P155 The Nutrition Literacy Assessment Instrument - Brazil (NLit-Br): Reliability of the Online Version


      The Nutrition Literacy Assessment Instrument (NLit) is a tool designed to assess print literacy and numeracy within nutrition contexts and the capability to apply nutrition knowledge and skills. In 2015-2017, NLit was culturally and linguistically adapted to Portuguese (Brazil). The sample consisted of 30 subjects with at least one chronic diseases with an average age of 62 years. The content validity (S-CVI 0.85), convergent validity (r = 0.66, P < 0.01) and internal consistency (KR-20 = 0.86) of the NLit-Br were confirmed. However, amid the SARS-COVID-19 pandemic, there is a need to have the instrument available remotely.


      To test the reliability of the NLit-Br online version in an adult population.

      Study Design, Settings, Participants

      Cross-sectional study was carried out in March 2020. With a non-probabilistic convenience sample considered statistically sufficient (ICC > 0.06).The sample was selected based on researchers access to the population and according to statistical criteria validated in other studies. That way, 30 completed questionnaires were analyzed. The convenient sample consisted of 21 workers from 3 banking agencies of a financial institution in Brasilia, DF, Brazil.

      Measurable Outcomes/Analysis

      Nutrition literacy was measured by the NLitBr, comprised of five subscales: Nutrition & Health, Energy Sources in Food, Food Label & Numeracy, Food Groups, and Consumer Skills. Participants were randomly divided into 2 groups. Both groups completed the online and paper version of the NLit-Br on the same day, with a minimum of 2 hours apart. Reliability was measured by the intraclass correlation coefficient (ICC).


      The population studied was predominantly male (57.1%), with graduate or postgraduate (97.4%) and household income above 7 minimum wages, U$ 1516,09 (76,2%). The NLit-Br demonstrated substantial reliability (ICC > 0.75) and test-retest reliability. The mean scores with the standard deviation of the NLit-Br for the online (55.62 ± 4.09 points) and printed (54.00 ± 4.54 points) versions were similar.


      The NLit-Br online is a reliable tool for remotely measuring nutrition literacy in adults.




      Supplementary data related to this article can be found at