Table 1.

Timing of outcome measurement

Measure	Baseline	GSH group each session	10 weeks (end of intervention)	16 weeks	24 weeks
Demographics	√
PHQ-9	√	√	√	√	√
CIS-R	√
BDI	√		√	√	√
GRID HAM-D	√		√	√	√
GAD-7	√	√	√	√	√
OCI-R	√		√	√	√
PANAS	√	√	√	√	√
WSAS	√	√	√	√	√
SF-12	√		√	√	√
EQ-5D-5L	√		√	√	√
Participant Global Rating of Change				√	√
RBQ-2A	√
RRQ	√		√
Economic evaluation			√	√	√

BDI, Beck Depression Inventory; CIS-R, Clinical Interview Schedule-Revised; EQ-5D-5L, EUROQOL 5 dimensions 5 levels; GAD-7, General Anxiety Disorder Questionnaire; GRID-HAM-D, GRID Hamilton Rating Scale for Depression; GSH, guided self help; OCI-R, Obsessive Compulsive Inventory-Revised; PANAS, Positive and Negative Affect Schedule; PHQ-9, Patient Health Questionnaire; RBQ-2A, Repetitive Behaviours Questionnaire; RRQ, Rumination-Reflection Questionnaire; SF-12, 12-Item Short Form Health Survey; WSAS, Work and Social Adjustment Scale.