Age
Visit vs Total duration of sleep in stage 2 sleep from type I polysomnography
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Visit 5 | 707 | 208.0 | ± 58.9 | 210.0 | 14.0 | 400.0 | 28 | 735 |
Participant's age (category) vs Total duration of sleep in stage 2 sleep from type I polysomnography
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 634 | 207.7 | ± 60.1 | 210.0 | 14.0 | 400.0 | 24 | 658 |
| 5-14 yrs old | 63 | 157.6 | ± 55.5 | 157.0 | 42.0 | 283.0 | 1 | 64 |
| 15-24 yrs old | 110 | 208.4 | ± 51.1 | 209.0 | 14.0 | 311.0 | 2 | 112 |
| 25-34 yrs old | 61 | 225.1 | ± 58.2 | 232.0 | 85.0 | 378.0 | 1 | 62 |
| 35-44 years | 93 | 234.6 | ± 55.0 | 237.0 | 79.0 | 376.0 | 5 | 98 |
| 45-54 years | 141 | 210.5 | ± 56.1 | 210.0 | 54.0 | 400.0 | 7 | 148 |
| 55-64 years | 83 | 209.8 | ± 63.0 | 213.0 | 63.0 | 395.0 | 1 | 84 |
| 65-74 years | 52 | 196.3 | ± 59.7 | 191.5 | 45.0 | 344.0 | 5 | 57 |
| 75-84 years | 29 | 189.4 | ± 65.1 | 200.0 | 14.0 | 299.0 | 2 | 31 |
| 85 years or older | 2 | 226.5 | ± 10.6 | 226.5 | 219.0 | 234.0 | - | 2 |
Participant's sex vs Total duration of sleep in stage 2 sleep from type I polysomnography
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 707 | 208.0 | ± 58.9 | 210.0 | 14.0 | 400.0 | 28 | 735 |
| Female | 394 | 205.9 | ± 55.3 | 209.0 | 14.0 | 378.0 | 12 | 406 |
| Male | 313 | 210.7 | ± 63.2 | 212.0 | 14.0 | 400.0 | 16 | 329 |
Participant's race vs Total duration of sleep in stage 2 sleep from type I polysomnography
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 707 | 208.0 | ± 58.9 | 210.0 | 14.0 | 400.0 | 28 | 735 |
| White | 294 | 199.2 | ± 55.8 | 199.0 | 14.0 | 376.0 | 10 | 304 |
| Black | 391 | 214.6 | ± 61.3 | 219.0 | 14.0 | 400.0 | 18 | 409 |
| More than one race | 22 | 209.1 | ± 42.6 | 210.0 | 136.0 | 309.0 | - | 22 |