Cleveland Family Study

/datasets/cfs/variables/v4qd /datasets/cfs/variables/v4rd

V4: Absolute amplitude of the R-wave

Units millimeters
Type numeric

Visit vs V4: Absolute amplitude of the R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 1,305.3 ± 686.0 1,181.0 97.0 4,350.0 3 735

Age at time of visit vs V4: Absolute amplitude of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 1,306.2 ± 690.7 1,181.0 97.0 4,125.0 3 658
5-14 yrs old 63 2,143.7 ± 670.4 2,114.0 747.0 4,082.0 1 64
15-24 yrs old 112 1,639.7 ± 742.5 1,411.0 410.0 3,505.0 - 112
25-34 yrs old 62 1,287.3 ± 621.3 1,203.0 239.0 3,417.0 - 62
35-44 years 97 1,075.7 ± 477.4 1,035.0 224.0 2,714.0 1 98
45-54 years 147 1,097.5 ± 539.5 1,074.0 249.0 3,222.0 1 148
55-64 years 84 1,088.9 ± 469.3 1,030.0 327.0 2,456.0 - 84
65-74 years 57 1,016.4 ± 455.8 932.0 151.0 2,026.0 - 57
75-84 years 31 1,264.2 ± 966.4 1,088.0 97.0 4,125.0 - 31
85 years or older 2 1,374.0 ± 169.7 1,374.0 1,254.0 1,494.0 - 2

Sex vs V4: Absolute amplitude of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 1,305.3 ± 686.0 1,181.0 97.0 4,350.0 3 735
Female 404 1,147.1 ± 574.3 1,088.0 97.0 4,125.0 2 406
Male 328 1,500.2 ± 759.4 1,374.0 200.0 4,350.0 1 329

Race vs V4: Absolute amplitude of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 1,305.3 ± 686.0 1,181.0 97.0 4,350.0 3 735
White 303 1,149.4 ± 578.3 1,079.0 97.0 4,125.0 1 304
Black 407 1,404.4 ± 737.1 1,269.0 151.0 4,350.0 2 409
Other 22 1,620.4 ± 651.4 1,447.0 664.0 3,505.0 - 22