Cleveland Family Study

/datasets/cfs/variables/v4ppa /datasets/cfs/variables/v4qd

V4: Absolute amplitude of the Q-wave

Units millimeters
Type numeric

Visit vs V4: Absolute amplitude of the Q-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 19.0 ± 51.6 0.0 0.0 483.0 3 735

Age at time of visit vs V4: Absolute amplitude of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 19.3 ± 52.2 0.0 0.0 483.0 3 658
5-14 yrs old 63 48.0 ± 82.7 0.0 0.0 415.0 1 64
15-24 yrs old 112 36.7 ± 73.4 0.0 0.0 454.0 - 112
25-34 yrs old 62 20.6 ± 67.2 0.0 0.0 483.0 - 62
35-44 years 97 9.7 ± 29.8 0.0 0.0 175.0 1 98
45-54 years 147 10.9 ± 29.9 0.0 0.0 151.0 1 148
55-64 years 84 12.2 ± 33.2 0.0 0.0 161.0 - 84
65-74 years 57 6.8 ± 21.5 0.0 0.0 126.0 - 57
75-84 years 31 9.7 ± 32.0 0.0 0.0 161.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs V4: Absolute amplitude of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 19.0 ± 51.6 0.0 0.0 483.0 3 735
Female 404 16.4 ± 43.3 0.0 0.0 483.0 2 406
Male 328 22.1 ± 60.2 0.0 0.0 454.0 1 329

Race vs V4: Absolute amplitude of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 19.0 ± 51.6 0.0 0.0 483.0 3 735
White 303 15.3 ± 35.4 0.0 0.0 219.0 1 304
Black 407 20.4 ± 57.0 0.0 0.0 483.0 2 409
Other 22 44.0 ± 103.8 0.0 0.0 454.0 - 22