Table 2.

PSQI Global Scores at 1-, 3-, 5- and 7- months follow-up

Measure		November 1-mo. follow-up	January 3-mo. follow-up	March 5-mo. follow-up	May 7-mo. follow-up
Exercise	MBSR and EX classes
Mean ± SD		5.11 ± 2.36	5.15 ± 2.34	5.18 ± 2.36	5.12 ± 2.37
Mean dif. c/w Ctl [95% CI]		0.98 [−0.41, −1.56]	0.73 [0.15, 1.32]	0.58 [0.00, 1.16]	0.84 [0.26, 1.41]
P value		0.0006	0.01	0.05	0.001
Cohen d ES [95% CI]		0.42 [0.17, 0.66]	0.31 [0.06, 0.56]	0.25 [0.00, 0.49]	0.35 [0.11, 0.60]
Meditation
Mean ± SD		5.57 ± 2.36	5.16 ± 2.32	5.28 ± 2.35	5.18 ± 2.36
Mean dif. c/w Ctl [95% CI]		0.53 [−0.04, 1.10]	0.73 [0.14, 1.31]	0.48 [−0.09, 1.06]	0.78 [0.20, 1.35]
P value		0.07	0.02	0.10	0.01
Cohen d ES [95% CI]		0.22 [−0.02, 0.47]	0.31 [0.06, 0.56]	0.21 [−0.04, 0.45]	0.33 [0.08, 0.57]
Control
Mean ± SD		6.10 ± 2.37	5.89 ± 2.35	5.76 ± 2.36	5.96 ± 2.36

SD = standard deviation; CI = confidence interval; ES = effect size

Mean dif c/w Ctl = Mean difference between intervention group and control group

P-values come from group comparison T-tests at each time point

Mean difference and effect size are shown in absolute values, so that a positive number indicates benefit (lower PSQI scores), compared to control