Table 2

Mean and median of Ca:P ratio, nutrients, food groups in the habitual diet and obesity diagnostic parameters according to education level, per capita income and practice of regular physical activity of adults of DISANDNT I/JP (2008-2010)
Variables Educational level 1 Per capita income 2 Regular physical activity 3
≤ High school > High school < Median ≥ Median Yes No
Mean Median Mean Median p-value Mean Median Mean Median p-value Mean Median Mean Median p-value
Ca:P ratio (mg:mg) 0.57 0.56 0.63 0.64 0.0006 0.55 0.53 0.61 0.61 0.0001 0.63 0.64 0.57 0.56 0.0110
Calcium* (mg) 522.19 453.10 653.39 529.20 0.0006 496.70 426.20 607.47 556.80 0.0002 609.01 569.05 540.26 475.70 0.0149
Phosphorus* (mg) 897.75 840.60 1028.2 906.10 0.0371 887.24 820.80 967.94 910.25 0.0411 957.56 904.00 921.24 840.65 0.1929
Dairy products (servings)4 1.01 0.79 1.61 1.31 0.0001 0.91 0.74 1.38 1.10 0.0001 1.38 1.21 1.09 0.83 0.0033
Meats (servings)3 1.82 1.53 1.68 1.31 0.067 1.89 1.58 1.69 1.41 0.0994 1.66 1.47 1.82 1.51 0.2322
BMI (kg/m2) 26.16 25.54 25.59 25.04 0.2472 26.16 25.20 25.98 25.86 0.8582 26.09 25.89 26.01 25.30 0.8024
WC (cm) 84.99 84.00 84.55 83.00 0.5845 84.25 83.00 85.46 85.00 0.1554 85.45 84.70 84.73 83.40 0.4801
WHtR (cm:cm) 0.54 0.51 0.51 0.50 0.0126 0.53 0.53 0.53 0.53 0.8506 0.53 0.52 0.53 0.53 0.4870

1 ≤ high school, corresponding to 12 or fewer years of schooling and > high school, corresponding to more than 12 years of schooling; 2 median of per capita income R$ 325.00 or US$ 580.29; 3 at least 150 minutes of physical activity per week [34]; 4 food consumption - servings (BRASIL. Ministério da Saúde. Guia Alimentar para a população brasileira, 2006 [39]/USDA. U.S. Department of Agriculture. Dietary Guidelines for Americans, 2010) [40].

* Calcium and phosphorus - after adjustment for energy remained the same significant relationships.

Abbreviations: Ca:P ratio Calcium:phosphorus ratio, BMI Body mass index, WC Waist circumference, WHtR Waist-to-height ratio.

Pereira et al.

Pereira et al. Nutrition Journal 2013 12:90   doi:10.1186/1475-2891-12-90

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