Histogram

Visit vs Average packs smoked/year
N Mean StdDev Median Min Max Unknown Total
Visit 5 728 8.2 ± 15.6 0.0 0.0 153.0 7 735
Participant's age (category) vs Average packs smoked/year
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 653 8.2 ± 15.6 0.0 0.0 153.0 5 658
5-14 yrs old 64 0.0 ± 0.0 0.0 0.0 0.0 - 64
15-24 yrs old 112 0.3 ± 0.8 0.0 0.0 3.8 - 112
25-34 yrs old 61 2.8 ± 5.6 0.0 0.0 35.4 1 62
35-44 years 98 8.9 ± 11.9 2.8 0.0 54.0 - 98
45-54 years 147 8.4 ± 13.2 0.0 0.0 59.8 1 148
55-64 years 82 17.5 ± 20.8 10.1 0.0 84.7 2 84
65-74 years 56 17.5 ± 20.5 7.2 0.0 68.0 1 57
75-84 years 31 19.8 ± 31.4 6.0 0.0 153.0 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2
Participant's sex vs Average packs smoked/year
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 728 8.2 ± 15.6 0.0 0.0 153.0 7 735
Female 403 5.8 ± 11.4 0.0 0.0 84.7 3 406
Male 325 11.2 ± 19.1 0.2 0.0 153.0 4 329
Participant's race vs Average packs smoked/year
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 728 8.2 ± 15.6 0.0 0.0 153.0 7 735
White 302 9.2 ± 18.1 0.0 0.0 153.0 2 304
Black 404 7.8 ± 13.7 0.0 0.0 74.8 5 409
More than one race 22 2.5 ± 6.3 0.0 0.0 26.3 - 22