Sleep architectures of obese and control groups
| Obese group (n = 46) | Control group (n = 44) | |||
|---|---|---|---|---|
| All data were mean values of two nights except for three subjects (see text). | ||||
| SD in parentheses. | ||||
| Tis%, % of total time in sleep. | ||||
| MSLT, all except one obese subject. | ||||
| Total sleep time, TST (min) | 542.9 | (15.8) | 542.3 | (15.3) |
| Actual sleep time, AST (min) | 459.1 | (51.1) | 464.3 | (46.0) |
| Sleep efficiency, SE (%) | 84.6 | (9.1) | 85.6 | (8.0) |
| Sleep onset latency, SOL (min) | 23.3 | (22.1) | 22.3 | (15.4) |
| REM onset latency, ROL (min) | 132.1 | (46.7) | 117.2 | (32.3) |
| Stage 1 (Tis%) | 5.4 | (2.1) | 5.7 | (2.6) |
| Stage 2 (Tis%) | 48.2 | (6.3) | 48.6 | (7.9) |
| Stage 3 (Tis%) | 7.4 | (2.7) | 6.7 | (2.6) |
| Stage 4 (Tis%) | 19.5 | (6.9) | 18.7 | (7.3) |
| REM sleep (Tis%) | 19.5 | (4.3) | 20.2 | (3.8) |
| MSLT (min) | 15.5 | (3.4) | 14.7 | (4.2) |