Cleveland Family Study

/datasets/cfs/variables/iiiqd /datasets/cfs/variables/iiird

Lead III: Absolute amplitude of the R-wave

Units millimeters
Type numeric

Visit vs Lead III: Absolute amplitude of the R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 404.1 ± 425.2 226.5 0.0 2,490.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 403.2 ± 424.7 224.0 0.0 2,490.0 3 658
5-14 yrs old 63 807.0 ± 527.0 825.0 48.0 1,806.0 1 64
15-24 yrs old 112 696.3 ± 516.0 612.5 14.0 2,490.0 - 112
25-34 yrs old 62 430.2 ± 403.3 273.0 0.0 1,420.0 - 62
35-44 years 97 292.6 ± 301.3 156.0 0.0 1,796.0 1 98
45-54 years 147 307.4 ± 300.2 151.0 0.0 1,313.0 1 148
55-64 years 84 214.7 ± 259.0 102.0 0.0 1,201.0 - 84
65-74 years 57 175.3 ± 167.4 102.0 0.0 668.0 - 57
75-84 years 31 205.7 ± 293.6 107.0 0.0 1,499.0 - 31
85 years or older 2 299.5 ± 183.1 299.5 170.0 429.0 - 2

Sex vs Lead III: Absolute amplitude of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 404.1 ± 425.2 226.5 0.0 2,490.0 3 735
Female 404 414.6 ± 416.3 273.0 0.0 2,114.0 2 406
Male 328 391.2 ± 436.2 175.0 0.0 2,490.0 1 329

Race vs Lead III: Absolute amplitude of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 404.1 ± 425.2 226.5 0.0 2,490.0 3 735
White 303 368.6 ± 375.7 224.0 0.0 2,490.0 1 304
Black 407 421.7 ± 456.1 219.0 0.0 2,114.0 2 409
Other 22 566.1 ± 433.6 544.0 43.0 1,250.0 - 22