The agreement between EI and TEE was investigated in 36 (47.2% boys) children aged 4-10 years from Belgium and Spain using subgroup analyses and Bland-Altman plots. Low-energy-reporters (LER), adequate-energy-reporters (AER) and high-energy-reporters (HER) were defined from the ratio of EI over TEE by application of age- and sex-specific cut-off values.
There was good agreement between means of EI (1500聽kcal/day) and TEE (1523聽kcal/day) at group level though in single children, i.e. at the individual level, large differences were observed. Almost perfect agreement between EI and TEE was observed in thin/normal weight children (EI: 1511聽kcal/day; TEE: 1513聽kcal/day). Even in overweight/obese children the mean difference between EI and TEE was only聽鈭?6聽kcal/day. Among the participants, 28 (78%) were classified as AER, five (14%) as HER and three (8%) as LER.
Two proxy-reported 24-HDRs were found to be a valid instrument to assess EI on group level but not on the individual level.