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Table 1 Sample population characteristics - means or percentages (standard error) in the United States a and Brazil b

From: Difference in adult food group intake by sex and age groups comparing Brazil and United States nationwide surveys

Characteristic UNITED STATES BRAZIL
20-39y 40-59y 60 + y 20-39y 40-59y 60 + y
(n = 1,751) (n = 1,722) (n = 1,947) (n = 13,175) (n = 8,893) (n = 4,322)
Women (%) 51.5 (1.4) 52.7 (1.3) 55.5 (1.1) 51.2 (0.5) 52.8 (0.6) 55.6 (0.9)
Age (y) 29.4 (0.3) 49.2 (0.2) 70.0 (0.3) 29.1 (0.1) 48.5 (0.1)* 69.7 (0.2)
Body mass index (kg/m2)c 28.0 (0.3) 29.2 (0.2) 28.8 (0.2) 24.8 (0.1)* 26.4 (0.1)* 26.3 (0.1)*
Daily energy intake (kJ/day) 9,471.3 (156.9) 9,192.2 (172.4) 7,308.2 (153.1) 8,372.6 (58.6)* 7,702.7 (69.0)* 6,860.5 (73.2)*
  1. aIncludes first day of intake, What We Eat in America, National Health and Nutrition Examination Survey 2007–2008.
  2. bIncludes first day of intake, Household Budget Survey, Individual Food Intake 2008–2009.
  3. *Statistically different at p <0.05.