Cleveland Family Study

/datasets/cfs/variables/v2rd /datasets/cfs/variables/v2rpd

V2: Amplitude of the secondary R-wave

Units millimeters
Type numeric

Visit vs V2: Amplitude of the secondary R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 18.1 ± 93.5 0.0 0.0 1,406.0 3 735

Age at time of visit vs V2: Amplitude of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 18.4 ± 96.8 0.0 0.0 1,406.0 3 658
5-14 yrs old 63 25.2 ± 94.4 0.0 0.0 668.0 1 64
15-24 yrs old 112 21.0 ± 73.3 0.0 0.0 571.0 - 112
25-34 yrs old 62 19.0 ± 115.8 0.0 0.0 903.0 - 62
35-44 years 97 7.3 ± 31.3 0.0 0.0 200.0 1 98
45-54 years 147 6.4 ± 32.9 0.0 0.0 297.0 1 148
55-64 years 84 18.8 ± 72.4 0.0 0.0 556.0 - 84
65-74 years 57 32.4 ± 151.9 0.0 0.0 981.0 - 57
75-84 years 31 60.1 ± 263.0 0.0 0.0 1,406.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs V2: Amplitude of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 18.1 ± 93.5 0.0 0.0 1,406.0 3 735
Female 404 18.0 ± 94.1 0.0 0.0 1,406.0 2 406
Male 328 18.3 ± 92.9 0.0 0.0 981.0 1 329

Race vs V2: Amplitude of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 18.1 ± 93.5 0.0 0.0 1,406.0 3 735
White 303 25.4 ± 117.5 0.0 0.0 1,406.0 1 304
Black 407 12.1 ± 67.4 0.0 0.0 903.0 2 409
Other 22 27.5 ± 129.0 0.0 0.0 605.0 - 22