Cleveland Family Study

Name

iqa

Label

Lead I: Absolute amplitude of the Q-wave

Units
millimeters
Type
numeric

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

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 34.1 ± 53.9 19.0 0.0 708.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 35.0 ± 55.2 19.0 0.0 708.0 3 658
5-14 yrs old 63 61.1 ± 110.7 19.0 0.0 708.0 1 64
15-24 yrs old 112 31.3 ± 55.1 0.0 0.0 434.0 - 112
25-34 yrs old 62 29.1 ± 33.3 21.5 0.0 136.0 - 62
35-44 years 97 39.5 ± 53.8 29.0 0.0 410.0 1 98
45-54 years 147 29.3 ± 36.3 19.0 0.0 151.0 1 148
55-64 years 84 31.9 ± 45.1 19.0 0.0 249.0 - 84
65-74 years 57 34.4 ± 40.7 24.0 0.0 161.0 - 57
75-84 years 31 30.2 ± 38.1 0.0 0.0 122.0 - 31
85 years or older 2 12.0 ± 17.0 12.0 0.0 24.0 - 2

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 34.1 ± 53.9 19.0 0.0 708.0 3 735
Female 404 32.7 ± 58.7 0.0 0.0 708.0 2 406
Male 328 35.8 ± 47.3 24.0 0.0 434.0 1 329

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 34.1 ± 53.9 19.0 0.0 708.0 3 735
White 303 38.4 ± 57.3 24.0 0.0 708.0 1 304
Black 407 30.2 ± 47.8 0.0 0.0 410.0 2 409
Other 22 46.6 ± 94.7 14.0 0.0 434.0 - 22