Sleep measures over time, mean (SD), N=16
| Sleep measure | In hospice | 6 Months | 12 Months |
|---|---|---|---|
| Self-reported sleep quality | |||
| PSQI total score | 6.56 (3.10) | 5.81 (3.35) | 5.94 (2.57) |
| PSQI sleep quality | 0.44 (1.03) | 0.38 (0.89) | 0.25 (0.77) |
| PSQI sleep onset latency | 1.13 (0.74) | 1.00 (0.89) | 0.94 (1.12) |
| PSQI sleep duration | 0.50 (0.82) | 0.63 (0.89) | 0.81 (0.83) |
| PSQI habitual sleep efficiency | 0.88 (0.96) | 1.13 (1.20) | 0.94 (1.18) |
| PSQI sleep disturbance | 1.44 (0.51) | 1.31 (0.60) | 1.25 (0.45) |
| PSQI sleep medication* | 0.56 (0.81) | 0.13 (0.34) | 0.25 (0.45) |
| PSQI daytime dysfunction | 1.69 (0.95) | 1.25 (0.86) | 1.50 (0.82) |
| Actigraph measures | |||
| Sleep disruption | |||
| Night awakenings, n | 7.13 (4.39) | 8.96 (5.14) | 8.68 (5.02) |
| WASO, min | 105 (80) | 87 (48) | 89 (54) |
| WASO, % | 16.7 (10.8) | 14.9 (7.0) | 15.4 (9.5) |
| Sleep quantity | |||
| Total sleep in 24 h, h | 8.30 (1.29) | 8.16 (1.18) | 8.60 (1.64) |
| Total night sleep, h | 7.73 (1.10) | 7.64 (0.80) | 7.78 (1.13) |
| Total day sleep, min | 33.2 (28.9) | 30.9 (28.1) | 48.8 (43.4) |
PSQI total scores >5 are clinically significant and component scores range is 0–3, with higher scores indicating poorer sleep. The PSQI assessed sleep during past month, while actigraphy measures assessed average sleep over 4 nights and 3 days. There were no significant changes over time for any sleep measure, except the PSQI sleep medication component.
*F=4.27, p=0.042 (Greenhouse-Geisser correction), η2=0.22.
PSQI, Pittsburgh Sleep Quality Index; WASO, wake after sleep onset, a measure of sleep disruption.