Table 4 |
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|
Values for smoking characteristics by 5-HTTLPR genotype in ever smokers after excluding subjects with self-reported psychiatric disorders and/or alcohol dependence |
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|
Characteristic |
Mean (SD) |
P value |
|
|
|
|||
|
S/S+S/L |
L/L |
||
|
|
|||
|
Duration of smoking |
24.8 ± 11.0 |
28.0 ± 13.1 |
0.18 |
|
No. of cigarettes smoked daily |
18.0 ± 9.2 |
17.1 ± 8.5 |
0.73 |
|
No of pack/years |
22.9 ± 15.0 |
16.1 ± 17.4 |
0.73 |
|
Age of proceeding to regular smoking |
20.6 ± 4.3 |
20.5 ± 4.7 |
0.76 |
|
FTND score* |
5.1 ± 2.4 |
5.2 ± 2.0 |
0.79 |
|
Duration of the longest abstinence in quitting attempts* |
413.9 ± 1482.3 |
265.9 ± 446.4 |
0.29 |
|
|
|||
|
*only current daily smokers were analysed |
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|
Sieminska et al. BMC Medical Genetics 2008 9:76 doi:10.1186/1471-2350-9-76 |
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