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Table 8 The correlation between the frequency of the consumption of the specific food products depending on age and sex

From: The analysis of the degree of 10–13-year-old children’s nutrition, dietary habits and physical activity in the selected rural and urban areas of Silesian Province (Poland)

Body mass index (BMI)
Girls
  10 years old (n = 90) 11 years old (n = 71) 12 years old (n = 65) 13 years old (n = 32)
The consumption frequency of products:
Milk Spearman’s rho 0.11 0.17 − 0.05 0.12
significance 0.278 0.126 0.684 0.515
Water Spearman’s rho − 0.04 0.12 − 0.05 − 0.18
significance 0.734 0.301 0.662 0.308
Sweet drinks Spearman’s rho − 0.03 − 0.18 0.18 0.42
significance 0.756 0.119 0.141 0.021
Fish Spearman’s rho 0.01 0.13 − 0.16 0.14
significance 0.969 0.273 0.190 0.446
Brown bread Spearman’s rho − 0.28 − 0.20 − 0.23 − 0.23
significance 0.008 0.086 0.062 0.208
Meat Spearman’s rho − 0.25 0.12 0.15 0.40
significance 0.013 0.294 0.221 0.024
Salty snacks/sweets Spearman’s rho − 0.01 0.02 0.07 0.13
significance 0.900 0.848 0.574 0.469
Fruit/vegetables Spearman’s rho 0,13 0,02 − 0,18 0,14
significance 0,197 0,833 0,135 0,418
Boys
  10 years old (n = 96) 11 years old (n = 51) 12 years old (n = 65) 13 years old (n = 32)
The consumption frequency of products:
Milk Spearman’s rho 0.18 0.27 0.12 0.14
significance 0.068 0.044 0.309 0.426
Water Spearman’s rho 0.01 − 0.11 − 0.31 0.23
significance 0.941 0.424 0.009 0.203
Sweet drinks Spearman’s rho 0.18 − 0.07 0.07 0.15
significance 0.081 0.601 0.562 0.383
Fish Spearman’s rho − 0.05 0.11 0.07 − 0.02
significance 0.599 0.443 0.592 0.931
Brown bread Spearman’s rho − 0.05 0.00 − 0.21 − 0.33
significance 0.660 0.973 0.083 0.062
Meat Spearman’s rho − 0.01 0.09 0.15 − 0.14
significance 0.960 0.530 0.228 0.415
Salty snacks/sweets Spearman’s rho − 0.03 − 0.15 0.08 0.03
significance 0.743 0.278 0.514 0.847
Fruit/vegetables Spearman’s rho 0.20 0.19 0.05 − 0.10
significance 0.044 0.165 0.704 0.583