Cleveland Family Study

/datasets/cfs/variables/v2ppa /datasets/cfs/variables/v2qd

V2: Absolute amplitude of the Q-wave

Units millimeters
Type numeric

Visit vs V2: Absolute amplitude of the Q-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 19.6 ± 140.6 0.0 0.0 1,909.0 3 735

Age at time of visit vs V2: Absolute amplitude of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 19.1 ± 138.6 0.0 0.0 1,909.0 3 658
5-14 yrs old 63 0.6 ± 4.9 0.0 0.0 39.0 1 64
15-24 yrs old 112 0.5 ± 3.9 0.0 0.0 34.0 - 112
25-34 yrs old 62 2.4 ± 14.4 0.0 0.0 107.0 - 62
35-44 years 97 6.2 ± 53.7 0.0 0.0 527.0 1 98
45-54 years 147 40.6 ± 202.3 0.0 0.0 1,909.0 1 148
55-64 years 84 0.2 ± 2.1 0.0 0.0 19.0 - 84
65-74 years 57 52.5 ± 207.7 0.0 0.0 1,225.0 - 57
75-84 years 31 86.8 ± 340.4 0.0 0.0 1,855.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs V2: Absolute amplitude of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 19.6 ± 140.6 0.0 0.0 1,909.0 3 735
Female 404 21.1 ± 160.5 0.0 0.0 1,909.0 2 406
Male 328 17.8 ± 111.4 0.0 0.0 1,225.0 1 329

Race vs V2: Absolute amplitude of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 19.6 ± 140.6 0.0 0.0 1,909.0 3 735
White 303 29.5 ± 185.0 0.0 0.0 1,909.0 1 304
Black 407 13.3 ± 99.9 0.0 0.0 1,303.0 2 409
Other 22 0.0 ± 0.0 0.0 0.0 0.0 - 22