Table 2.
Scores on the Hopkins Symptom Checklist (SCL) depression items and the Patient Health Questionnaire–9 (PHQ-9) for 101 patients who received telephone-based cognitive-behavioral therapy (CBT) or enhanced usual carea
| Measure | CBT (N=50) | Enhanced usual care (N=51) | p | ||
|---|---|---|---|---|---|
|
|
|
||||
| M | SD | M | SD | ||
| SCL | |||||
| Baseline | 1.83 | .12 | 1.75 | .11 | .596 |
| 6 weeks | 1.35 | .12 | 1.48 | .12 | .474 |
| 3 months | 1.00 | .13 | 1.21 | .13 | .259 |
| 6 months | .82 | .12 | 1.14 | .13 | .073 |
| PHQ-9 | |||||
| Baseline | 17.02 | .82 | 17.34 | .81 | .785 |
| 6 weeks | 10.71 | .91 | 12.15 | .90 | .262 |
| 3 months | 8.23 | .94 | 10.08 | .93 | .165 |
| 6 months | 5.81 | .88 | 9.64 | .95 | .003 |
a
Based on a repeated-measures linear mixed-effects model that controlled for presence of comorbid anxiety; possible SCL scores range from 0 to 4, and possible PHQ-9 scores range from 0 to 27, with higher scores indicating more severe depression.