Table 1

Characteristics of adolescents from 12 to 19 years of age enrolled in SOFT study, in southern Brazil [N (%) or mean ± SD]
Total Boys Girls P value*
N = 568 N = 281 N = 287
Age (years) 0.8
12-14 199 (35.0) 102 (36.2) 97 (33.8)
15-17 232 (40.8) 111 (39.5) 121 (42.2)
18-19 137 (24.1) 68 (24.2) 69 (24.0)
White skin color 284 (50.0) 132 (47.0) 152 (53.0) 0.15
Education (years) 7.5 ±2.5 7.5 ±2.6 7.6 ±2.5 0.8
Current smokers 57 (10.0) 23 (8.2) 34 (11.8) 0.15
Alcohol consumption in the last 30 days (g/week) 0.008
No 357 (62.9) 184 (65.5) 173 (60.3)
< 12.7 69 (12.1) 22 (7.8) 47 (16.4)
≥ 12.7 142 (25.0) 75 (26.7) 67 (23.3)
Physical activity <0.001
Mild 139 (24.5) 57 (20.3) 82 (28.6)
Moderate 269 (47.4) 115 (40.9) 154 (53.7)
Vigorous 160 (28.2) 109 (38.8) 51 (17.8)
Body mass index** 0.001
Underweight 45 (7.9) 11 (3.9) 34 (11.8)
Normal 392 (69.0) 196 (69.8) 196 (68.3)
Overweight 131 (23.1) 74 (26.3) 57 (19.9)

* Pearson chi-squared test.

Grams of ethanol per week.

** BMI categorized as proposed by Cole et al.

Rieth et al.

Rieth et al. Nutrition Journal 2012 11:95   doi:10.1186/1475-2891-11-95

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