Cleveland Family Study

/datasets/cfs/variables/v1qd /datasets/cfs/variables/v1rd

V1: Absolute amplitude of the R-wave

Units millimeters
Type numeric

Visit vs V1: Absolute amplitude of the R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 179.7 ± 187.0 126.0 0.0 1,254.0 3 735

Age at time of visit vs V1: Absolute amplitude of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 184.1 ± 192.7 131.0 0.0 1,254.0 3 658
5-14 yrs old 63 418.9 ± 295.8 375.0 0.0 1,254.0 1 64
15-24 yrs old 112 252.1 ± 214.1 185.0 0.0 1,074.0 - 112
25-34 yrs old 62 168.3 ± 137.9 133.5 0.0 717.0 - 62
35-44 years 97 171.0 ± 141.4 136.0 0.0 1,005.0 1 98
45-54 years 147 124.0 ± 117.2 92.0 0.0 805.0 1 148
55-64 years 84 113.9 ± 103.5 92.0 0.0 458.0 - 84
65-74 years 57 115.4 ± 134.5 78.0 0.0 766.0 - 57
75-84 years 31 140.8 ± 220.4 63.0 0.0 864.0 - 31
85 years or older 2 97.5 ± 89.8 97.5 34.0 161.0 - 2

Sex vs V1: Absolute amplitude of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 179.7 ± 187.0 126.0 0.0 1,254.0 3 735
Female 404 166.3 ± 162.1 122.0 0.0 1,079.0 2 406
Male 328 196.3 ± 212.8 136.0 0.0 1,254.0 1 329

Race vs V1: Absolute amplitude of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 179.7 ± 187.0 126.0 0.0 1,254.0 3 735
White 303 152.2 ± 145.7 117.0 0.0 864.0 1 304
Black 407 196.6 ± 208.3 136.0 0.0 1,254.0 2 409
Other 22 246.7 ± 226.9 158.5 24.0 1,074.0 - 22