Mindfulness Meditation Targets Transdiagnostic Symptoms Implicated in Stress-Related Disorders: Understanding Relationships between Changes in Mindfulness, Sleep Quality, and Physical Symptoms

Table 1

Pre-post changes and effect sizes for MBSR outcome measures.

Outcome measure	Pre; mean (SD)	Post; mean (SD)	Change; mean (SD)	df		value
Mindfulness (CAMS-R)	29.86 (5.71)	35.22 (5.18)	5.36 (5.14)	212	15.21	<0.001	1.04
Stress symptoms (CHIPS)	20.59 (14.97)	14.13 (11.21)	−6.46 (11.32)	198	8.06	<0.001	0.57
Sleep quality (PSQI)	6.45 (3.77)	5.28 (3.28)	−1.17 (2.80)	186	5.67	<0.001	0.42
Rumination (RRS)	46.91 (10.80)	40.71 (8.54)	−6.20 (9.15)	200	9.61	<0.001	0.68
Unwanted intrusive thoughts (WBSI)	28.74 (8.02)	24.72 (7.04)	−4.02 (6.17)	203	9.31	<0.001	0.65
Thought suppression (WBSI)	18.53 (5.24)	16.54 (4.34)	−2.00 (4.06)	203	7.02	<0.001	0.49
Experiential avoidance (AAQ-9)	32.90 (8.34)	28.75 (7.58)	−4.15 (6.54)	70	5.35	<0.001	0.63
Expressive suppression (ERQ)	3.12 (1.26)	2.83 (1.03)	−0.29 (1.04)	202	4.02	<0.001	0.28
Cognitive reappraisal (ERQ)	4.48 (1.14)	5.16 (0.84)	0.68 (1.11)	202	8.78	<0.001	0.62