|  | All | Randomised Group | Between-group difference (Li-CBT – PCC) | |
---|---|---|---|---|---|
PCC | Li-CBT | ||||
Baseline | Â | Â | Â | Â | Â |
 | Mean (SD) | 12.8 (5.2) | 15.2 (4.0) | 10.2 (5.2) |  |
3Â months | |||||
 | Mean (SD) | 7.5 (5.7) | 10.9 (7.1) | 5.2 (3.3) |  |
  Change from baseline | Estimate (95 % CI) | −5.0 (−7.2, −2.7) | −3.8 (−8.3, 0.8) | −5.8 (−8.5, −3.0) | 2.0 (−3.0, 7.0) |
  Hedges' g | Estimate (95 % CI) | 0.97 (0.37, 1.57) | 0.82 (−0.11, 1.76) | 1.06 (0.20, 1.91) | 0.40 (−0.62, 1.42) |
 | p-value | p < 0.001 | p = 0.092 | p = 0.001 | p = 0.401 |
6Â months | |||||
 | Mean (SD) | 6.0 (5.7) | 7.5 (6.0) | 4.4 (5.1) |  |
  Change from baseline | Estimate (95 % CI) | −7.4 (−9.8, −5.1) | −8.2 (−11.7, −4.7) | −6.6 (−10.3, −3.0) | −1.6 (−6.4, 3.2) |
  Hedges' g | Estimate (95 % CI) | 1.25 (0.68, 1.82) | 1.51 (0.65, 2.38) | 1.09 (0.25, 1.93) | −0.26 (−1.11, 0.58) |
 | p-value | p < 0.001 | p < 0.001 | p = 0.002 | p = 0.493 |