Cleveland Family Study

/datasets/cfs/variables/v2qa /datasets/cfs/variables/v2ra

V2: Duration of the Q-wave

Units milliseconds
Type numeric

Visit vs V2: Duration of the Q-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 2.6 ± 13.1 0.0 0.0 131.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 2.6 ± 13.0 0.0 0.0 131.0 3 658
5-14 yrs old 63 0.2 ± 1.5 0.0 0.0 12.0 1 64
15-24 yrs old 112 0.2 ± 1.8 0.0 0.0 14.0 - 112
25-34 yrs old 62 0.8 ± 4.6 0.0 0.0 29.0 - 62
35-44 years 97 0.8 ± 5.4 0.0 0.0 49.0 1 98
45-54 years 147 4.7 ± 17.3 0.0 0.0 88.0 1 148
55-64 years 84 0.2 ± 1.9 0.0 0.0 17.0 - 84
65-74 years 57 8.7 ± 26.1 0.0 0.0 131.0 - 57
75-84 years 31 10.5 ± 24.0 0.0 0.0 120.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2

Sex vs V2: Duration of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 2.6 ± 13.1 0.0 0.0 131.0 3 735
Female 404 2.3 ± 13.0 0.0 0.0 120.0 2 406
Male 328 2.9 ± 13.2 0.0 0.0 131.0 1 329

Race vs V2: Duration of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 2.6 ± 13.1 0.0 0.0 131.0 3 735
White 303 3.7 ± 15.8 0.0 0.0 120.0 1 304
Black 407 1.9 ± 10.9 0.0 0.0 131.0 2 409
Other 22 0.0 ± 0.0 0.0 0.0 0.0 - 22