Table 5.
Misreporting within total population per physical activity level cut-offs.
| Age group (years) | EI: BMR | Males | EI: BMR | Females | ||||
|---|---|---|---|---|---|---|---|---|
| Plausible | Below cut-off value 1.1 | % misreporting | Plausible | Below cut-off value 1.1 | % misreporting | |||
| Total | 1.14 | Plausible | 680 (38.8%) | −28.68 | 1.17 | Plausible | 677 (37.5%) | −26.55 |
| 1.5–3 | 1.58 | Plausible | 3 (5.7%) | 12.49 | 1.30 | Plausible | 9 (17.4%) | −7.08 |
| 4–10 | 1.82 | Plausible | 10 (6.5%) | 15.39 | 1.31 | Plausible | 24 (15.6%) | −16.47 |
| 11–14 | 1.14 | Plausible | 42 (46.5%) | −34.95 | 1.18 | Plausible | 29 (37.2%) | −32.44 |
| 15–18 | 1.05 | Implausible | 41 (54.0%) | −40.17 | 1.09 | Plausible | 37 (45.8%) | −37.60 |
| 19–64 | 1.16 | Plausible | 461 (43.0%) | −28.85 | 1.16 | Plausible | 462 (42.7%) | −29.00 |
| 65–74 | 1.16 | Plausible | 75 (40.0%) | −28.83 | 1.17 | Plausible | 80 (37.7%) | −28.11 |
| 75 + | 1.11 | Plausible | 47 (42.6%) | −31.81 | 1.20 | Plausible | 36 (24.7%) | −26.33 |
All data presented as median. EI: BMR = ratio of reported energy intake (EI) to estimated Basal metabolic rate (BMR), used to assess dietary reporting plausibility. A cut-off value of <1.1 (based on the Goldberg method) was used to indicate under-reporting. Estimated energy requirements were calculated as BMR x physical activity level (PAL), using the age appropriate BMR equations and assumed PAL values. Physical activity level set for each age category: 0–3 y, 1.40; 3–10 y, 1.58; 10–18 y, 1.75; 18+, 1.63. Percentage misreporting (% misreporting) reflects the median percentage difference between reported energy intake (EI) and estimated energy requirements (EER) calculated as: (Ei-EER)/EER × 100. Negative values indicate under-reporting of energy intake.