Table 4b.
PSQI Sleep Quality Factors, Subsample, Global PSQI Score ≤ 5
| Measure | November | January | March | May | |
|---|---|---|---|---|---|
| Exercise | MBSR and EX classes | ||||
| PSQ mean ± SD | 0.36 ± 0.09 | 0.42 ± 0.15 | 0.43 ± 0.15 | 0.42 ± 0.21 | |
| PSQ mean dif. c/w Ctl [95% CI] | −0.09 [−0.14, −0.05] | 0.01 [−0.03, 0.06] | −0.04 [−0.10, 0.01] | 0.008 [−0.06, 0.08] | |
| PSQ P value | 0.000 | 0.572 | 0.112 | 0.278 | |
| SEf mean ± SD | 0.14 ± 0.18 | 0.18 ± 0.17 | 0.20 ± 0.18 | 0.19 ± 0.19 | |
| SEf mean dif. c/w Ctl [95% CI] | 0.004 [−0.05, 0.06] | 0.04 [−0.01, 0.12] | 0.06 [0.001, 0.11] | 0.02 [−0.04, 0.08] | |
| SEf P value | 0.883 | 0.153 | 0.046 | 0.505 | |
| DD mean ± SD | 0.89 ± 0.20 | 0.88 ± 0.15 | 0.80 ± 0.23 | 0.79 ± 0.28 | |
| DD mean dif. c/w Ctl [95% CI] | −0.04 [ −0.09, 0.01] | −0.06 [ −0.10, −0.01] | −0.08 [−0.15, −0.004] | −0.04 [−0.13, 0.05] | |
| DD P value | 0.122 | 0.009 | 0.038 | 0.387 | |
| Meditation | |||||
| PSQ mean ± SD | 0.40 ± 0.17 | 0.35 ± 0.10 | 0.38 ± 0.18 | 0.45 ± 0.22 | |
| PSQ mean dif. c/w Ctl [95% CI] | −0.05 [−0.11, 0.01] | −0.06 [−0.10, −0.02] | −0.09 [−0.15, −0.03] | 0.04 [−0.03, 0.11] | |
| PSQ P value | 0.107 | 0.005 | 0.002 | 0.822 | |
| SEf mean ± SD | 0.22 ± 0.18 | 0.21 ± 0.17 | 0.18 ± 0.19 | 0.17 ± 0.19 | |
| SEf mean dif. c/w Ctl [95% CI] | 0.08 [0.02, 0.14] | 0.07 [0.02, 0.12] | 0.03 [−0.02, 0.09] | 0.003 [−0.06, 0.07] | |
| SEf P value | 0.006 | 0.008 | 0.214 | 0.917 | |
| DD mean ± SD | 0.82 ± 0.24 | 0.75 ± 0.19 | 0.76 ± 0.22 | 0.76 ± 0.28 | |
| DD mean dif. c/w Ctl [95% CI] | −0.11 [ −0.17, −0.05] | −0.19 [−0.23, −0.14] | −0.12 [−0.19, −0.04] | −0.07 [−0.16, 0.02] | |
| DD P value | 0.000 | 0.000 | 0.001 | 0.110 | |
| Control | |||||
| PSQ mean ± SD | 0.45 ± 0.18 | 0.41 ± 0.14 | 0.47 ± 0.19 | 0.41 ± 0.22 | |
| SEf mean ± SD | 0.14 ± 0.16 | 0.14 ± 0.15 | 0.15 ± 0.16 | 0.17 ± 0.19 | |
| DD mean ± SD | 0.93 ± 0.11 | 0.94 ± 0.11 | 0.88 ± 0.23 | 0.83 ± 0.28 |
SD = standard deviation; CI= confidence interval
PSQ = Perceived Sleep Quality PSQI factor
SEf = Sleep Efficiency PSQI factor
DD = Daily Disturbances PSQI factor
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