Table 6.
Sleep Parameters in Volunteers During the First Night After Taking a Capsule of Poly-Zinc-Liothyronine, L-triiodothyronine, or Placebo
| PZL | LT3 | PB | |
|---|---|---|---|
| Bedtime (minutes from midnight) | 11 ± 72 | −2.9 ± 57 | 12 ± 62 |
| Wake time (minutes from midnight) | 503 ± 73 | 509 ± 47 | 520 ± 71 |
| Time in bed (minutes) | 492 ± 37 | 512 ± 49 | 509 ± 40 |
| Assumed sleep (minutes) | 436 ± 46 | 442 ± 48 | 448 ± 32 |
| Actual sleep (minutes) | 394 ± 48 | 401 ± 44 | 408 ± 30 |
| Percent sleep (%) | 90 ± 3.1 | 91 ± 2.5 | 91 ± 1.9 |
| WASO (minutes) | 41 ± 11 | 40 ± 12 | 39 ± 10 |
| Sleep efficiency (%) | 80 ± 5.9 | 78 ± 4.2 | 80 ± 4.0 |
| Sleep fragmentation (%+%) | 17 ± 5.6 | 19 ± 7.5 | 17 ± 5.2 |
Numbers are the mean ± SD; for the time data, those are in minutes from midnight.
Bedtime, the beginning of the rest interval; waketime, the end of the rest interval; time in bed, total minutes from bedtime to waketime; actual sleep, the total number of epochs within the entire rest interval scored as sleep multiplied by the epoch length in minutes, percent sleep is the percentage of scored total sleep over the sleep interval multiplied by 100; WASO, the total number of epochs scored as wake within the sleep interval multiplied by the epoch length in minutes; sleep efficiency, the percentage of scored total sleep over the time in bed thus including time in bed before initial sleep onset and final awakening; sleep fragmentation, the sum of the percent mobile and percent immobile bouts as defined by actiware software for the entire rest interval.
WASO, wake after sleep onset.