Table 1.

Profile of the study sample

Sex	Male	1500 (44.3%)
	Female	1884 (55.7%)
Age	16–34	957 (28.3%)
	35–54	1214 (35.9%)
	55+	1213 (35.8%)
Education	High education	748 (22.1%)
	Middle education	1304 (38.5%)
	Lower education	1332 (39.4)
Income	Average or higher than national average	1046 (30.9%)
	Lower than average	2338 (69.1%)
Smoking	Smoker	817 (24.1%)
	Non smoker	2567 (75.9%)