Table 4.
Preliminary Efficacy of SHUTi OASIS in Participants with MCI (n = 10)
| Variable | Baseline* | Post-Intervention* | Test statistic | p |
|---|---|---|---|---|
| Montreal Cognitive Assessment (Range 0–30), n = 8 | 21.9 ± 2.8 (18–27) |
21.3 ± 4.5 (14–28) |
t(9) = 0.50 | 0.63 |
| Blind Montreal Cognitive Assessment (Range 0–22) | 15.9 ± 2.3 (13–20) |
15.6 ± 2.2 (13–20) |
t(9) = 0.38 | 0.71 |
| Insomnia Severity Index (Range 0–28) | 13.5 ± 4.8 (5–21) |
8.3 ± 5.3 (0–19) |
t(9) = 4.0 | <0.01 |
| Sleep efficiency, % | 77.3 ± 18.8 (21–99) |
86.5 ± 13.0 (31–99) |
t(99) = −4.8 | <0.001 |
| Total sleep time, min | 371.7 ± 114.9 (120–620) |
396.8 ± 100.4 (120–695) |
t(99) = −2.2 | 0.03 |
| Time in bed, min | 478.9 ± 76.6 (280–665) |
459.5 ± 91.6 (300–715) |
t(99) = 2.2 | 0.03 |
| Total nap duration, min | 10.6 ± 21.4 (0–90) |
23.8 ± 61.8 (0–240) |
t(99) = −2.5 | 0.02 |
| Sleep onset latency, min | 36.0 ± 40.3 (5–180) |
18.3 ± 26.3 (5–150) |
t(99) = 4.3 | <0.001 |
| Night awakenings, # | 1.5 ± 1.5 (0–8) |
1.3 ± 1.1 (0–5) |
t(99) = 1.3 | 0.20 |
| Wake after sleep onset,** min | 71.2 ± 80.6 (0–360) |
44.4 ± 54.5 (0–285) |
t(99) = 3.3 | 0.001 |
*
mean ± standard deviation (range).
**
wake after sleep onset includes early morning awakening.