Race
Visit vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Peds | - | - | - | - | - | - | - | - |
| Teenz | - | - | - | - | - | - | - | - |
| TREC | 513 | 4.1 | ± 2.6 | 3.6 | 0.4 | 20.4 | 4 | 517 |
Age at time of visit vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
TREC
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 513 | 4.1 | ± 2.6 | 3.6 | 0.4 | 20.4 | 4 | 517 |
| 16.14 to 17.41 years | 129 | 4.0 | ± 2.4 | 3.6 | 0.7 | 15.4 | 1 | 130 |
| 17.41 to 17.69 years | 128 | 4.3 | ± 3.0 | 3.7 | 0.4 | 20.4 | 1 | 129 |
| 17.69 to 17.91 years | 128 | 4.3 | ± 2.3 | 3.8 | 0.7 | 12.2 | 1 | 129 |
| 17.91 to 19.56 years | 128 | 4.1 | ± 2.7 | 3.4 | 0.4 | 18.3 | 1 | 129 |
Male gender vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
TREC
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 513 | 4.1 | ± 2.6 | 3.6 | 0.4 | 20.4 | 4 | 517 |
| No | 254 | 3.8 | ± 2.5 | 3.4 | 0.4 | 20.4 | 2 | 256 |
| Yes | 259 | 4.5 | ± 2.7 | 3.8 | 0.4 | 18.3 | 2 | 261 |
Race vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
TREC
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 513 | 4.1 | ± 2.6 | 3.6 | 0.4 | 20.4 | 4 | 517 |
| White | 307 | 4.1 | ± 2.4 | 3.6 | 0.4 | 18.2 | 2 | 309 |
| Black | 183 | 4.3 | ± 2.9 | 3.6 | 0.7 | 20.4 | 2 | 185 |
| Other | 23 | 4.1 | ± 2.2 | 3.6 | 1.6 | 9.4 | - | 23 |