Table 4. Clinical outcome measures: Observed mean and standard deviation, estimated effect sizes (Cohen’s d based on observed values, estimated effects derived from the linear mixed model.
| Measure | Observed values | Estimated effects | |||||
|---|---|---|---|---|---|---|---|
| M | SD | Within group effect size d (95% CI) | B | z value | P value | ||
| PSWQ-C | |||||||
| Pre-baseline | 35.15 | 3.08 | |||||
| Pre-treatment | 33.69 | 3.95 | 0.41 (–0.37, –1.18) | ||||
| Post-treatment | 25.00 | 8.06 | 1.38 (0.50, 2.26) | –8.64 | –5.06 | <0.001 | |
| 1-month | 23.83 | 6.73 | 1.80 (0.85, 2.73) | –9.81 | –4.94 | <0.001 | |
| 3-month | 24.00 | 8.24 | 1.52 (0.61, 2.41) | –9.64 | –3.64 | <0.001 | |
| PSWQ-P | |||||||
| Pre-baseline | 31.85 | 3.85 | |||||
| Pre-treatment | 31.85 | 5.46 | 0.00 (–0.77, 0.77) | ||||
| Post-treatment | 23.33 | 4.05 | 1.76 (0.81, 2.68) | –8.37 | –5.01 | <0.001 | |
| 1-month | 22.08 | 4.23 | 1.99 (1.00, 2.94) | –9.62 | –4.88 | <0.001 | |
| 3-month | 22.83 | 9.13 | 1.21 (0.34, 2.06) | –8.87 | –3.31 | 0.001 | |
| RCADS-Anxiety-C | |||||||
| Pre-baseline | 36.70 | 10.19 | |||||
| Pre-treatment | 39.15 | 11.22 | –0.16 (–0.93, 0.61) | ||||
| Post-treatment | 26.08 | 14.72 | 0.74 (–0.08, 1.55) | –11.45 | –4.44 | <0.001 | |
| 1-month | 26.17 | 15.50 | 0.66 (–0.15, 1.46) | –11.37 | –4.00 | <0.001 | |
| 3-month | 23.92 | 13.57 | 0.91 (0.07, 1.72) | –13.62 | –3.87 | <0.001 | |
| RCADS-Anxiety-P | |||||||
| Pre-baseline | 29.31 | 7.17 | |||||
| Pre-treatment | 32.23 | 7.12 | –0.12 (–0.89, 0.65) | ||||
| Post-treatment | 22.27 | 8.34 | 1.02 (0.18, 1.85) | –9.49 | –5.02 | <0.001 | |
| 1-month | 19.00 | 10.85 | 0.86 (0.03, 1.67) | –12.66 | –6.10 | <0.001 | |
| 3-month | 17.10 | 9.74 | 1.07 (0.21, 1.90) | –14.57 | –5.72 | <0.001 | |
| RCADS-Dep-C | |||||||
| Pre-baseline | 13.38 | 5.73 | |||||
| Pre-treatment | 14.38 | 6.53 | –0.16 (–0.93, 0.61) | ||||
| Post-treatment | 9.75 | 5.88 | 0.74 (–0.80, 1.55) | –3.82 | –3.13 | 0.002 | |
| 1-month | 10.50 | 5.04 | 0.66 (–0.15, 1.46) | –3.07 | –2.35 | 0.019 | |
| 3-month | 9.00 | 5.24 | 0.91 (0.07, 1.72) | –4.57 | –2.98 | 0.003 | |
| RCADS-Dep-P | |||||||
| Pre-baseline | 10.62 | 2.82 | |||||
| Pre-treatment | 11.00 | 3.49 | –0.12 (–0.89, 0.65) | ||||
| Post-treatment | 7.83 | 2.59 | 1.02 (0.18, 1.85) | –2.89 | –3.45 | 0.001 | |
| 1-month | 7.67 | 4.25 | 0.86 (0.03, 1.68) | –3.06 | –3.32 | 0.001 | |
| 3-month | 7.00 | 4.02 | 1.07 (0.21, 1.90) | –3.72 | –3.28 | 0.001 | |
| WSAS-Y-C | |||||||
| Pre-baseline | 15.69 | 7.65 | |||||
| Pre-treatment | 16.85 | 8.86 | –0.40 (–0.91, 0.63) | ||||
| Post-treatment | 11.17 | 7.35 | 0.69 (–0.13, 1.49) | –4.81 | –3.22 | 0.001 | |
| 3-month | 10.75 | 9.69 | 0.66 (–0.16, 1.46) | –5.23 | –2.28 | 0.023 | |
| WSAS-Y-P | |||||||
| Pre-baseline | 13.00 | 4.55 | |||||
| Pre-treatment | 13.38 | 7.32 | –0.06 (–0.83, 0.71) | ||||
| Post-treatment | 10.25 | 4.14 | 0.49 (–0.31, 1.28) | –1.75 | –1.48 | 0.138 | |
| 3-month | 7.33 | 6.70 | 0.84 (0.01, 1.66) | –4.67 | –2.44 | 0.015 | |
| CGAS | |||||||
| Pre-baseline | 57.62 | 2.75 | |||||
| Post-treatment | 62.92 | 2.61 | 1.97 (0.99, 2.92) | 5.25 | 4.89 | <0.001 | |
| 1-month | 65.33 | 5.18 | 1.88 (0.92, 2.82) | 7.67 | 6.21 | <0.001 | |
| 3-month | 65.58 | 5.25 | 1.93 (0.95, 2.87) | 7.92 | 4.87 | <0.001 | |
Data from pre-baseline is used in the linear mixed models and d calculations for the CGAS. Higher scores on the CGAS indicate higher functioning. PSWQ-C, Penn State Worry Questionnaire for Children; C/P, Child and Parent rated; RCADS-Anxiety-C/P, Revised Children’s Anxiety Scale Child and Parent rated, anxiety subscales; RCADS-Dep-C/P, Revised Children’s Anxiety and Depression Scale Child and Parent rated, depression subscales; WSAS-Y-C/P, Work and Social Adjustment Scale—Youth version, Child and Parent rated; CGAS, Clinician Global Assessment Scale.