packs_week smoke
Name
pack_years
Label
Cigarette smoking, number of pack-years
Calculation
pack_years = if smoker=0 then pack_years=0, else pack_years=packs_week*smoke_years
Units
pack years
Type
numeric
Study visit number vs Cigarette smoking, number of pack-years
N Mean StdDev Median Min Max Unknown Total
Visit 1 1,082 9.9 ± 18.2 0.0 0.0 200.0 41 1,123
Visit 2 736 9.7 ± 18.2 0.0 0.0 156.0 22 758
Visit 3 542 9.5 ± 17.3 0.0 0.0 125.0 24 566
Visit 4 116 7.3 ± 15.0 0.0 0.0 80.0 5 121
Visit 5 2 14.3 ± 20.2 14.3 0.0 28.6 - 2
Incident Outcomes Tracking - - - - - - - -
Sex of the participant vs Cigarette smoking, number of pack-years
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,082 9.9 ± 18.2 0.0 0.0 200.0 41 1,123
Male 567 11.2 ± 20.3 0.3 0.0 200.0 41 608
Female 515 8.5 ± 15.6 0.0 0.0 115.0 - 515
Sex of the participant vs Cigarette smoking, number of pack-years
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 736 9.7 ± 18.2 0.0 0.0 156.0 22 758
Male 384 11.6 ± 21.0 0.1 0.0 156.0 22 406
Female 352 7.7 ± 14.3 0.0 0.0 107.4 - 352
Sex of the participant vs Cigarette smoking, number of pack-years
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 542 9.5 ± 17.3 0.0 0.0 125.0 24 566
Male 282 10.9 ± 19.1 0.07 0.0 125.0 22 304
Female 260 7.9 ± 14.9 0.0 0.0 90.0 2 262
Sex of the participant vs Cigarette smoking, number of pack-years
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 116 7.3 ± 15.0 0.0 0.0 80.0 5 121
Male 63 8.1 ± 15.7 0.0 0.0 77.1 4 67
Female 53 6.5 ± 14.2 0.0 0.0 80.0 1 54
Sex of the participant vs Cigarette smoking, number of pack-years
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 14.3 ± 20.2 14.3 0.0 28.6 - 2
Male - - - - - - - -
Female 2 14.3 ± 20.2 14.3 0.0 28.6 - 2
Race of the participant vs Cigarette smoking, number of pack-years
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,082 9.9 ± 18.2 0.0 0.0 200.0 41 1,123
Asian 12 0.3 ± 0.6 0.0 0.0 2.1 - 12
Black 23 0.9 ± 2.0 0.0 0.0 8.6 - 23
Hispanic 13 9.1 ± 20.4 0.0 0.0 66.9 - 13
Native American 10 2.2 ± 5.7 0.0 0.0 18.0 - 10
White 1,024 10.3 ± 18.5 0.0 0.0 200.0 41 1,065
Race of the participant vs Cigarette smoking, number of pack-years
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 736 9.7 ± 18.2 0.0 0.0 156.0 22 758
Asian 4 0.1 ± 0.3 0.0 0.0 0.6 - 4
Black 8 2.0 ± 2.4 0.9 0.0 5.1 - 8
Hispanic 6 10.6 ± 17.2 0.0 0.0 40.0 - 6
Native American 6 4.5 ± 7.4 0.1 0.0 18.0 - 6
White 712 9.9 ± 18.4 0.0 0.0 156.0 22 734
Race of the participant vs Cigarette smoking, number of pack-years
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 542 9.5 ± 17.3 0.0 0.0 125.0 24 566
Asian 4 0.3 ± 0.6 0.0 0.0 1.1 - 4
Black 4 0.6 ± 1.1 0.0 0.0 2.3 - 4
Hispanic 5 17.0 ± 23.3 0.0 0.0 45.0 - 5
Native American 4 4.0 ± 8.0 0.07 0.0 16.0 - 4
White 525 9.6 ± 17.4 0.0 0.0 125.0 24 549
Race of the participant vs Cigarette smoking, number of pack-years
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 116 7.3 ± 15.0 0.0 0.0 80.0 5 121
Asian 3 0.0 ± 0.0 0.0 0.0 0.0 - 3
Black 1 2.0 - 2.0 2.0 2.0 - 1
Hispanic 2 0.0 ± 0.0 0.0 0.0 0.0 - 2
Native American 2 9.1 ± 12.6 9.1 0.1 18.0 - 2
White 108 7.7 ± 15.4 0.0 0.0 80.0 5 113
Race of the participant vs Cigarette smoking, number of pack-years
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 14.3 ± 20.2 14.3 0.0 28.6 - 2
Asian - - - - - - - -
Black - - - - - - - -
Hispanic - - - - - - - -
Native American - - - - - - - -
White 2 14.3 ± 20.2 14.3 0.0 28.6 - 2