Table 4.
Absolute and percentage differences in nutrient intake and limits of agreement (LoA) for assessment instruments and biomarker (n = 89)
| Differences in nutrient intake | % LoAa | |||
|---|---|---|---|---|
| Absolute (g) | Percentages (%)a | |||
| Mean (95%CI) | Median (95%Cl) | Mean (95%CI) | ||
| Protein | ||||
| myfood24—biomarker | − 3.86 (− 10.25, 2.53) | − 7.89 (− 13.50, − 1.18) | − 10% (− 16%, − 4%) | − 53% to + 72% |
| WDR -biomarker | − 4.30 (− 8.69, 0.10) | − 5.15 (− 8.80, − 0.10) | − 8% (− 13%, − 3%) | − 46% to + 56% |
| myfood24—WDR | 0.44 (− 5.25, 6.13) | − 1.27 (− 6.29, 2.24) | − 2% (− 8%, + 3%) | − 43% to + 67% |
| Potassium | ||||
| myfood24—biomarker | − 0.24 (− 0.53, 0.06) | − 0.27 (− 0.48, 0.12) | − 8% (− 15%, 0%) | − 57% to + 98% |
| WDR -biomarker | 0.04 (− 0.24, 0.32) | 0.06 (− 0.17, 0.34) | + 2% (− 5%, + 10%) | − 49% to + 103% |
| myfood24—WDR | − 0.28 (− 0.45, − 0.11) | − 0.23 (− 0.36, − 0.15) | − 10% (− 14%, − 5%) | − 45% to + 47% |
LoA Limits of agreement, WDR Weighed Dietary Record
a% difference in means and limits of agreement relate to geometric means of intake ratios because of log transformation and are presented as % differences