Name
iira
Label
Lead II: Absolute amplitude of the R-wave
Units
millimeters
Type
numeric
Visit vs Lead II: Absolute amplitude of the R-wave
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Visit 5 | 732 | 972.0 | ± 458.7 | 934.5 | 0.0 | 2,578.0 | 3 | 735 |
Age at time of visit vs Lead II: Absolute amplitude of the R-wave
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 655 | 965.8 | ± 467.0 | 927.0 | 0.0 | 2,578.0 | 3 | 658 |
| 5-14 yrs old | 63 | 1,417.7 | ± 519.6 | 1,494.0 | 34.0 | 2,246.0 | 1 | 64 |
| 15-24 yrs old | 112 | 1,319.0 | ± 437.4 | 1,208.0 | 585.0 | 2,578.0 | - | 112 |
| 25-34 yrs old | 62 | 1,021.7 | ± 372.7 | 986.0 | 29.0 | 1,909.0 | - | 62 |
| 35-44 years | 97 | 888.7 | ± 314.2 | 869.0 | 278.0 | 2,412.0 | 1 | 98 |
| 45-54 years | 147 | 864.4 | ± 366.3 | 820.0 | 19.0 | 2,055.0 | 1 | 148 |
| 55-64 years | 84 | 736.6 | ± 373.0 | 683.0 | 24.0 | 1,972.0 | - | 84 |
| 65-74 years | 57 | 638.9 | ± 322.7 | 576.0 | 24.0 | 1,269.0 | - | 57 |
| 75-84 years | 31 | 617.9 | ± 449.6 | 566.0 | 0.0 | 1,801.0 | - | 31 |
| 85 years or older | 2 | 749.0 | ± 438.4 | 749.0 | 439.0 | 1,059.0 | - | 2 |
Sex vs Lead II: Absolute amplitude of the R-wave
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 732 | 972.0 | ± 458.7 | 934.5 | 0.0 | 2,578.0 | 3 | 735 |
| Female | 404 | 1,003.0 | ± 407.2 | 971.0 | 0.0 | 2,412.0 | 2 | 406 |
| Male | 328 | 933.8 | ± 513.3 | 898.0 | 19.0 | 2,578.0 | 1 | 329 |
Race vs Lead II: Absolute amplitude of the R-wave
Visit 5
| N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
|---|---|---|---|---|---|---|---|---|
| Total | 732 | 972.0 | ± 458.7 | 934.5 | 0.0 | 2,578.0 | 3 | 735 |
| White | 303 | 858.1 | ± 418.4 | 849.0 | 19.0 | 2,578.0 | 1 | 304 |
| Black | 407 | 1,043.9 | ± 472.8 | 1,005.0 | 0.0 | 2,470.0 | 2 | 409 |
| Other | 22 | 1,209.0 | ± 375.9 | 1,286.0 | 566.0 | 1,752.0 | - | 22 |