Cleveland Family Study

/datasets/cfs/variables/v1ra /datasets/cfs/variables/v1rpa

V1: Duration of the R-wave

Units milliseconds
Type numeric

Visit vs V1: Duration of the R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 25.3 ± 12.7 26.0 0.0 172.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 25.5 ± 13.1 26.0 0.0 172.0 3 658
5-14 yrs old 63 29.4 ± 7.8 29.0 0.0 47.0 1 64
15-24 yrs old 112 27.8 ± 8.2 29.0 0.0 49.0 - 112
25-34 yrs old 62 24.7 ± 8.7 26.0 0.0 39.0 - 62
35-44 years 97 26.1 ± 7.9 26.0 0.0 47.0 1 98
45-54 years 147 22.8 ± 9.9 24.0 0.0 44.0 1 148
55-64 years 84 23.2 ± 12.7 25.0 0.0 89.0 - 84
65-74 years 57 24.1 ± 17.1 24.0 0.0 115.0 - 57
75-84 years 31 30.9 ± 37.8 23.0 0.0 172.0 - 31
85 years or older 2 21.0 ± 2.8 21.0 19.0 23.0 - 2

Sex vs V1: Duration of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 25.3 ± 12.7 26.0 0.0 172.0 3 735
Female 404 24.2 ± 9.9 25.0 0.0 115.0 2 406
Male 328 26.8 ± 15.4 27.0 0.0 172.0 1 329

Race vs V1: Duration of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 25.3 ± 12.7 26.0 0.0 172.0 3 735
White 303 25.2 ± 12.6 26.0 0.0 172.0 1 304
Black 407 25.3 ± 13.1 25.0 0.0 148.0 2 409
Other 22 27.7 ± 6.8 27.5 17.0 49.0 - 22