Table 1.

General characteristics of the participants

VariableSmokersNonsmokers
No. participants2010
Age (mean ± SD, y)36.1 ± 8.130.3 ± 8.7
Gender
    Females44
    Males166
No. consumed cigarettes/d (mean ± SD)34 ± 11.9
Duration of smoking (mean ± SD, y)12.2 ± 4.0
Body mass index (kg/m2, mean ± SD)
    Males24.5 ± 2.026.0 ± 2.3
    Females22.5 ± 2.521.5 ± 3.0