Table 5.
Depression symptom trajectories and time-varying effects of engagement with elements of blended care therapya.
|
|
Model 1 | Model 2 | Model 3 | ||||
|
|
b (95% CI) | P value | b (95% CI) | P value | b (95% CI) | P value | |
| Intercept | 12.90 (12.84 to 12.96) | <.001 | 13.39 (13.33 to 13.46) | <.001 | 13.59 (13.53 to 13.66) | <.001 | |
| Weeks | –1.45 (–1.46 to –1.43) | <.001 | –1.36 (–1.38 to –1.34) | <.001 | –1.23 (–1.25 to –1.21) | <.001 | |
| Weeks² | 0.07 (0.07 to 0.07) | <.001 | 0.06 (0.06 to 0.06) | <.001 | 0.05 (0.05 to 0.05) | <.001 | |
| Therapy sessions last 7 days | N/Ab | N/A | –0.76 (–0.80 to –0.72) | <.001 | –0.89 (–0.93 to –0.85) | <.001 | |
| Digital lessons last 7 days | N/A | N/A | –0.14 (–0.19 to –0.10) | <.001 | –0.12 (–0.16 to –0.08) | <.001 | |
| Digital exercises last 7 days | N/A | N/A | –0.31 (–0.36 to –0.26) | <.001 | –0.16 (–0.21 to –0.11) | <.001 | |
| Provider feedback last 7 days | N/A | N/A | –0.25 (–0.30 to –0.19) | <.001 | –0.15 (–0.21 to –0.10) | <.001 | |
| Therapy sessions 8-14 days | N/A | N/A | N/A | N/A | –0.67 (–0.71 to –0.62) | <.001 | |
| Digital lessons 8-14 days | N/A | N/A | N/A | N/A | –0.30 (–0.34 to –0.25) | <.001 | |
| Digital exercises 8-14 days | N/A | N/A | N/A | N/A | –0.05 (–0.10 to 0.01) | .09 | |
| Provider feedback 8-14 days | N/A | N/A | N/A | N/A | –0.08 (–0.14 to –0.02) | .01 | |
| Deviance (–2LLc) | 808,568.9 | N/A | 805,755.1 | N/A | 804,048.6 | N/A | |
| AICd | 808,590.9 | N/A | 805,785.1 | N/A | 804,086.6 | N/A | |
| BICe | 808,699.6 | N/A | 805,933.3 | N/A | 804,274.3 | N/A | |
aThe outcome of interest was client scores on the Patient Health Questionnaire 9-item scale (PHQ-9). The analyzed sample included 22,070 individuals with a baseline PHQ-9 score of ≥10. dfresidual=144,505 for model 1, dfresidual=144,501 for model 2, and dfresidual=144,497 for model 3.
bNot applicable.
c–2LL: –2 × log likelihood.
dAIC: Akaike information criterion.
eBIC: Bayesian information criterion.