Cleveland Family Study

/datasets/cfs/variables/avlsa /datasets/cfs/variables/avlspa

aVL lead: Duration of the S wave (Left arm)

Units milliseconds
Type numeric

Visit vs aVL lead: Duration of the S wave (Left arm)

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 23.8 ± 22.5 22.0 0.0 101.0 3 735

Age at time of visit vs aVL lead: Duration of the S wave (Left arm)

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 24.1 ± 22.6 23.0 0.0 101.0 3 658
5-14 yrs old 63 27.1 ± 21.4 28.0 0.0 66.0 1 64
15-24 yrs old 112 29.7 ± 22.8 30.5 0.0 89.0 - 112
25-34 yrs old 62 25.0 ± 21.6 25.5 0.0 73.0 - 62
35-44 years 97 21.1 ± 21.9 17.0 0.0 85.0 1 98
45-54 years 147 22.7 ± 19.9 21.0 0.0 65.0 1 148
55-64 years 84 24.3 ± 23.9 25.5 0.0 101.0 - 84
65-74 years 57 20.2 ± 25.5 0.0 0.0 97.0 - 57
75-84 years 31 19.2 ± 28.8 0.0 0.0 91.0 - 31
85 years or older 2 11.5 ± 16.3 11.5 0.0 23.0 - 2

Sex vs aVL lead: Duration of the S wave (Left arm)

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 23.8 ± 22.5 22.0 0.0 101.0 3 735
Female 404 21.3 ± 21.9 16.0 0.0 101.0 2 406
Male 328 27.0 ± 22.8 26.0 0.0 95.0 1 329

Race vs aVL lead: Duration of the S wave (Left arm)

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 23.8 ± 22.5 22.0 0.0 101.0 3 735
White 303 26.9 ± 22.8 28.0 0.0 101.0 1 304
Black 407 21.1 ± 21.8 16.0 0.0 97.0 2 409
Other 22 32.2 ± 24.6 36.0 0.0 67.0 - 22