Table 2.
Sleep characteristics measured by actigraphy, sleep diary, and symptom survey (n = 14).
| Variables | Median (IQR) |
|---|---|
| Actigraphy | |
| Sleep onseta | 23:29 (22:11–00:30) |
| Sleep offseta | 7:24 (6:11–09:19) |
| TSTA, hours | 7.8 (6.2–8.3) |
| TSTA <7 h, n (%) | 5 (35) |
| SEA, % | 81.9 (78.9–86.0) |
| SEA <85%, n (%) | 9 (64.3) |
| WASO, minutes | 59.8 (45.0–92.8) |
| WASO >30 min, n (%) | 14 (100) |
| Sleep diary | |
| TSTD, hours | 6.6 (5.3–6.9) |
| TSTD <7 h, n (%) | 11 (79) |
| SED, % | 70.0 (62.2–80.6) |
| SED <85%, n (%) | 11 (79) |
| Self-reported sleep qualityb | |
| Refreshing sleep >3 nights, n (%) | 2 (14.3) |
| Somewhat refreshing night >3 nights, n (%) | 9 (64.3) |
| Fatigued sleep >3 nights, n (%) | 4 (28.6) |
| Insomnia symptoms, ISI score | 12.0 (6.8–15.0) |
| Clinical insomnia (ISI ≥15), n (%) | 4 (28.6) |
| Subthreshold (8 ≤ ISI ≤ 14), n (%) | 6 (42.9) |
| No clinically significant insomnia (ISS <8), n (%) | 4 (28.6) |
IQR, interquartile range; TSTA, total sleep time estimated by actigraphy; SEA, sleep efficiency estimated by actigraphy; WASO, wake after sleep onset; TSTD, total sleep time estimated by sleep diary; SED, sleep efficiency estimated by sleep diary; ISS, insomnia severity index.
a
Sleep onset, sleep offset times are presented in 24-h clock format.
b
Due to missing data (18 number of days), 96 number of days were included to examine self-reported sleep quality.