Gender
Visit vs Lead II: Duration of the secondary R-wave
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Visit 5 | 732 | 1.4 | ± 6.9 | 0.0 | 0.0 | 66.0 | 3 | 735 |
Participant's age (category) vs Lead II: Duration of the secondary R-wave
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 655 | 1.5 | ± 7.3 | 0.0 | 0.0 | 66.0 | 3 | 658 |
| 5-14 yrs old | 63 | 0.9 | ± 4.9 | 0.0 | 0.0 | 33.0 | 1 | 64 |
| 15-24 yrs old | 112 | 0.6 | ± 3.8 | 0.0 | 0.0 | 29.0 | - | 112 |
| 25-34 yrs old | 62 | 0.7 | ± 4.0 | 0.0 | 0.0 | 27.0 | - | 62 |
| 35-44 years | 97 | 0.4 | ± 2.8 | 0.0 | 0.0 | 20.0 | 1 | 98 |
| 45-54 years | 147 | 1.9 | ± 7.8 | 0.0 | 0.0 | 59.0 | 1 | 148 |
| 55-64 years | 84 | 4.1 | ± 13.0 | 0.0 | 0.0 | 66.0 | - | 84 |
| 65-74 years | 57 | 2.2 | ± 9.3 | 0.0 | 0.0 | 62.0 | - | 57 |
| 75-84 years | 31 | 1.8 | ± 6.2 | 0.0 | 0.0 | 30.0 | - | 31 |
| 85 years or older | 2 | 0.0 | ± 0.0 | 0.0 | 0.0 | 0.0 | - | 2 |
Participant's sex vs Lead II: Duration of the secondary R-wave
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 732 | 1.4 | ± 6.9 | 0.0 | 0.0 | 66.0 | 3 | 735 |
| Female | 404 | 0.9 | ± 5.5 | 0.0 | 0.0 | 59.0 | 2 | 406 |
| Male | 328 | 2.0 | ± 8.2 | 0.0 | 0.0 | 66.0 | 1 | 329 |
Participant's race vs Lead II: Duration of the secondary R-wave
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 732 | 1.4 | ± 6.9 | 0.0 | 0.0 | 66.0 | 3 | 735 |
| White | 303 | 1.7 | ± 8.3 | 0.0 | 0.0 | 66.0 | 1 | 304 |
| Black | 407 | 1.3 | ± 5.9 | 0.0 | 0.0 | 59.0 | 2 | 409 |
| More than one race | 22 | 0.0 | ± 0.0 | 0.0 | 0.0 | 0.0 | - | 22 |