Cleveland Family Study

/datasets/cfs/variables/v2rpa /datasets/cfs/variables/v2sa

V2: Duration of the secondary R-wave

Units milliseconds
Type numeric

Visit vs V2: Duration of the secondary R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 2.2 ± 8.3 0.0 0.0 68.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 2.3 ± 8.5 0.0 0.0 68.0 3 658
5-14 yrs old 63 2.7 ± 8.6 0.0 0.0 39.0 1 64
15-24 yrs old 112 3.2 ± 9.5 0.0 0.0 41.0 - 112
25-34 yrs old 62 2.9 ± 11.5 0.0 0.0 68.0 - 62
35-44 years 97 1.2 ± 5.0 0.0 0.0 28.0 1 98
45-54 years 147 1.1 ± 5.3 0.0 0.0 40.0 1 148
55-64 years 84 2.6 ± 8.0 0.0 0.0 34.0 - 84
65-74 years 57 3.0 ± 10.9 0.0 0.0 65.0 - 57
75-84 years 31 3.2 ± 13.2 0.0 0.0 66.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs V2: Duration of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 2.2 ± 8.3 0.0 0.0 68.0 3 735
Female 404 2.1 ± 7.6 0.0 0.0 66.0 2 406
Male 328 2.3 ± 9.1 0.0 0.0 68.0 1 329

Race vs V2: Duration of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 2.2 ± 8.3 0.0 0.0 68.0 3 735
White 303 3.3 ± 10.2 0.0 0.0 66.0 1 304
Black 407 1.5 ± 6.7 0.0 0.0 68.0 2 409
Other 22 1.1 ± 5.3 0.0 0.0 25.0 - 22