Table 1 |
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|
Demographic information for the never, former, and current smokers |
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| Never |
Former |
Current |
|
|
|
|||
| n |
21 |
31 |
52 |
| Age |
32.3 (10.7) |
55.9 (14.7) |
48.6 (15.2) |
| Pack years |
34.0 (30.1) |
34.5 (34.2) |
|
| Months since quitting |
145.2 (162.82) |
||
|
|
|||
|
The mean and standard deviation (in parentheses) are reported. There is a significant age difference between the groups (P < 0.05 for all two-way group comparisons by t-test). |
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|
Beane et al. Genome Biology 2007 8:R201 doi:10.1186/gb-2007-8-9-r201 |
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