Table 1.
Depression care by study group at baseline, 12 months, 18 months, and 24 months (6 and 12 months after the end of the intervention). Values are numbers (percentages) of patients unless otherwise indicated
| Depression care | Usual care (n=895*) | Intervention (n=906*) | Difference in percentage points between groups (95% CI) | P value |
|---|---|---|---|---|
| Any antidepressant medication | ||||
| Baseline | 379 (42.49†) | 391 (43.20) | 0.72 (−3.86 to 5.29) | 0.7592 |
| 12 month follow-up | 347 (47.6) | 506 (66.06) | 18.46 (13.52 to 23.40) | <0.0001 |
| 18 month follow-up | 310 (45.12) | 434 (59.86) | 14.74 (9.58 to 19.89) | <0.0001 |
| 24 month follow-up | 279 (41.15) | 386 (55.06) | 13.91 (8.69 to 19.14) | <0.0001 |
|
Any specialty mental health visits or psychotherapy
|
|
|
|
|
| Baseline | 68 (7.63) | 82 (9.07) | 1.44 (−1.12 to 4.00) | 0.2707 |
| 12 month follow-up | 112 (15.41) | 333 (43.59) | 28.18 (23.79 to 32.57) | <0.0001 |
| 18 month follow-up | 100 (14.39) | 105 (14.46) | 0.07 (−3.58 to 3.73) | 0.9682 |
| 24 month follow-up | 91 (13.34) | 99 (14.06) | 0.72 (−2.90 to 4.34) | 0.6971 |
|
Any depression treatment (antidepressant medication or psychotherapy)
|
|
|||
| Baseline | 405 (45.40) | 422 (46.63) | 1.23 (−3.38 to 5.83) | 0.602 |
| 12 month follow-up | 383 (52.61) | 599 (78.30) | 25.69 (21.03 to 30.35) | <0.0001 |
| 18 month follow-up | 335 (48.62) | 462 (63.81) | 15.19 (10.07 to 20.31) | <0.0001 |
| 24 month follow-up | 309 (45.51) | 415 (59.29 | 13.78 (8.55 to 19.00) | <0.0001 |
*
Total numbers of patients randomised to each study group at enrolment. Numbers of respondents at each follow-up varied and were less that 895 for the group receiving usual care and less than 906 for the intervention group because of missing data. Numbers of respondents for any one item ranged from a total (usual care and intervention patients combined) 1379 to 1797 because of missing data.
†
Percentage of patients who answered the item at baseline.