Cleveland Family Study

/datasets/cfs/variables/v1rd /datasets/cfs/variables/v1rpd

V1: Amplitude of the secondary R-wave

Units millimeters
Type numeric

Visit vs V1: Amplitude of the secondary R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 26.5 ± 116.0 0.0 0.0 2,080.0 3 735

Age at time of visit vs V1: Amplitude of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 28.7 ± 122.2 0.0 0.0 2,080.0 3 658
5-14 yrs old 63 44.5 ± 135.1 0.0 0.0 644.0 1 64
15-24 yrs old 112 29.9 ± 83.5 0.0 0.0 439.0 - 112
25-34 yrs old 62 26.9 ± 102.4 0.0 0.0 708.0 - 62
35-44 years 97 8.4 ± 38.1 0.0 0.0 205.0 1 98
45-54 years 147 10.7 ± 40.6 0.0 0.0 224.0 1 148
55-64 years 84 25.5 ± 87.2 0.0 0.0 610.0 - 84
65-74 years 57 55.2 ± 162.6 0.0 0.0 1,040.0 - 57
75-84 years 31 106.7 ± 382.5 0.0 0.0 2,080.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs V1: Amplitude of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 26.5 ± 116.0 0.0 0.0 2,080.0 3 735
Female 404 19.6 ± 118.0 0.0 0.0 2,080.0 2 406
Male 328 35.0 ± 113.2 0.0 0.0 1,040.0 1 329

Race vs V1: Amplitude of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 26.5 ± 116.0 0.0 0.0 2,080.0 3 735
White 303 40.9 ± 156.0 0.0 0.0 2,080.0 1 304
Black 407 16.1 ± 73.9 0.0 0.0 708.0 2 409
Other 22 18.9 ± 88.5 0.0 0.0 415.0 - 22