Table 5.
Estimates marginal means (ITT sample) from linear mixed effects models with standardized effect sizes
| Outcome | Estimates (mean, SE) |
P value (Within-group) |
P value (Between-group) |
Hedges g [95% CI] (Between-group) |
||
|---|---|---|---|---|---|---|
| t0 | t1 | t0 – t1 | ||||
| SD-SF | ||||||
| Control | 60.1 (0.68) | 59.0 (0.69) | 1.18 (0.72) | 0.103 | ||
| Sleep Tales | 59.6 (0.68) | 51.7 (0.71) | 7.94 (0.74) | <0.001 | <0.001 | 0.92 [0.63–1.22] |
| Nightwaves | 60.1 (0.68) | 51.0 (0.70) | 9.11 (0.73) | <0.001 | <0.001 | 1.09 [0.80–1.39] |
| SRI-SF | ||||||
| Control | 61.9 (0.78) | 59.8 (0.80) | 2.08 (0.80) | 0.011 | ||
| Sleep Tales | 61.6 (0.79) | 53.1 (0.82) | 8.59 (0.83) | <0.001 | <0.001 | 0.80 [0.51–1.09] |
| Nightwaves | 61.8 (0.79) | 52.4 (0.80) | 9.44 (0.81) | <0.001 | <0.001 | 0.91 [0.62–1.20] |
| Sleep duration | ||||||
| Control | 6.20 (0.11) | 6.26 (0.11) | 0.06 (0.09) | 0.506 | ||
| Sleep Tales | 6.37 (0.11) | 6.96 (0.11) | 0.59 (0.10) | <0.001 | <0.001 | 0.56 [0.27–0.84] |
| Nightwaves | 6.38 (0.11) | 6.97 (0.11) | 0.59 (0.09) | <0.001 | <0.001 | 0.57 [0.29–0.85] |
| SWEMWBS | ||||||
| Control | 19.6 (0.31) | 19.6 (0.31) | 0.00 (0.30) | 0.996 | ||
| Sleep Tales | 19.3 (0.31) | 21.3 (0.32) | 2.00 (0.31) | <0.001 | <0.001 | 0.66 [0.37–0.94] |
| Nightwaves | 20.1 (0.31) | 22.1 (0.32) | 2.01 (0.30) | <0.001 | <0.001 | 0.67 [0.38–0.95] |
| PHQ-4 | ||||||
| Control | 4.63 (0.30) | 4.87 (0.31) | -0.23 (0.27) | 0.392 | ||
| Sleep Tales | 5.09 (0.31) | 3.70 (0.31) | 1.39 (0.28) | <0.001 | <0.001 | 0.59 [0.30–0.87] |
| Nightwaves | 4.82 (0.30) | 3.00 (0.31) | 1.82 (0.27) | <0.001 | <0.001 | 0.75 [0.46–1.04] |
| Unmind Index | ||||||
| Control | 92.9 (0.94) | 93.1 (0.95) | 0.23 (0.86) | 0.784 | ||
| Sleep Tales | 92.9 (0.95) | 101.0 (0.98) | 8.13 (0.88) | <0.001 | <0.001 | 0.91 [0.62–1.20] |
| Nightwaves | 94.3 (0.94) | 102.5 (0.96) | 8.17 (0.86) | <0.001 | <0.001 | 0.92 [0.63–1.21] |
| WPAI | ||||||
| Absenteeism | ||||||
| Control | 3.82 (0.85) | 3.91 (0.87) | -0.09 (1.09) | 0.932 | ||
| Sleep Tales | 3.31 (0.87) | 1.49 (0.90) | 1.82 (1.12) | 0.105 | 0.221 | 0.17 [−0.12–0.45] |
| Nightwaves | 4.26 (0.86) | 1.37 (0.88) | 2.89 (1.10) | 0.009 | 0.055 | 0.27 [−0.01–0.55] |
| Presenteeism | ||||||
| Control | 45.0 (2.20) | 40.8 (2.24) | 4.29 (2.36) | 0.069 | ||
| Sleep Tales | 44.4 (2.22) | 24.6 (2.31) | 19.9 (2.43) | <0.001 | <0.001 | 0.65 [0.37–0.94] |
| Nightwaves | 41.7 (2.21) | 29.6 (2.26) | 12.1 (2.38) | <0.001 | 0.021 | 0.33 [0.05–0.61] |
| Total work impairment | ||||||
| Control | 46.6 (2.27) | 42.3 (2.31) | 4.33 (2.33) | 0.065 | ||
| Sleep Tales | 46.0 (2.30) | 25.5 (2.38) | 20.8 (2.41) | <0.001 | <0.001 | 0.70 [0.41–0.98] |
| Nightwaves | 44.7 (2.29) | 30.3 (2.33) | 14.4 (2.36) | <0.001 | 0.003 | 0.43 [0.15–0.71] |
| Activity impairment | ||||||
| Control | 51.4 (2.21) | 47.0 (2.24) | 4.41 (2.28) | 0.055 | ||
| Sleep Tales | 52.7 (2.23) | 33.6 (2.31) | 19.1 (2.35) | <0.001 | <0.001 | 0.63 [0.35–0.92] |
| Nightwaves | 54.1 (2.22) | 32.7 (2.26) | 21.4 (2.30) | <0.001 | <0.001 | 0.74 [0.45–1.03] |