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. 2013 Jan 18;15(1):e13. doi: 10.2196/jmir.2217

Table 4.

Spearman rank correlations (ρ) and concordance correlation coefficients (ρc) between the participants’ composed meals using the two meal instruments (N=51).

Composed meal ρa ρc a
Reported intake b


Total energy, kJ 0.70 0.70

Total energy including drinks, kJ 0.79 0.72

Total meal, g 0.72 0.68

Total carbohydrates, kJ 0.59 0.76

Total carbohydrates, g 0.69 0.75

Total proteins, kJ 0.70 0.81

Total proteins, g 0.71 0.71

Total fat, kJ 0.58 0.66

Total fat, g 0.63 0.65
Food items (number of)


Potatoes 0.65 0.72

Meat, pork chops 0.69 0.70

Green peas, tbsp 0.65 0.47

Gravy, tbsp 0.48 0.50

Bread, slices 0.71 0.67

Cucumber, slices of 5 0.46 0.47

a All are statistically significant (P<.05).

b If not noted, reported intake is excluding intake from beverages.