. Author manuscript; available in PMC: 2013 Jul 1.

Published in final edited form as: Psychosom Med. 2012 Jun 28;74(6):620–627. doi: 10.1097/PSY.0b013e31825abfaa

Table 3.

Observed mean scores and effect sizes for outcome measures over time by treatment condition, N=171–173

Time/TX Condition	CD4 Count			SCL-90R			MSCL
	M (SD)	^a M ^Δ	d	M (SD)	^a M ^Δ	d	M (SD)	^a M ^Δ	d
Pre-test
MBSR	479.05 (180.88)			109.32 (64.81)			24.92 (16.75)
ESC	579.67 (188.67)			109.23 (59.16)			25.58 (14.49)
Post-test
MBSR	504.48 (186.45)	+25.44^***	.62	97.46 (60.68)	−11.86^***	−1.34	18.49 (13.85)	−6.42^***	−1.26
ESC	582.20 (189.72)	+2.52	.08	109.38 (59.12)	+0.15	<.01	25.73 (14.59)	+0.15	.07
Diff. in d			.54			1.34			1.33
3-month
MBSR	503.71 (182.07)	+24.66^***	.65	101.74 (60.84)	−7.58^***	−.85	18.91 (13.82)	−6.01^***	−1.16
ESC	579.33 (188.57)	−0.35	−.01	109.44 (60.14)	+0.21	.02	25.69 (14.61)	+0.11	.09
Diff. in d			.66			.87			1.25
6-month
MBSR	499.56 (183.47)	+20.52^***	.54	106.32 (61.77)	−3.00^**	−.35	18.88 (13.75)	−6.04^***	−1.15
ESC	579.00 (188.64)	−0.67	−.02	109.70 (60.76)	+0.47	.02	25.72 (14.63)	+0.14	.06
Diff. in d			.56			.37			1.21
9-month
MBSR	487.09 (183.62)	+8.05^*	.29	110.68 (62.46)	+1.36	.16	19.54 (14.21)	−5.38^***	−1.10
ESC	581.10 (187.12)	+1.43	.03	110.10 (59.71)	+0.87	.04	25.73 (14.63)	−0.15	−.02
Diff. in d			.26			.12			1.08
12-month
MBSR	478.25 (182.93)	−0.80	−.10	116.11 (64.13)	+6.79^***	.79	19.82 (14.37)	−5.09^***	−1.09
ESC	579.21 (186.79)	−0.47	−.02	110.62 (60.15)	+1.39	.05	25.62 (14.58)	−0.04	−.01
Diff. in d			.08			.74			1.08

Notes. d = Cohen’s d; MBSR = mindfulness-based stress reduction; ESC = education and support condition;

^***

p < 0.001;

^**

p < 0.01;

p < 0.05;

^Δ

= difference between pre-test and follow-up period;

Paired sample t-test for differences between pretest mean score and each respective follow-up mean score;

Difference in d between treatment conditions