TABLE 1.

Mean sodium intake and regression coefficients of associations with demographic and socioeconomic characteristics and practices related to salt consumption in an adolescent population in Campinas, San Paulo, Brazil.¹

	Bivariate model (g/d)				Multivariate model (g/d)
	n	Mean2	95% CI	P value	Stage 1		Stage 2		Stage3
Variables					R 3	P value	R 3	P value	R 4	P value
Sex
Male	458	3.89	3.71, 4.06
Female	443	3.11	2.96, 3.25	<0.0001	−0.79	<0.0001	−0.79	<0.0001	−0.40	<0.0001
Race/skin color
White	492	3.43	3.25, 3.60
Black/brown	391	3.59	3.41, 3.78	0.18	0.14	0.25	—	—	—	—
Schooling of head of family
0–8 y	475	3.48	3.33, 3.63
9–11 y	266	3.66	3.46, 3.86	0.87	—	—	—	—	—	—
≥12 y	147	3.29	2.99, 3.57	0.49	—	—	—	—	—	—
Income per capita
≤BMMW a	545	3.5	3.35, 3.66
1–2 x BMMW	275	3.55	3.34, 3.77	0.70	—	—	—	—	—	—
>2 x BMMW	79	3.3	2.87, 3.72	0.34	—	—	—	—	—	—
Location of meals
At home	575	3.44	3.29, 3.59
Outside of home	219	3.50	3.25, 3.75	0.059	—	—	0.19	0.012	0.12	0.038
Reads sodium content on labels
No	250	3.61	3.42, 3.80
Yes	30	3.42	2.44, 4.44	0.72	—	—	—	—	—	—
Concerned about salt intake
No	590	3.54	3.39, 3.68
Yes	310	3.43	3.21, 3.65	0.39	—	—	—	—	—	—
Self-rated salt intake
Inadequate	132	3.57	3.30, 3.83
Adequate	765	3.49	3.34, 3.63	0.59	—	—	—	—	—	—

¹BMMW, Brazilian monthly minimum wage.

²Mean sodium intake (in grams) based on a 1-d 24-h dietary recall.

³Regression coefficient.

⁴Regression coefficient adjusted for total energy.