Table 2.

Mean (and SD) Psychosocial Outcome Values in MBSR and SS Conditions at Pre-Treatment, Post-Treatment, and Follow-Up Phases for Intent-to-Treat Sample.

		MBSR				SS
Variable	Pre-treat	Post-treat	Follow-up	d	Pre-treat	Post-treat	Follow-up	d	pinter
PSS	21.52 ± 5.31	15.84 ± 5.26	18.11 ± 5.50	.63	19.93 ± 5.70	18.93 ± 6.80	17.80 ± 6.03	.36	.003
AAQ	49.35 ± 8.29	54.21 ± 7.55	53.79 ± 7.61	−.58	49.13 ± 14.04	53.67 ± 9.66	53.40 ± 9.78	−.35	.821
POMS
Tension	2.68 ± 0.73	2.04 ± 0.72	2.17 ± 0.75	.69	2.73 ± 1.06	2.62 ± 0.96	2.29 ± 0.82	.46	.024
Depression	1.97 ± 0.58	1.37 ± 0.35	1.67 ± 0.63	.50	2.18 ± 1.24	1.80 ± 0.76	1.83 ± 0.96	.32	.196
Anger	2.00 ± 0.78	1.43 ± 0.39	1.72 ± 0.71	.38	2.18 ± 1.08	2.06 ± 0.89	1.84 ± 0.89	.34	.016
Confusion	2.41 ± 0.67	1.92 ± 0.61	2.09 ± 0.60	.50	2.30 ± 0.97	2.18 ± 0.87	2.04 ± 1.06	.26	.090
Fatigue	2.79 ± 1.02	2.14 ± 1.00	2.25 ± 0.96	.55	2.82 ± 1.04	2.53 ± 1.18	2.35 ± 0.95	.47	.180
Vitality	2.69 ± 0.68	3.24 ± 0.88	2.94 ± 0.85	−.33	2.70 ± 0.91	3.02 ± 0.66	3.09 ± 0.80	−.46	.213
SF-36
Mental health	46.74 ± 10.36	53.81 ± 9.55	49.09 ± 7.62	−.26	48.81 ± 13.72	51.66 ± 11.65	49.83 ± 11.55	−.08	.233
Physical health	32.16 ± 7.56	29.75 ± 6.24	35.12 ± 6.40	−.42	32.87 ± 6.83	32.18 ± 8.40	34.23 ± 5.57	−.22	.281
ZBI	48.17 ± 12.34	38.58 ± 11.93	43.05 ± 11.35	.43	40.60 ± 16.71	37.80 ± 21.41	36.43 ± 20.89	.22	.046
FCI-MS	41.52 ± 10.29	40.53 ± 10.81	40.42 ± 10.32	.11	41.07 ± 9.79	42.53 ± 11.03	41.36 ± 10.92	−.03	.487

Notes. N = 38 at baseline. MBSR = Mindfulness-based Stress Reduction; SS = Social Support. PSS = Perceived Stress Scale; AAQ = Acceptance and Action Questionnaire II; POMS = Profile of Mood States; SF-36 = Medical Outcomes Study Short-Form Health Survey; ZBI = Zarit Burden Interview; FCI-MS = Family Care Inventory - Mutuality Scale. The d column shows Cohen’s d effect sizes based on unadjusted pre-test and follow-up means within each condition. The p_inter column shows REML mixed model treatment condition × study phase interaction significance levels.