Table 4.

Adjusted^a odds ratio for current smoking according to years of schooling (numeric variable) in the five sites of the PLATINO study

SITE	Men	Women
	Schooling (years)	Schooling (years)
SAO PAULO
Adjusted odds ratio (95%CI)	0.99 (0.95;1.03)	1.00 (0.96;1.05)
P (adjusted analysis)	0.56	0.94
SANTIAGO
Adjusted odds ratio (95%CI)	0.95 (0.90;0.99)	1.01 (0.98;1.05)
P (adjusted analysis)	0.02	0.53
MEXICO CITY
Adjusted odds ratio (95%CI)	0.99 (0.95;1.03)	1.05 (1.00;1.10)
P (adjusted analysis)	0.62	0.03
MONTEVIDEO
Adjusted odds ratio (95%CI)	0.94 (0.89;0.99)	1.01 (0.96;1.06)
P (adjusted analysis)	0.03	0.74
CARACAS
Adjusted odds ratio (95%CI)	0.96 (0.92;1.01)	0.97 (0.93;1.01)
P (adjusted analysis)	0.16	0.10

^a Adjusted for age (in three categories) using logistic regression taking the clustering of the sample into account.