Cleveland Family Study

/datasets/cfs/variables/v4qa /datasets/cfs/variables/v4ra

V4: Duration of the Q-wave

Units milliseconds
Type numeric

Visit vs V4: Duration of the Q-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 4.1 ± 7.9 0.0 0.0 36.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 4.2 ± 8.0 0.0 0.0 36.0 3 658
5-14 yrs old 63 8.5 ± 9.7 0.0 0.0 30.0 1 64
15-24 yrs old 112 7.1 ± 9.7 0.0 0.0 36.0 - 112
25-34 yrs old 62 3.8 ± 7.9 0.0 0.0 29.0 - 62
35-44 years 97 2.9 ± 6.8 0.0 0.0 28.0 1 98
45-54 years 147 3.1 ± 7.2 0.0 0.0 26.0 1 148
55-64 years 84 3.0 ± 6.8 0.0 0.0 24.0 - 84
65-74 years 57 2.5 ± 6.4 0.0 0.0 24.0 - 57
75-84 years 31 2.1 ± 5.6 0.0 0.0 20.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs V4: Duration of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 4.1 ± 7.9 0.0 0.0 36.0 3 735
Female 404 4.1 ± 7.8 0.0 0.0 30.0 2 406
Male 328 4.2 ± 8.0 0.0 0.0 36.0 1 329

Race vs V4: Duration of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 4.1 ± 7.9 0.0 0.0 36.0 3 735
White 303 4.3 ± 7.9 0.0 0.0 29.0 1 304
Black 407 3.8 ± 7.7 0.0 0.0 30.0 2 409
Other 22 7.5 ± 10.7 0.0 0.0 36.0 - 22