Table 2.
Least-squares means with contrasts at week 9 and week 16
| PCGT | MBSR | Contrast (PCGT-MBSR) | |||||
|---|---|---|---|---|---|---|---|
| Rating scale | Mean | SE | Mean | SE | Mean | SE | p |
| Week 9 | |||||||
| ΔCAPS-IV | − 12.80 | 1.87 | − 19.10 | 1.99 | 6.29 | 2.72 | 0.021 |
| ΔPCL | − 4.63 | 1.78 | − 8.96 | 1.80 | 4.33 | 1.36 | 0.002 |
| ΔPHQ9 | − 1.08 | 1.04 | − 3.06 | 1.05 | 1.97 | 0.65 | 0.002 |
| ΔFFMQ | 1.55 | 1.31 | 7.51 | 1.36 | − 5.96 | 1.87 | 0.002 |
| Biomarker | |||||||
| ΔCortisol | 2.52 | 0.76 | 0.83 | 0.78 | 1.69 | 0.80 | 0.035 |
| ΔIL-6 | 0.20 | 0.29 | 0.61 | 0.30 | − 0.40 | 0.36 | 0.265 |
| ΔCRP | − 0.13 | 0.19 | − 0.18 | 0.20 | 0.05 | 0.27 | 0.862 |
| Week 16 | |||||||
| ΔCAPS-IV | − 14.10 | 1.93 | − 22.80 | 2.09 | 8.71 | 2.83 | 0.002 |
| ΔPCL | − 4.18 | 1.79 | − 9.69 | 1.83 | 5.51 | 1.41 | 0.000 |
| ΔPHQ9 | − 1.49 | 1.05 | − 3.20 | 1.06 | 1.71 | 0.66 | 0.010 |
| ΔFFMQ | 0.46 | 1.34 | 8.65 | 1.41 | − 8.20 | 1.92 | 0.000 |
| Biomarker | |||||||
| ΔCortisol | 0.84 | 0.78 | − 0.41 | 0.79 | 1.25 | 0.82 | 0.126 |
| ΔIL-6 | 0.28 | 0.30 | − 0.18 | 0.31 | 0.45 | 0.37 | 0.220 |
| ΔCRP | − 0.15 | 0.19 | − 0.05 | 0.22 | − 0.10 | 0.29 | 0.717 |
Bolded values significant for p < 0.05
MBSR mindfulness-based stress reduction, PCGT present-centered group therapy, CAPS-IV Clinician-Administered PTSD Scale for DSM-IV, PCL PTSD Checklist, FFMQ Five Facet Mindfulness Questionnaire, IL-6 interleukin 6, CRP C-reactive protein, SE standard error of the mean, Δ change from baseline