|  | All | Randomised Group | Between-group difference (Li-CBT – PCC) | |
---|---|---|---|---|---|
PCC | Li-CBT | ||||
Baseline | |||||
 | Mean (SD) | 14.7 (4.8) | 16.1 (4.1) | 13.2 (5.1) |  |
3Â months | |||||
 | Mean (SD) | 9.5 (6.5) | 12.2 (8.0) | 7.7 (4.8) |  |
  Change from baseline | Estimate (95 % CI) | −4.7 (−7.4, −2.0) | −3.2 (−8.8, 2.3) | −5.7 (−8.8, −2.5) | 2.4 (−3.6, 8.4) |
  Hedges' g | Estimate (95 % CI) | 0.94 (0.35, 1.54) | 0.67 (−0.26, 1.59) | 1.09 (0.23, 1.95) | 0.41 (−0.61, 1.43) |
 | p-value | p = 0.001 | p = 0.211 | p = 0.002 | p = 0.398 |
6Â months | Â | Â | Â | Â | Â |
 | Mean (SD) | 7.7 (5.1) | 8.8 (5.0) | 6.7 (5.2) |  |
  Change from baseline | Estimate (95 % CI) | −7.6 (−9.7, −5.5) | −8.0 (−11.3, −4.7) | −7.2 (−10.2, −4.2) | −0.8 (−5.1, 3.4) |
  Hedges' g | Estimate (95 % CI) | 1.40 (0.82, 1.98) | 1.57 (0.70, 2.44) | 1.23 (0.38, 2.09) | −0.16 (−1.00, 0.69) |
 | p-value | p < 0.001 | p < 0.001 | p < 0.001 | p = 0.684 |