Abstract
ObjectiveTo assess the magnitude of underreport of energy intake (EI) obtained with food records (FR) in low–income adults, and characteristics associated.MethodsThe studied group included 84 adults (20 ‐ 60 years old). Energy expenditure (EE) was estimated using the Doubly labelled water (DLW) method. To define misreporting, the 95% limits of agreement were used. Student T‐test was applied to evaluate differences in the magnitude of misreporting according to exploratory variables (p<0.05). ResultsThe limits indicating under and over report were 0.62 and 1.32 for the ratio EI/EE. Underreport of EI was observed in 29% of the participants. In average, UR energy was about 30%. Men presented smaller magnitude of underreported (UR) EI than women. The proportion of UR was higher among less educated participants compared to those who had at least 8 years of education (‐37% vs. ‐25%; p=0.02). Individuals with irregular meals profile showed greater magnitude of UR when compared to those that reported having regularly the main meals (‐46% vs. ‐28%; p=0.03). There was a greater chance of EI underreporting among individuals that regularly replaced lunch or dinner by a snack (OR: 4.5; CI95%: 1.3; 16.1).
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