Table 2.

Assessment schedule for all participants.

Process/assessment	Screening period	Intervention period					Follow-up period
		Week 1	Week 2	Week 3	Week 4	1 month		2 months	3 months	4 months	5 months	6 months
Screening	Aa	N/Ab	N/A	N/A	N/A	N/A		N/A	N/A	N/A	N/A	N/A
Informed consent	A	N/A	N/A	N/A	N/A	N/A		N/A	N/A	N/A	N/A	N/A
bMBCTc	N/A	Id	I	I	I	Fe		F	F	F	F	F
Waitlist	N/A	N/A	N/A	N/A	N/A	N/A		N/A	N/A	N/A	N/A	N/A
WHO-HPQf	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
FFMQg	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
UWES-9h	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
SWLSi	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
FSj	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
SPANEk	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
EQl	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
PSSm	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
ICECAP-An	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
TPSo	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
CEQp	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
Health service use	A	N/A	N/A	N/A	A	N/A		N/A	A	N/A	N/A	A
Homework engagement/qualitative data	N/A	A	A	A	A	A		A	A	A	A	A

^aA: assessment.

^bN/A: not applicable.

^cbMBCT: brief mindfulness-based cognitive therapy.

^dI: intervention.

^eF: follow-up.

^fWHO-HPQ: World Health Organization Health and Work Performance Questionnaire.

^gFFMQ: Five Facet Mindfulness Questionnaire.

^hUWES-9: 9-item Utrecht Work Engagement Scale.

ⁱSWLS: Satisfaction With Life Scale.

^jFS: Flourishing Scale.

^kSPANE: Scale of Positive and Negative Experience.

^lEQ: Experiences Questionnaire.

^mPSS: Perceived Stress Scale.

ⁿICECAP-A: Investigating Choice Experiments Capability Measure for Adults.

^oTPS: Team Psychological Safety.

^pCEQ: Credibility/Expectancy Questionnaire.