Cleveland Family Study

/datasets/cfs/variables/iiird /datasets/cfs/variables/iiirpd

Lead III: Amplitude of the secondary R-wave

Units millimeters
Type numeric

Visit vs Lead III: Amplitude of the secondary R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 74.2 ± 180.8 0.0 0.0 1,782.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 71.5 ± 178.9 0.0 0.0 1,782.0 3 658
5-14 yrs old 63 126.7 ± 350.3 0.0 0.0 1,782.0 1 64
15-24 yrs old 112 68.1 ± 179.7 0.0 0.0 1,176.0 - 112
25-34 yrs old 62 74.0 ± 169.8 0.0 0.0 976.0 - 62
35-44 years 97 81.5 ± 172.1 0.0 0.0 893.0 1 98
45-54 years 147 50.0 ± 99.4 0.0 0.0 546.0 1 148
55-64 years 84 74.3 ± 146.1 0.0 0.0 937.0 - 84
65-74 years 57 50.8 ± 98.9 0.0 0.0 449.0 - 57
75-84 years 31 72.0 ± 188.3 0.0 0.0 947.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs Lead III: Amplitude of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 74.2 ± 180.8 0.0 0.0 1,782.0 3 735
Female 404 66.6 ± 160.5 0.0 0.0 1,176.0 2 406
Male 328 83.7 ± 202.8 0.0 0.0 1,782.0 1 329

Race vs Lead III: Amplitude of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 74.2 ± 180.8 0.0 0.0 1,782.0 3 735
White 303 53.4 ± 118.1 0.0 0.0 947.0 1 304
Black 407 89.8 ± 216.5 0.0 0.0 1,782.0 2 409
Other 22 72.0 ± 141.6 0.0 0.0 405.0 - 22