Table 2.
Correlation and agreement for energy and selected nutrient intake from mean 3-day image-based dietary records in the Diet Bytes and Baby Bumps study (n=25 participants) analyzed by the Selected Nutrient and Diet Quality (SNaQ) tool and FoodWorks (FW) nutrient analysis software.
| Nutrient | Method | Input, median (IQRa) | ρ (P value) | n (%) <EARb | n (%) ≥EAR to <RDIc | n (%) ≥RDI | Cohen kappa (P value) | |
| Intake from food and supplements |
|
|
|
|
|
|||
|
|
Energy (kJ/day) | SNaQ | 8418.33 (7755.83-10,004.17) | .898 (<.001) | N/Ad |
|
|
.031e (.67) |
|
|
|
FW | 7738.89 (6329.94-8995.05) |
|
|
|
|
|
|
|
Iron (mg/day) | SNaQ | 11.30 (8.93-15.08) | .812 (<.001) | 21(84) | 0 (0) | 4 (16) | .533 (<.001) |
|
|
|
FW | 13.54 (10.75-21.47) |
|
19 (76) | 3 (12) | 3 (12) |
|
|
|
Calcium (mg/day) | SNaQ | 877.36 (653.74-1181.60) | .791 (<.001) | 12 (48) | 4 (16) | 9 (36) | .488 (.001) |
|
|
|
FW | 831.01 (672.39-1000.89) |
|
13 (52) | 6 (24) | 6 (24) |
|
|
|
Folate, total DFEf (µg/day) | SNaQ | 851.90 (225.15-1156.15) | .893 (<.001) | 11 (44) | 1 (4) | 13 (52) | .559 (.001) |
|
|
|
FW | 820.20 (393.53-1383.00) |
|
8 (32) | 2 (8) | 15 (60) |
|
|
|
Iodine (µg/day) | SNaQ | 167.00 (93.52-311.28) | .955 (<.001) | 11 (44) | 4 (16) | 10 (40) | .803 (<.001) |
|
|
|
FW | 171.42 (92.58-300.20) |
|
12 (48) | 3 (12) | 10 (40) |
|
|
|
Zinc (mg/day) | SNaQ | 13.09 (10.46-19.56) | .905 (<.001) | 3 (12) | 4 (16) | 18 (72) | .741 (<.001) |
|
|
|
FW | 14.66 (10.24-21.24) |
|
3 (12) | 5 (20) | 17 (68) |
|
| Intake from food only, supplements excluded |
|
|
|
|
|
|||
|
|
Energy (kJ/day) | SNaQ | 8418.33 (7755.83-10,004.17) | .898 (.000) | N/A |
|
|
.031e (.67) |
|
|
|
FW | 7738.89 (6329.94-8995.05) |
|
|
|
|
|
|
|
Iron (mg/day) | SNaQ | 9.50 (7.70-10.85) | .510 (.009) | 25 (100) | 0 (0) | 0 (0) | Constants (no statistics computed) |
|
|
|
FW | 11.78 (8.53, 13.73) |
|
25 (100) | 0 (0) | 0 (0) | |
|
|
Calcium (mg/day) | SNaQ | 809.90 (653.75-1181.70) | .888 (<.001) | 14 (56) | 2 (8) | 9 (36) | .554 (<.001) |
|
|
|
FW | 736.61 (663.19-927.37) |
|
17 (68) | 3 (12) | 5 (20) |
|
|
|
Folate, total DFE (µg/day) | SNaQ | 319.00 (240.25-433.35) | .600 (.002) | 21 (84) | 4 (16) | 0 (0) | -.068 (.52) |
|
|
|
FW | 409.79 (259.74-642.22) |
|
16 (64) | 2 (8) | 7 (28) |
|
|
|
Iodine (µg/day) | SNaQ | 99.00 (79.80-139.05) | .850 (<.001) | 22 (88) | 2 (8) | 1 (4) | .632 (<.001) |
|
|
|
FW | 104.25 (86.46-130.95) |
|
22 (88) | 2 (8) | 1 (4) |
|
|
|
Zinc (mg/day) | SNaQ | 10.60 (8.40-13.10) | .745 (<.001) | 7 (28) | 6 (24) | 12 (48) | .572 (<.001) |
|
|
|
FW | 10.63 (8.89-13.47) |
|
6 (24) | 9 (36) | 10 (40) |
|
aIQR: interquartile range (25th-75th percentiles).
bEAR: estimated average requirement. EAR is a nutrient level estimated to meet the requirements of 50% of the healthy individuals in a life stage or gender group, per day (EARs for nutrients as follows: iron 22 mg, calcium 840 mg, folate 520 µg, iodine 160 µg, zinc 9 mg) [10].
cRDI: recommended dietary intake. RDI is the average dietary intake level sufficient to meet nutrient requirements of 97% to 98% of healthy individuals in a life stage or gender group, per day (RDIs for nutrients as follows: iron 27 mg, calcium 1000 mg, folate 600 µg, iodine 220 µg, zinc 11 mg) [10].
dN/A: not applicable.
eKappa for energy intake in categories of 1000 kJ.
fDFE: dietary folate equivalents.