Prevalence and factors associated with difficulty and intention to quit smoking in Switzerland

BMC Public Health

Table 3 multivariate analysis of the factors associated with difficulty, intention and motivation to quit smoking

	Difficulty	Intention	Preparation ^a
Gender
Women	1 (ref.)	-	-
Men	0.51 [0.35 - 0.74]	-	-
Age group
[35-44]	-	1 (ref.)	-
[45-54]	-	0.98 [0.71 - 1.37]	-
[55-64]	-	0.73 [0.52 - 1.02]	-
[65+]	-	0.54 [0.34 - 0.85]	-
Personal history of lung disease
No	-	-	1 (ref.)
Yes	-	-	2.15 [1.30 - 3.57]
Non-cigarette smoker
No	-	1 (ref.)	-
Yes	-	0.51 [0.28 - 0.92]	-
Nicotine dependence ^b
Low (0-1)	1 (ref.)	1 (ref.)	1 (ref.)
Medium (2-4)	8.67 [5.61 - 13.4]	1.75 [1.32 - 2.32]	0.62 [0.43 - 0.89]
High (5-6)	82.3 [11.3 -597.0]	2.32 [1.49 - 3.59]	0.53 [0.30 - 0.95]
Number of quitting attempts
None	1 (ref.)	1 (ref.)	1 (ref.)
1 to 5	2.03 [1.36 - 3.02]	2.02 [1.53 - 2.66]	2.22 [1.42 - 3.47]
6+	3.14 [1.75 - 5.63]	4.39 [2.79 - 6.91]	5.18 [3.17 - 8.47]

Results are expressed as multivariate-adjusted odds ratio and [95% confidence interval]. ^a odds ratios for preparation stage vs. precontemplation + contemplation; ^b assessed by the heaviness of smoking index. Multivariate statistical analysis by stepwise logistic regression: -, not retained in the model. Other variables initially introduced in the model but not retained: marital status, education, leisure-time physical activity, alcohol drinker, personal history of coronary heart disease and family history of cardiovascular or lung disease.

ISSN: 1471-2458