Cleveland Family Study

/datasets/cfs/variables/iiqa /datasets/cfs/variables/iira

Lead II: Duration of the Q-wave

Units milliseconds
Type numeric

Visit vs Lead II: Duration of the Q-wave

N Mean StdDev Median Min Max Unknown Total
Visit 5 732 8.9 ± 10.9 0.0 0.0 123.0 3 735

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

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 8.9 ± 11.0 0.0 0.0 123.0 3 658
5-14 yrs old 63 10.7 ± 10.0 15.0 0.0 29.0 1 64
15-24 yrs old 112 12.9 ± 10.2 16.0 0.0 32.0 - 112
25-34 yrs old 62 9.7 ± 9.9 12.5 0.0 27.0 - 62
35-44 years 97 8.0 ± 9.7 0.0 0.0 28.0 1 98
45-54 years 147 8.9 ± 10.3 0.0 0.0 32.0 1 148
55-64 years 84 5.3 ± 8.7 0.0 0.0 28.0 - 84
65-74 years 57 5.5 ± 9.0 0.0 0.0 33.0 - 57
75-84 years 31 8.1 ± 23.2 0.0 0.0 123.0 - 31
85 years or older 2 6.0 ± 8.5 6.0 0.0 12.0 - 2

Sex vs Lead II: Duration of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 8.9 ± 10.9 0.0 0.0 123.0 3 735
Female 404 8.9 ± 11.2 0.0 0.0 123.0 2 406
Male 328 8.8 ± 10.5 0.0 0.0 37.0 1 329

Race vs Lead II: Duration of the Q-wave

Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 8.9 ± 10.9 0.0 0.0 123.0 3 735
White 303 10.7 ± 10.2 13.0 0.0 32.0 1 304
Black 407 7.4 ± 11.2 0.0 0.0 123.0 2 409
Other 22 10.8 ± 10.6 14.5 0.0 31.0 - 22