Table 2

Treatment response and quality-adjusted life year (QALY) outcomes and group differences at 6-months follow-up

ACTonPainguided
(n=100)
ACTonPainunguided
(n=101)
Waitlist control group
(n=101)
Test statistic
Mean (SD)Mean (SD)Mean (SD) χ 2 (df=2)Post-hoc test*:P value
Treatment response
(pain interference)
0.44 (0.05)0.277 (0.04)0.158 (0.04)19.44†<0.001
ACTonPainguided vs CG t(1)=4.52<0.001
ACTonPainunguided vs CG t(1)=1.910.17
ACTonPainguided vs ACTonPainunguided t(1)=2.610.03
QALY
AQoL-8D
0.280 (0.08)0.266 (0.09)0.244 (0.08)9.45‡0.009
ACTonPainguided vs CG Z=−3.070.003
ACTonPainunguided vs CG Z=−1.610.16
ACTonPainguided vs ACTonPainunguided Z=−1.470.21
Sensitivity analysis
EQ5D-3L
0.274 (0.12)0.255 (0.12)0.253 (0.13)2.17‡0.34
  • CG, waitlist control group; SD, standard deviation; df, degrees of freedom; QALY, quality-adjusted life year.

  • *Post-hoc test for treatment response: Bonferroni pairwise comparison; Post-hoc test for QALY: Dunn’s test.

  • †χ2 test.

  • ‡Kruskall-Wallis H test.