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- Waling, Maria, 1981-, et al.
(författare)
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Energy intake of Swedish overweight and obese children is underestimated using a diet history interview
- 2009
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Ingår i: Journal of Nutrition. - Bethesda : American Society for nutrition. - 0022-3166 .- 1541-6100. ; 139:3, s. 522-527
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Tidskriftsartikel (refereegranskat)abstract
- Estimating energy intake (EI) of a child by using a diet history interview (DHI) method may be a challenge because of difficulties for the child to remember what has been eaten as well as to report portion sizes. The aim of this research was to validate reported EI from a DHI in children classified as overweight or obese by comparing the reported EI to total energy expenditure (TEE) measured by two objective measures. Eighty-five 10.5 ± 1.1 y old overweight and obese children, with help from one or two parents, reported their EI two weeks retrospectively in a DHI. Reported EI was compared with TEE, as measured by SenseWear Armaband (n=85) and the doubly-labelled water (DLW) method (n=21), during the same period as the DHI. Reported EI was under-estimated by 14 % when validated against both the armband and DLW method. Under-estimation did not differ between boys and girls. However, the EI of obese children was under-estimated by 22 %, which is twice the rate as for the overweight children (95% CI: 0.55, 3.08). Under-estimated EI was negatively correlated with body mass index (BMI) (r=-0.38, P= <0.01) as well as age (r=-0.21, P=0.05). EI is under-estimated to a higher extent among children with higher BMI and higher age when using a DHI method. The findings show the importance of validating dietary intake of children in general and in overweight and obese children in particular.
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| 2. |
- Waling, Maria, 1981-, et al.
(författare)
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Validation of reported energy intake in overweight and obese children by using SenseWear Armband
- 2009
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Ingår i: The 7<sup>th</sup> International Conference in Diet and Activity Methods. - Washington DC.
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Konferensbidrag (refereegranskat)abstract
- The aim of was to assess the validity of reported energy intake (EI) in overweight and obese children participating in a diet history interview (DHI). The validation was made by comparison with total energy expenditure (TEE) measured with a portable device called SenseWear Pro2 Armband (SWA) version 5.1, which measures acceleration and body heat in free-living conditions. In total, 85 subjects (41 girls, 44 boys) aged 8-12 years who were overweight or obese according to age and sex specific body mass index ≥25 kg/m2 participated. The children were interviewed together with their parent/s about food intake during the preceding two weeks. Portion sizes were described with the help of household measurements and food-portion photographs. The reported food intake was entered into the dietary analysis program Dietist XP version 3.0 to calculate the EI. TEE was measured with SWA during four days (two weekdays and two weekend days) during the same time period covered by the DHI interview. The mean EIrep/BMR was 1.42 compared with the physical activity level (PAL=TEEmeas /BMR) which was 1.68. EI was underreported significantly by 1.73 ± 2.63 MJ/day (95 % CI: 1.16, 2.30). A statistically significant difference in underreporting was found between the 64 children with overweight and the 21 children with obesity. The EI of overweight children was underreported by 11 % compared with the EI of obese children who was underreported by 22 % (95% CIs: 0.55, 3.08). However, there were no significant differences in underestimation of EI with respect to gender. In conclusion, when using a DHI method, the EI of overweight and obese children was underreported by 14 %. Furthermore, the EI of obese children was underreported twice as much as the EI of overweight children.
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