A study protocol for a cluster randomised controlled trial on mindfulness-based stress reduction: studying effects of mindfulness-based stress reduction and an additional organisational health intervention on mental health and work-related perceptions of teachers in Dutch secondary vocational schools

Table 1 SPIRIT checklist

	Study period
	Enrolment		Allocation	Before start	Post-allocation
TIMEPOINT**		t₀			*Intervention*	t₁	t₂	t₃
ENROLLMENT:
Eligibility screen	X
Informed consent	X
*[List other procedures]*	X
Allocation			X
INTERVENTIONS:
*MBSR training*					X
*MBSR training and organizational health intervention*					X
*Waiting list group*
DATA COLLECTION by on line questionnaire:
*Demographics*		X
*Primary outcome and secondary outcomes*		X				X	X	X
*Other data variables*		X				X	X	X
DATA COLLECTION *by interviews:**
*Expectations*		X		X
*Experiences*						X		X

SPIRIT Standard Protocol Items Recommendations for Interventional Trials, MBSR mindfulness-based stress reduction
*Interviews were only with some participants in MBSR training and MBSR training and organisational health intervention groups
**T0 = before the training; T1 = immediately after the training; T2 = 3 months after the training; T3 = 9 months after the training

ISSN: 1745-6215