Table 1. Frequencies of maintenance of leisure-time physical activity and association with dimensions of social support. Estudo Pró-Saúde,a Rio de Janeiro, RJ, Southeastern Brazil, 1999-2001.

Social support (tertiles)	Maintenance of leisure-time physical activity
	Women						Men
	n	%	Unadjusted OR	95%CI	Fully-adjusted OR	95%CIb	n	%	Unadjusted OR	95%CI	Fully-adjusted OR	95%CIb
	Material
	Lower	192	52	1		1		157	60	1		1
Intermediate	248	77	1.33	0.9;1.9	1.21	0.7;1.9	239	64	1.07	0.7;1.6	1.31	0.8;2.2
Upper	195	52	1.01	0.7;1.5	0.81	0.5;1.3	243	61	1.00	0.7;1.5	1.09	0.6;1.9
Affective
Lower	192	52	1		1		179	60	1		1
Intermediate	127	34	0.81	0.5;1.3	0.66	0.4;1.1	122	59	1.16	0.7;1.9	1.24	0.7;2.2
Upper	316	85	1.30	0.9;1.9	1.32	0.8;2.7	342	64	1.08	0.7;1.6	1.05	0.7;1.7
Emotional/ Information
Lower	169	45	1		1		192	58	1		1
Intermediate	142	47	1.57	1.0;2.3	1.66	1.0;1.8	228	65	1.24	0.8;1.9	1.15	0.7;1.9
Upper	220	59	1.42	0.9;2.1	1.26	0.9;2.0	217	62	1.04	0.9;1.6	0.87	0.5;1.4
Positive social interaction
Lower	186	28	1		1		161	59	1		1
Intermediate	195	52	0.83	0.9;2.1	1.11	0.7;1.8	188	60	1.01	0.8;1.2	1.25	0.7;2.1
Upper	255	69	1.07	0.9;2.1	1.21	0.7;1.9	291	65	1.28	1.0;1.4	1.09	0.7;1.8

Note: Unadjusted and fully-adjusted odds ratios (OR) and respective 95% confidence intervals (95%CI) for the logistic regression models fitted using social support dimensions as the predictors of maintenance of leisure-time physical activity (reference group: individuals who were active in phase 1, but not in phase 2) (2-year follow-up).

n(%) = Number of observations and percentages of individuals physically active during their leisure time, according to each level of social support dimensions.

All statistically significant associations (p < 0.05) are in bold.

^a Faerstein E et al⁷ (2005).

^b Fully adjusted models: adjusted by age, education, per capita monthly income, tobacco and alcohol use, and morbidity.