Cleveland Family Study

/datasets/cfs/variables/v1rpa /datasets/cfs/variables/v1sa

V1: Duration of the secondary R-wave

Units milliseconds
Type numeric

Visit vs V1: Duration of the secondary R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 3.8 ± 12.2 0.0 0.0 98.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 4.0 ± 12.7 0.0 0.0 98.0 3 658
5-14 yrs old 63 3.2 ± 9.7 0.0 0.0 50.0 1 64
15-24 yrs old 112 4.4 ± 11.1 0.0 0.0 51.0 - 112
25-34 yrs old 62 5.0 ± 14.2 0.0 0.0 68.0 - 62
35-44 years 97 1.7 ± 8.5 0.0 0.0 60.0 1 98
45-54 years 147 2.6 ± 9.7 0.0 0.0 55.0 1 148
55-64 years 84 5.3 ± 16.3 0.0 0.0 98.0 - 84
65-74 years 57 6.5 ± 15.0 0.0 0.0 68.0 - 57
75-84 years 31 9.2 ± 22.7 0.0 0.0 93.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs V1: Duration of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 3.8 ± 12.2 0.0 0.0 98.0 3 735
Female 404 2.9 ± 10.7 0.0 0.0 98.0 2 406
Male 328 5.0 ± 13.8 0.0 0.0 83.0 1 329

Race vs V1: Duration of the secondary R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 3.8 ± 12.2 0.0 0.0 98.0 3 735
White 303 6.2 ± 14.8 0.0 0.0 98.0 1 304
Black 407 2.2 ± 9.7 0.0 0.0 93.0 2 409
Other 22 1.2 ± 5.5 0.0 0.0 26.0 - 22