Cleveland Family Study

/datasets/cfs/variables/v4ra /datasets/cfs/variables/v4rpa

V4: Duration of the R-wave

Units milliseconds
Type numeric

Visit vs V4: Duration of the R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 53.1 ± 13.4 51.0 27.0 115.0 3 735

Age at time of visit vs V4: Duration of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 53.0 ± 13.2 51.0 27.0 115.0 3 658
5-14 yrs old 63 49.7 ± 15.0 46.0 29.0 92.0 1 64
15-24 yrs old 112 54.3 ± 13.8 53.0 27.0 96.0 - 112
25-34 yrs old 62 53.3 ± 12.7 51.0 34.0 100.0 - 62
35-44 years 97 55.2 ± 11.3 52.0 30.0 96.0 1 98
45-54 years 147 53.3 ± 13.5 51.0 28.0 100.0 1 148
55-64 years 84 50.9 ± 10.9 49.0 30.0 88.0 - 84
65-74 years 57 52.0 ± 15.4 51.0 27.0 115.0 - 57
75-84 years 31 51.2 ± 11.9 50.0 31.0 79.0 - 31
85 years or older 2 69.0 ± 32.5 69.0 46.0 92.0 - 2

Sex vs V4: Duration of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 53.1 ± 13.4 51.0 27.0 115.0 3 735
Female 404 52.7 ± 13.2 51.0 27.0 104.0 2 406
Male 328 53.5 ± 13.6 51.0 27.0 115.0 1 329

Race vs V4: Duration of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 53.1 ± 13.4 51.0 27.0 115.0 3 735
White 303 52.0 ± 10.5 51.0 28.0 96.0 1 304
Black 407 53.4 ± 14.6 50.0 27.0 115.0 2 409
Other 22 62.0 ± 20.7 57.0 30.0 100.0 - 22