Table 1.
Baseline characteristics and engagement of completers and non-completers of the treatment measures.
| Completers (N = 394) |
Non-completers (N = 209) |
P | |
|---|---|---|---|
| Baseline characteristics | |||
| Age, mean (SD) | 43.0 (14.4) | 42.5 (13.8) | 0.74 |
| Male, n (%) | 90 (22.8) | 33 (15.8) | 0.04 |
| White, n (%) | 323 (82.0) | 176 (84.2) | 0.49 |
| Education | |||
| ≥ High school, n (%) | 380 (96.5) | 202 (96.7) | 0.90 |
| ≥ 4 yr. college degree, n (%) | 189 (48.0) | 92 (44.0) | 0.35 |
| PHQ-9, mean (SD) | 12.9 (4.9) | 14.0 (5.0) | 0.01 |
| GAD-7, mean (SD) | 12.9 (4.2) | 12.7 (4.7) | 0.60 |
| Dx on PRIME-MD | |||
| Anxiety only, n (%) | 33 (8.4) | 12 (5.7) | 0.24 |
| Depression only, n (%) | 71 (18.0) | 39 (18.7) | 0.85 |
| Depression and anxiety, n (%) | 272 (69.0) | 154 (73.7) | 0.23 |
| Treatment in past 1 year, n (%) | 269 (68.3) | 161 (77.0) | 0.02 |
| Pharmacotherapy use, n (%) | 304 (77.2) | 168 (80.4) | 0.36 |
| Withdrawn, n (%) | 2 (0.5) | 61 (29.2) | < 0.001 |
| Treatment engagement | |||
| CCBT program | |||
| Logged in, n (%) | 363 (92.1) | 158 (75.6) | < 0.001 |
| Completed ≥ 1 session, n (%) | 356 (90.4) | 148 (70.1) | < 0.001 |
| Completed all 8 sessions, n (%) | 192 (48.7) | 29 (13.9) | < 0.001 |
| Care management | |||
| Total contacts, median [IQR] | 15 [13,19] | 12 [9,16] | < 0.001a |
| Email contacts, median [IQR] | 11 [8,14] | 9 [5,12] | < 0.001a |
| Telephone contacts, median [IQR] | 4 [3,6] | 3 [2,5] | < 0.001a |
| Contacts pertaining to CCBT program, median [IQR] | 7 [4,8] | 2 [3,6] | < 0.001a |
Abbreviations: CCBT, computerized cognitive behavioural therapy; GAD-7, 7-item Generalized Anxiety Disorder Scale; IQR, interquartile range; PRIME-MD, Primary Care Evaluation of Mental Disorders; PHQ-9, 9-item Patient Health Questionnaire.
a
Note: p-values for Contacts were obtained using Wilcoxon rank-sum tests.