Cleveland Family Study

/datasets/cfs/variables/v2ra /datasets/cfs/variables/v2rpa

V2: Duration of the R-wave

Units milliseconds
Type numeric

Visit vs V2: Duration of the R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 33.4 ± 13.8 33.0 0.0 147.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 33.7 ± 14.1 33.0 0.0 147.0 3 658
5-14 yrs old 63 32.0 ± 6.8 31.0 19.0 53.0 1 64
15-24 yrs old 112 33.1 ± 8.9 33.0 12.0 70.0 - 112
25-34 yrs old 62 32.6 ± 10.4 31.5 8.0 64.0 - 62
35-44 years 97 32.5 ± 8.7 32.0 14.0 58.0 1 98
45-54 years 147 32.0 ± 12.8 32.0 0.0 100.0 1 148
55-64 years 84 35.7 ± 15.4 35.0 10.0 139.0 - 84
65-74 years 57 35.7 ± 22.3 35.0 0.0 147.0 - 57
75-84 years 31 44.4 ± 30.7 35.0 0.0 137.0 - 31
85 years or older 2 30.5 ± 9.2 30.5 24.0 37.0 - 2

Sex vs V2: Duration of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 33.4 ± 13.8 33.0 0.0 147.0 3 735
Female 404 31.2 ± 12.4 31.0 0.0 147.0 2 406
Male 328 36.2 ± 14.9 35.0 0.0 139.0 1 329

Race vs V2: Duration of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 33.4 ± 13.8 33.0 0.0 147.0 3 735
White 303 33.8 ± 13.1 34.0 0.0 137.0 1 304
Black 407 33.2 ± 14.6 32.0 0.0 147.0 2 409
Other 22 33.1 ± 6.3 32.5 23.0 48.0 - 22