Race

Visit vs How many pipes (bowls) per day now
N Mean StdDev Median Min Max Unknown Total
Visit 5 6 0.0 ± 0.0 0.0 0.0 0.0 729 735
Participant's age (category) vs How many pipes (bowls) per day now
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 4 0.0 ± 0.0 0.0 0.0 0.0 654 658
5-14 yrs old - - - - - - 64 64
15-24 yrs old - - - - - - 112 112
25-34 yrs old - - - - - - 62 62
35-44 years - - - - - - 98 98
45-54 years 2 0.0 ± 0.0 0.0 0.0 0.0 146 148
55-64 years 1 0.0 - 0.0 0.0 0.0 83 84
65-74 years 1 0.0 - 0.0 0.0 0.0 56 57
75-84 years - - - - - - 31 31
85 years or older - - - - - - 2 2
Participant's sex vs How many pipes (bowls) per day now
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 6 0.0 ± 0.0 0.0 0.0 0.0 729 735
Female - - - - - - 406 406
Male 6 0.0 ± 0.0 0.0 0.0 0.0 323 329
Participant's race vs How many pipes (bowls) per day now
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 6 0.0 ± 0.0 0.0 0.0 0.0 729 735
White 3 0.0 ± 0.0 0.0 0.0 0.0 301 304
Black 3 0.0 ± 0.0 0.0 0.0 0.0 406 409
More than one race - - - - - - 22 22