Table 1

Characteristics of current smokers at baseline in the Ontario Tobacco Survey who had made at least one quit attempt (n=1277)

Characteristic	n	Per cent
Sex
Female	732	57.3
Male	545	42.7
Age
18–24	137	10.7
25–34	218	17.1
35–44	291	22.8
45–54	340	26.6
55–64	185	14.5
65+	106	8.3
Marital status
Married	721	56.5
Single	556	43.5
Education
Less than high school	192	15.0
High school or more	1085	85.0
Children at home
No	746	58.4
Yes	531	41.6
Ever used pharmacotherapy
No	530	41.5
Yes	747	58.5
Ever used behavioural therapy
No	846	66.2
Yes	431	33.8
Number of previous quit attempts at baseline
0	97	7.6
1	250	19.6
2	244	19.1
3	211	16.5
4	123	9.6
5 or more	352	27.6
Frequency of smoking at baseline
Daily smoker (every day)	1092	85.5
Occasional smoker (less than daily)	185	14.5
Heaviness of smoking index
Low	728	57.0
Medium/high	549	43.0

Heaviness of smoking index calculated from daily cigarette consumption and the time to first cigarette after waking (scores of 0–2 were classified as low, 3–6 as high).19