Table 1.

Baseline characteristics of participants who were vs. were not cigarette smokers at baseline

Baseline characteristics	Current cigarette smoker (at baseline) n=397	Current non- smoker (at baseline) n=2,951	p value
Age in years (mean ± SD)	71.2 ± 5.5	73.9 ± 6.7	< 0.001 a
Gender (women)	71 (17.9%)	1,844 (62.5%)	< 0.001 b
Educational level			< 0.001 b
Illiterate	25 (6.3%)	415 (14.1%)
Can read and write	175 (44.1%)	1,239 (42.0%)
Primary studies	109 (27.5%)	873 (29.6%)
Secondary studies	88 (22.2%)	424 (14.4%)
Drink-years	95.9 ± 76.2	50.3 ± 68.2	< 0.001 a
Depressive symptoms (“Do you suffer from depression?”)	81 (20.4%)	783 (26.6%)	0.008 b

NS = not significant.

^aIndependent samples t-test.

^bChi-square.