Testing the effectiveness of a mindfulness-based intervention to reduce emotional distress in outpatients with diabetes (DiaMind): design of a randomized controlled trial

Table 1 Measurements and time points

Concept	Questionnaire		Measurement time points
		T1	T2	T3	T4	T5	T6	T7	T8	T9
Perceived stress	PSS (14)*	x	x	x		x	x	x		x
Anxiety and depressive symptoms	HADS (14)	x	x	x		x	x	x		x
Mood	POMS (32)	x	x	x		x	x	x		x
Diabetes related problems	PAID (20)	x	x	x		x	x	x		x
Quality of life	SF12 (12)+3 items WHOQOL	x		x		x		x		x
Self-care behavior	ADSCI (11)	x		x		x		x		x
Extraversion	EPQ-E (12)	x
Type D Personality	DS14 (14)	x		x		x		x		x
Mindfulness	FFMQ(31)	x		x		x		x		x
Diabetes related mindfulness	AADQ (11)	x		x		x		x		x
Self-esteem	RSES (10)	x		x		x		x		x
Patient's background (demographics, clinical, psychological)	- (21)	x
Clinical measurements	Measurement
Glycemic control (from hospital database)	hbA1c	x			x	x			x	x
Blood pressure	Amb.24 h BP	x		x

T1 - baseline; T2 - after 4 weeks of intervention; T3 - after 8 weeks (post intervention); T4 - after 12 weeks (4 weeks post intervention); T5 - after 8 months (6 months post intervention = start training for control group). T6 thru T9 only for control group: repetition of T2 thru T5. PSS - Perceived Stress Scale; HADS - Hospital Anxiety and Depression Scale; POMS - Profile of Mood States; PAID - Problem Areas in Diabetes Survey; SF-12 - Short Form Health Survey; 3 items WHOQOL-bref⁹; ADSCI - Amsterdam Diabetes Self Care Inventory; EPQ-E - Eysenck Personality Questionnaire subscale Extraversion; DS14 - Type D personality scale; FFMQ - Five Factor Mindfulness Questionnaire; AADQ - Acceptation and Action Diabetes Questionnaire; RSES - Rosenberg Self-esteem Scale. HbA1c = hemoglobin A1c (the amount of glycated hemoglobin in blood). Amb. 24 h BP = Ambulatory 24 hour Blood Pressure monitoring.
*= number of items in questionnaire. Total number of items = 205.

ISSN: 1471-2458