Race
Visit vs Total duration of sleep in stage 3/4 sleep from type I polysomnography
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Visit 5 | 711 | 78.2 | ± 54.7 | 72.0 | 0.0 | 354.0 | 24 | 735 |
Participant's age (category) vs Total duration of sleep in stage 3/4 sleep from type I polysomnography
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 638 | 78.2 | ± 55.2 | 72.0 | 0.0 | 354.0 | 20 | 658 |
| 5-14 yrs old | 63 | 179.3 | ± 58.5 | 179.0 | 75.0 | 354.0 | 1 | 64 |
| 15-24 yrs old | 110 | 101.2 | ± 38.4 | 100.0 | 18.0 | 247.0 | 2 | 112 |
| 25-34 yrs old | 61 | 78.1 | ± 36.8 | 74.0 | 0.0 | 159.0 | 1 | 62 |
| 35-44 years | 93 | 62.0 | ± 34.7 | 63.0 | 0.0 | 144.0 | 5 | 98 |
| 45-54 years | 141 | 61.7 | ± 34.8 | 61.0 | 0.0 | 180.0 | 7 | 148 |
| 55-64 years | 83 | 52.1 | ± 40.2 | 48.0 | 0.0 | 170.0 | 1 | 84 |
| 65-74 years | 54 | 43.7 | ± 38.5 | 39.0 | 0.0 | 163.0 | 3 | 57 |
| 75-84 years | 31 | 49.9 | ± 50.0 | 30.0 | 0.0 | 191.0 | - | 31 |
| 85 years or older | 2 | 3.5 | ± 4.9 | 3.5 | 0.0 | 7.0 | - | 2 |
Participant's sex vs Total duration of sleep in stage 3/4 sleep from type I polysomnography
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 711 | 78.2 | ± 54.7 | 72.0 | 0.0 | 354.0 | 24 | 735 |
| Female | 398 | 85.4 | ± 49.3 | 79.0 | 0.0 | 354.0 | 8 | 406 |
| Male | 313 | 69.0 | ± 59.7 | 58.0 | 0.0 | 341.0 | 16 | 329 |
Participant's race vs Total duration of sleep in stage 3/4 sleep from type I polysomnography
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 711 | 78.2 | ± 54.7 | 72.0 | 0.0 | 354.0 | 24 | 735 |
| White | 296 | 81.0 | ± 54.2 | 76.5 | 0.0 | 354.0 | 8 | 304 |
| Black | 393 | 75.1 | ± 55.4 | 67.0 | 0.0 | 316.0 | 16 | 409 |
| More than one race | 22 | 95.3 | ± 45.3 | 91.0 | 30.0 | 206.0 | - | 22 |