Table 3.
Daily energy and nutrient intakes recorded by CAF personnel using the weighed food record (wFR) 1 and those obtained from the measured food intake/food waste method 2 (reference method) (Means ± Standard Deviations (SD)).
| Nutrients † | Weighed Food Record 1 n = 9 | Measured Food Intake/Waste Method 2 | Correlation Coefficient (r) | Difference | Limits of Agreement (LOA) § | p-Value ** | |
|---|---|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean (SD) | Lower | Upper | |||
| Energy (kcal/day) | 2972 (900) | 3080 (902) | 0.993 * | −108 (117) | −338 | 122 | 0.32 |
| Carbohydrates (g/day) | 449 (145) | 469 (146) | 0.993 * | −19 (20) | −58 | 19 | 0.30 |
| Fat(g/day) | 87 (30) | 90 (30) | 0.992 * | −3.1 (4) | −11 | 5 | 0.38 |
| Saturated Fat (g/day) | 32 (11) | 33 (12) | 0.993 * | −0.96 (1.4) | −4 | 2 | 0.51 |
| Protein (g/day) | 101 (31) | 103 (30) | 0.996 * | −1.8 (3) | −8 | 4.2 | 0.65 |
| Vitamin A (μg/day) | 7 (8) | 9 (8) | 0.904 * | −1.8 (3.7) | −9.1 | 5.5 | 0.09 |
| Vitamin C (mg/day) | 300 (201) | 307 (201) | 0.994 * | −6.7 (23) | −52 | 39 | 0.80 |
| Calcium (mg/day) | 619 (297) | 655 (297) | 0.984 * | −36 (59) | −152 | 79 | 0.37 |
| Iron (mg/day) | 22 (9) | 22 (9) | 0.995 * | −0.6 (0.96) | −2.5 | 1.3 | 0.60 |
| Sodium (mg/day) | 4640 (1228) | 4759 (1256) | 0.987 * | −119 (212) | −535 | 297 | 0.48 |
* p ≤ 0.05; ** p-value is the significance level for differences between two methods. § Lower and upper limits of agreement (LOA) (mean difference ± 1.96 SD). † Energy and nutrient intake data examined by Multiple Regression and differences estimated by Repeated Measures Linear Mixed Models. 1 Weighed Food Record (wFR); participants using the wFR method were asked to weigh and record each consumed food and beverage item on a paper-based self-report form. 2 Measured Food Intake/Waste Method; all consumed and/or non-/partially consumed food and beverage items from the military ration packs were weighed and recorded for each participant.