Reasons for not using smoking cessation aids

BMC Public Health

Table 2 Logistic^a and linear^b regression to predict reasons for not using smoking cessation aids from demographic, smoking behaviour, motivational, and health-related variables

Prediction variables	Scale "Social and environmental barriers" OR (CI 95%)		Scale "SCA unnecessary" β-weight
	univariate	multivariable	univariate	multivariable
demographic variables
gender
male^c
female	.559 (.371–.843)	.620 (.376–1.020)	-.019	-^d
age	1.004 (.989–1.019)	-	-.065	-
educational level
< 10 years^c
= 10 years	.382 (.219–.668)	.500 (.267–.936)	-.013
> 10 years	.220 (.111–.434)	.297 (.139–.632)	-.012	-
marital status
married/living with a partner^c
not married/not living with a partner	.783 (.486–1.262)	-	-.019	-
smoking behaviour variables
cigarettes per day	1.048 (1.015–1.082)	1.015 (.969–1.063)	.071	-
FTND-Score^e	1.274 (1.098–1.477)	1.206 (.992–1.466)	.041	-
age at onset
< 16 years^c
16–18 years	1.219 (.758–1.959)		.012
> 18 years	1.091 (.613–1.942)	-	-.070	-
quit attempts within the last 12 months
0^c
1	1.379 (.780–2.438)		.011
2–5	1.528 (.852–2.742)		.057
>5	1.051 (.389–2.839)	-	.016	-
smoking intensity	1.012 (1.003–1.021)	1.001 (.990–1.013)	.076	-
motivational variables
intention to quit within the next six months
no^c
yes	1.583 (1.013–2.473)	2.008 (1.207–3.338)	.121**	.113**
pros of non-smoking	1.148 (.957–1.376)	-	.078	-
self-efficacy	.885 (.696–1.125)	-	.063	-
health-related variables
mental health	.927 (.684–1.257)	-	-.083*	-.073
general health	.989 (.976–1.001)	-	.022	-

All analyses were adjusted for study membership (population-based vs. general practice patient sample) as well as study group membership (intervention vs. control condition).
^a Scale „Social and environmental barriers", due to substantial non-normality the scale was dichotomised using 0 = no agreement, 1 = at least minimal agreement
^b Scale "SCA unnecessary"
^c Reference category
^d Not sufficient for multivariable analysis
^e Because cigarettes per day were used as separate predictor, the FTND score was computed without cigarettes per day to avoid multi-collinearity
* p < .05; ** p < .01

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