Cleveland Family Study

/datasets/cfs/variables/iippa /datasets/cfs/variables/iiqd

Lead II: Absolute amplitude of the Q-wave

Units millimeters
Type numeric

Visit vs Lead II: Absolute amplitude of the Q-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 32.1 ± 52.3 0.0 0.0 419.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 32.0 ± 52.8 0.0 0.0 419.0 3 658
5-14 yrs old 63 43.5 ± 52.3 24.0 0.0 175.0 1 64
15-24 yrs old 112 54.9 ± 72.0 34.0 0.0 351.0 - 112
25-34 yrs old 62 37.1 ± 66.0 16.5 0.0 419.0 - 62
35-44 years 97 25.0 ± 38.9 0.0 0.0 166.0 1 98
45-54 years 147 30.4 ± 45.8 0.0 0.0 239.0 1 148
55-64 years 84 15.4 ± 34.0 0.0 0.0 209.0 - 84
65-74 years 57 14.2 ± 25.6 0.0 0.0 107.0 - 57
75-84 years 31 24.0 ± 61.3 0.0 0.0 234.0 - 31
85 years or older 2 14.5 ± 20.5 14.5 0.0 29.0 - 2

Sex vs Lead II: Absolute amplitude of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 32.1 ± 52.3 0.0 0.0 419.0 3 735
Female 404 32.5 ± 53.0 0.0 0.0 419.0 2 406
Male 328 31.5 ± 51.4 0.0 0.0 351.0 1 329

Race vs Lead II: Absolute amplitude of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 32.1 ± 52.3 0.0 0.0 419.0 3 735
White 303 37.1 ± 48.5 24.0 0.0 253.0 1 304
Black 407 28.3 ± 55.2 0.0 0.0 419.0 2 409
Other 22 33.1 ± 41.2 24.0 0.0 141.0 - 22