Cleveland Family Study

/datasets/cfs/variables/iiira /datasets/cfs/variables/iiirpa

Lead III: Duration of the R-wave

Units milliseconds
Type numeric

Visit vs Lead III: Duration of the R-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 40.6 ± 23.3 35.0 0.0 144.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 40.9 ± 23.3 36.0 0.0 144.0 3 658
5-14 yrs old 63 46.7 ± 18.9 48.0 12.0 88.0 1 64
15-24 yrs old 112 51.9 ± 20.2 55.0 15.0 100.0 - 112
25-34 yrs old 62 42.9 ± 22.6 43.0 0.0 96.0 - 62
35-44 years 97 37.2 ± 22.2 29.0 0.0 104.0 1 98
45-54 years 147 37.9 ± 22.4 31.0 0.0 100.0 1 148
55-64 years 84 37.9 ± 28.1 27.0 0.0 144.0 - 84
65-74 years 57 33.6 ± 22.9 27.0 0.0 121.0 - 57
75-84 years 31 30.7 ± 20.4 24.0 0.0 80.0 - 31
85 years or older 2 69.0 ± 32.5 69.0 46.0 92.0 - 2

Sex vs Lead III: Duration of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 40.6 ± 23.3 35.0 0.0 144.0 3 735
Female 404 40.6 ± 22.6 36.0 0.0 101.0 2 406
Male 328 40.8 ± 24.3 34.5 0.0 144.0 1 329

Race vs Lead III: Duration of the R-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 40.6 ± 23.3 35.0 0.0 144.0 3 735
White 303 41.3 ± 22.5 38.0 0.0 104.0 1 304
Black 407 39.6 ± 23.8 32.0 0.0 144.0 2 409
Other 22 51.2 ± 24.4 54.5 16.0 100.0 - 22