Table 3.
Reliable recovery, reliable improvement, no change, and deterioration on the PHQ-9 and GAD-7 at post-treatment and 24-week follow-up using imputed data.
| All groups (%) | NHWRQ (%) | HWRQ | Significance | 1W (%) | 2W (%) | Significance | |
|---|---|---|---|---|---|---|---|
| Post-treatment | |||||||
| PHQ-9 | |||||||
| In clinical range at assessment | 64.6 | 61.6 | 67.4 | χ2(1, N=593) = 1.93; p = .16 | 62.7 | 66.4 | χ2(1, N=593) = 0.77; p = .38 |
| Reliable recovery | 32.8 | 30.0 | 35.5 | F(1, 689) = 1.56; p = .21 | 31.7 | 33.9 | F(1, 1117) = 0.38; p = .54 |
| Reliable improvement | 43.0 | 41.6 | 44.5 | F(1, 1232) = 0.55; p = .46 | 43.1 | 43.0 | F(1, 1046) = 0.29; p = .59 |
| No change | 53.4 | 53.2 | 53.7 | F(1, 3397) = 0.13; p = .72 | 52.2 | 54.6 | F(1, 709) = 0.37; p = .55 |
| Reliable deterioration | 3.5 | 5.3 | 1.9 | F(1, 125) = 2.63; p = .11 | 4.7 | 2.4 | F(1, 141) = 1.30; p = .26 |
| GAD-7 | |||||||
| In clinical range at assessment | 62.7 | 62.7 | 62.8 | χ2(1, N=593) = 0; p = 1 | 64.4 | 61.1 | χ2(1, N=593) = 0.54; p = .46 |
| Reliable recovery | 42.0 | 41.4 | 42.6 | F(1, 2190) = 0.34; p = .56 | 42.3 | 41.6 | F(1, 3218) = 0.21; p = .64 |
| Reliable improvement | 65.7 | 67.0 | 64.5 | F(1, 275) = 0.43; p = .51 | 63.9 | 67.5 | F(1, 311) = 0.73; p = .39 |
| No change | 29.8 | 28.7 | 30.8 | F(1, 1168) = 0.33; p = .57 | 30.3 | 29.2 | F(1, 1470) = 0.24; p = .62 |
| Reliable deterioration | 4.5 | 4.2 | 4.7 | F(1, 169) = 0.85; p = .36 | 5.8 | 3.3 | F(1, 158) = 1.49; p = .22 |
| 24-week follow-up | |||||||
| PHQ-9 | |||||||
| In clinical range at assessment | 64.6 | 61.6 | 67.4 | χ2(1, N=593) = 1.93; p = .16 | 62.7 | 66.4 | χ2(1, N=593) = 0.77; p = .38 |
| Reliable recovery | 38.8 | 38.2 | 39.3 | F(1, 3404) = 0.22; p = .64 | 40.0 | 37.5 | F(1, 951) = 0.45; p = .50 |
| Reliable improvement | 48.2 | 47.9 | 48.5 | F(1, 1394) = 0.25; p = .62 | 51.2 | 45.3 | F(1, 382) = 1.42; p = .23 |
| No change | 49.9 | 51.1 | 48.8 | F(1, 725) = 0.32; p = .57 | 47.0 | 52.7 | F(1, 581) = 1.44; p = .23 |
| Reliable deterioration | 1.9 | 1.0 | 2.7 | F(1, 205) = 1.49; p = .22 | 1.8 | 2.0 | F(1, 681) = 0.46; p = .50 |
| GAD-7 | |||||||
| In clinical range at assessment | 62.7 | 62.7 | 62.8 | χ2(1, N=593) = 0; p = 1 | 64.4 | 61.1 | χ2(1, N=593) = 0.54; p = .46 |
| Reliable recovery | 44.8 | 44.7 | 44.9 | F(1, 6464) = 0.15; p = .69 | 49.8 | 40.0 | F(1, 373) = 3.97; p = .05 |
| Reliable improvement | 68.1 | 70.1 | 66.3 | F(1, 521) = 0.86; p = .35 | 70.4 | 65.9 | F(1, 320) = 0.96; p = .33 |
| No change | 27.9 | 26.5 | 29.3 | F(1, 899) = 0.53; p = .47 | 26.6 | 29.2 | F(1, 769) = 0.47; p = .49 |
| Reliable deterioration | 3.9 | 3.4 | 4.5 | F(1, 298) = 0.44; p = .51 | 2.9 | 4.9 | F(1, 217) = 1.00; p = .32 |
Note. 1W = once-weekly; 2W = twice-weekly; NHWRQ = no homework reflection questionnaires; HWRQ = homework reflection questionnaires; PHQ-9 = Patient Health Questionnaire-9; GAD-7 = Generalized Anxiety Disorder-7.