Histogram
Visit vs Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Visit 1 | 2,911 | 484.9 | ± 76.7 | 482.0 | 184.0 | 771.0 | - | 2,911 |
| Visit 2 | 1,026 | 485.7 | ± 81.1 | 487.0 | 185.0 | 823.0 | 1,885 | 2,911 |
Age at Sleep Visit 1 vs Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography
Visit 1
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 2,911 | 484.9 | ± 76.7 | 482.0 | 184.0 | 771.0 | - | 2,911 |
| 67.0 to 72.0 years | 728 | 473.4 | ± 75.3 | 471.0 | 222.0 | 771.0 | - | 728 |
| 72.0 to 76.0 years | 728 | 479.9 | ± 73.1 | 477.0 | 230.0 | 761.0 | - | 728 |
| 76.0 to 80.0 years | 728 | 486.5 | ± 77.3 | 483.0 | 184.0 | 714.0 | - | 728 |
| 80.0 to 90.0 years | 727 | 500.0 | ± 78.4 | 499.0 | 261.0 | 754.0 | - | 727 |
Gender vs Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography
Visit 1
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 2,911 | 484.9 | ± 76.7 | 482.0 | 184.0 | 771.0 | - | 2,911 |
| Female | - | - | - | - | - | - | - | - |
| Male | 2,911 | 484.9 | ± 76.7 | 482.0 | 184.0 | 771.0 | - | 2,911 |
Gender vs Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography
Visit 2
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 1,026 | 485.7 | ± 81.1 | 487.0 | 185.0 | 823.0 | 1,885 | 2,911 |
| Female | - | - | - | - | - | - | - | - |
| Male | 1,026 | 485.7 | ± 81.1 | 487.0 | 185.0 | 823.0 | 1,885 | 2,911 |
Race Category vs Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography
Visit 1
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 2,911 | 484.9 | ± 76.7 | 482.0 | 184.0 | 771.0 | - | 2,911 |
| White | 2,651 | 483.9 | ± 76.1 | 481.0 | 184.0 | 761.0 | - | 2,651 |
| African American | 99 | 517.8 | ± 92.9 | 533.0 | 248.0 | 771.0 | - | 99 |
| Asian | 85 | 480.7 | ± 74.9 | 481.0 | 241.0 | 682.0 | - | 85 |
| Native Hawaiian or Other Pacific Islander | 3 | 410.3 | ± 37.5 | 410.0 | 373.0 | 448.0 | - | 3 |
| American Indian or Alaskan Native | 1 | 452.0 | - | 452.0 | 452.0 | 452.0 | - | 1 |
| Multiracial | 30 | 489.1 | ± 64.7 | 484.0 | 363.0 | 641.0 | - | 30 |
| Unknown | 42 | 481.5 | ± 68.1 | 475.5 | 376.0 | 632.0 | - | 42 |
Race Category vs Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography
Visit 2
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 1,026 | 485.7 | ± 81.1 | 487.0 | 185.0 | 823.0 | 1,885 | 2,911 |
| White | 896 | 485.0 | ± 81.7 | 485.5 | 185.0 | 823.0 | 1,755 | 2,651 |
| African American | 41 | 490.0 | ± 99.5 | 506.0 | 263.0 | 743.0 | 58 | 99 |
| Asian | 49 | 487.3 | ± 69.8 | 486.0 | 339.0 | 657.0 | 36 | 85 |
| Native Hawaiian or Other Pacific Islander | 3 | 421.0 | ± 39.2 | 439.0 | 376.0 | 448.0 | - | 3 |
| American Indian or Alaskan Native | 1 | 508.0 | - | 508.0 | 508.0 | 508.0 | - | 1 |
| Multiracial | 14 | 516.0 | ± 62.8 | 520.0 | 405.0 | 619.0 | 16 | 30 |
| Unknown | 22 | 493.3 | ± 56.5 | 512.0 | 357.0 | 576.0 | 20 | 42 |