Table 3.

Factors related to non-participation in a tobacco prevention programme, analysed by multiple logistic regression and expressed as ORs with 95% CI

	Non-participation
	OR	95% CI
Male sex	1.81	1.20 to 2.74
Smoking mother	2.05	1.09 to 3.84
Single parent household	1.78	0.90 to 3.51
Participation in sports	0.55	0.34 to 0.89
Parental socioeconomic status
Professionals	1.00
Self-employed	1.06	0.43 to 2.63
Intermediate non-manual	1.56	0.90 to 2.71
Assistant non-manual	0.85	0.42 to 1.72
Manual workers industry	1.37	0.70 to 2.70
Manual workers service	2.98	1.32 to 6.74
Unemployed	2.87	0.25 to 33.38