 2. Fidelity Assessment of Internet Component.
| Website Use | Mean (SD) | Difference CATCH-IT and Health Education, Mean (95% CI) | Median (IQR) | P Valuea | ||
|---|---|---|---|---|---|---|
| CATCH-IT | Health Education | CATCH-IT | Health Education | |||
| Adolescents | ||||||
| No. | 193 | 176 | ||||
| Modules completed, No. | 3.4 (4.7) | 6.8 (6.5) | −3.4 (−4.5 to −2.2) | 1.0 (4.0) | 4.0 (14.0) | .003 |
| Total time on site, min | 100.2 (143.1) | 22.8 (31.0) | 77.4 (55.7 to 99.0) | 39.6 (149.2) | 8.4 (35.1) | <.001 |
| Days visited site | 3.7 (4.5) | 1.4 (1.6) | 2.3 (1.6 to 3.0) | 2.0 (4.0) | 1.0 (2.0) | <.001 |
| Total characters typed, No. | 3071 (4572) | NA | NA | 923 (4469) | NA | NA |
| Adolescents and parents | ||||||
| Modules completed, No. | 5.3 (5.8) | 8.8 (7.3) | −3.5 (−4.8 to −2.1) | 4.0 (8.0) | 8.0 (17.0) | <.001 |
| Total time on site, min | 130.6 (157.9) | 30.6 (35.6) | 100.0 (76.1 to 124.0) | 75.8 (192.2) | 18.9 (40.8) | <.001 |
| Days visited site | 5.2 (5.2) | 2.2 (2.2) | 2.9 (2.1 to 3.8) | 4.0 (6.0) | 2.0 (2.0) | <.001 |
| Total characters typed, No. | 3713 (4932) | NA | NA | 1899 (5792) | NA | NA |
| Parents | ||||||
| No. | 165 | 157 | ||||
| Modules completed, No. | 2.1 (2.0) | 2.2 (1.9) | −0.1 (−0.6 to 0.3) | 2.0 (4.0) | 4.0 (4.0) | .80 |
| Total time on site, min | 32.6 (37.3) | 8.6 (10.0) | 24.0 (17.9 to 30.0) | 22.4 (51.9) | 5.6 (14.9) | <.001 |
| Days visited site | 1.6 (1.6) | 0.9 (1.1) | 0.6 (0.3 to 0.9) | 1.0 (2.0) | 1.0 (1.0) | <.001 |
| Total characters typed, No. | 716 (977) | NA | NA | 101 (1205) | NA | NA |
Abbrevations: CATCH-IT, Competent Adulthood Transition with Cognitive Behavioral Humanistic and Interpersonal Training; IQR, interquartile range; NA, not available.
a
Medians compared using Wilcoxon rank-sum test.