Table 2.
Parameters of sleep efficiency and sleep architecture presented in median with its interquartile range.
| Variable | PoTS | Controls | p Value |
|---|---|---|---|
| Total in bed time (TIBT) (minutes) | 401.50 (385.00 – 423.00) | 402.00 (386.00 – 423.00) | 0.777 |
| Sleep period time (SPT) (minutes) | 372.00 (349.50 – 398.50) | 368.50 (353.50 – 396.00) | 0.847 |
| Total sleep time (TST) (minutes) | 359.00 (324.50 – 381.50) | 350.00 (332.50 – 375.50) | 0.828 |
| Sleep efficiency (TST/SPT) (%) | 96.03 (91.54 – 98.46) | 95.56 (93.06 – 98.38) | 0.981 |
| TST/TIBT (%) | 90.52 (82.95 – 93.78) | 87.26 (84.54 – 91.72) | 0.546 |
| Sleep latency (minutes) | 21.25 (16.50 – 29.00) | 24.50 (17.00 – 38.00) | 0.393 |
| REM latency (minutes) | 138.50 (64.00 – 192.50) | 122.50 (84.50 – 227.50) | 0.173 |
| Sleep stage 2 (%) | 42.45 (35.30 – 48.60) | 36.70 (30.60 – 43.00) | 0.017 |
| Slow wave sleep (%) | 39.25 (31.40 – 47.90) | 41.30 (33.00 – 50.90) | 0.337 |
| REM (%) | 15.10 (6.90 – 19.80) | 12.90 (9.90 – 18.70) | 0.537 |