Table 2.
Armband sleep parameters in ‘good’ and ‘poor’ sleepers, according to PSQI
| PSQI < 5 (n = 42) | PSQI≥5 (n = 136) | P | |
|---|---|---|---|
| Number of recording nights | 5.0 [2.0] | 5.0 [3.0] | 0.935 |
| Percentage of worn time | 99.0 [5.0] | 100.0 [3.0] | 0.302 |
| TIB, min | 510.8 [146.2] | 529.1 [134.2] | 0.734 |
| TST, min | 432.2 [145.6] | 426.6 [152.1] | 0.502 |
| SE, % | 82.0 [13.0] | 84.0 [12.0] | 0.194 |
| SOL, min | 20.9 [29.3] | 16.4 [20.4] | 0.438 |
| Numbers of wake‐ups | 8.4 [5.1] | 8.5 [4.1] | 0.311 |
| WASO, min | 108.2 [97.5] | 110.7 [84.2] | 0.629 |
| Numbers of naps | 3.0 [4.0] | 3.0 [3.0] | 0.665 |
| Nap duration, min | 33.0 [23.0] | 36.0 [29.7] | 0.712 |
Note: Data are presented as median [interquartile range]. PSQI, Pittsburgh Sleep Quality Index; SE, sleep efficiency; SOL, sleep on latency; TIB, time in bed; TST, total sleep time; WASO, wakefulness after sleep onset.