Figure 1

Standardized predicted vales of PA (y axis) per combination of group (control/MBCT), assessment time (baseline/post) and SNP genotype for significant interaction effects only; controlled for the mean baseline PA, gender and age. Follow-up analyses were performed to test whether the change in PA from baseline to post intervention within a group (control/MBCT) differed per genotype: *P⩽0.05; **P⩽0.01; ***P⩽0.001. CB, baseline measurement in control group; CP, post assessment in the control group; MB, baseline measurement in the MBCT group; MP, post assessment in the MBCT group; PA, positive effect.