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Natalia Elorriaga1, Ana Soledad Cavallo2, Daniela Luz Moyano3

  • 1Instituto de Efectividad Clínica y Sanitaria (IECS). Departamento de Investigación en Enfermedades Crónicas. Buenos Aires, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina (CONICET). Centro de Investigaciones en Epidemiología y Salud Pública (CIESP IECS-CONICET). Buenos Aires, Argentina Universidad de Buenos Aires. Facultad de Medicina. Escuela de Nutrición. Buenos Aires, Argentina. Universidad Nacional de La Matanza. Departamento de Salud. San Justo, Argentina.. nelorriaga@iecs.org.ar.

Revista De La Facultad De Ciencias Medicas (Cordoba, Argentina)
|June 28, 2021
PubMed
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This summary is machine-generated.

The INFORMAS protocol was adapted for Buenos Aires supermarkets to measure healthy vs. unhealthy food availability. The adapted protocol showed reliable results, indicating its suitability for assessing food environments.

Area of Science:

  • Public Health Nutrition
  • Food Environment Research
  • Nutritional Epidemiology

Background:

  • The International Network for Food and Obesity/Non-communicable Diseases Research, Monitoring and Action Support (INFORMAS) developed a protocol to assess supermarket food availability.
  • Assessing the food environment is crucial for understanding dietary patterns and non-communicable disease (NCD) risk.

Purpose of the Study:

  • To adapt the INFORMAS Supermarket Food Availability Protocol for use in Buenos Aires (BA).
  • To evaluate the inter-observer variability of the adapted protocol in BA supermarkets.

Main Methods:

  • The core indicator is the relative availability of healthy (AS) versus unhealthy (ANS) foods, calculated as the ratio of shelf space (AS/ANS).
  • Food selections were adapted to the Argentinian context.

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  • A reference measurement in 5 supermarkets classified foods according to Argentinian dietary guidelines.
  • Inter-observer reliability was assessed using the intra-class correlation coefficient (ICC) with two observers in three supermarkets.

    • Main Results:

    • The reference measurement showed a mean AS/ANS ratio of 0.34 (SD 0.18), ranging from 0.16 to 0.61.
    • The adapted indicator yielded similar results, with a mean difference of -0.05 (SD 0.04).
    • High inter-observer reliability was found, with an ICC of 0.92 (95% CI 0.86–0.98).

    Conclusions:

    • The INFORMAS protocol was successfully adapted for use in Buenos Aires.
    • Modifications to food classification and adequate inter-observer reliability support its application in this setting.
    • This adapted protocol can be a valuable tool for monitoring and intervening in the food environment of Buenos Aires.