Table 1 |
|||
|
The amount and duration of smoking in acne and control patients |
|||
|
Smoking habit |
Acne patients (12) |
Control patients (27) |
|
|
|
|||
|
Amount |
1 cigarette per week |
2 |
5 |
|
1–6 cigarettes per week |
2 |
9 |
|
|
> 6 cigarettes per week |
8 |
12 |
|
|
Not mentioned |
0 |
1 |
|
|
|
|||
|
Duration |
< 3 months |
1 |
2 |
|
3 months – 3 years |
6 |
7 |
|
|
> 3 years |
5 |
16 |
|
|
Not mentioned |
0 |
2 |
|
|
|
|||
|
Firooz et al. BMC Dermatology 2005 5:2 doi:10.1186/1471-5945-5-2 |
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