Cleveland Family Study

/datasets/cfs/variables/avfrpa /datasets/cfs/variables/avfsa

aVF lead: duration of the secondary R wave

Units milliseconds
Type numeric

Visit vs aVF lead: duration of the secondary R wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 4.2 ± 12.6 0.0 0.0 78.0 3 735

Age at time of visit vs aVF lead: duration of the secondary R wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 4.3 ± 12.8 0.0 0.0 78.0 3 658
5-14 yrs old 63 3.2 ± 11.7 0.0 0.0 58.0 1 64
15-24 yrs old 112 1.4 ± 8.1 0.0 0.0 72.0 - 112
25-34 yrs old 62 3.4 ± 12.7 0.0 0.0 64.0 - 62
35-44 years 97 4.2 ± 13.3 0.0 0.0 67.0 1 98
45-54 years 147 5.4 ± 13.7 0.0 0.0 78.0 1 148
55-64 years 84 8.1 ± 17.2 0.0 0.0 70.0 - 84
65-74 years 57 5.6 ± 11.9 0.0 0.0 55.0 - 57
75-84 years 31 2.5 ± 7.7 0.0 0.0 35.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs aVF lead: duration of the secondary R wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 4.2 ± 12.6 0.0 0.0 78.0 3 735
Female 404 2.7 ± 10.2 0.0 0.0 70.0 2 406
Male 328 6.0 ± 14.7 0.0 0.0 78.0 1 329

Race vs aVF lead: duration of the secondary R wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 4.2 ± 12.6 0.0 0.0 78.0 3 735
White 303 3.5 ± 11.3 0.0 0.0 78.0 1 304
Black 407 4.4 ± 12.8 0.0 0.0 70.0 2 409
Other 22 9.8 ± 20.7 0.0 0.0 72.0 - 22