Nutriquid-Gest: cuestionario estructurado y autoadministrado para evaluar la ingesta alimentaria en mujeres embarazadas. Validación de una encuesta alimentaria

Abstract

Introduction: In Argentina there is no a structured self-administered questionnaire to evaluate daily energy and nutrient consumption in pregnant women. Objective: To design and validate a structured and self-administered registry adapted to the dietary pattern of the Argentine population, to measure individual energy and nutrient intakes in pregnant women (NutriQuid-Gest, [NQ-G]). Materials and methods: We designed a structured, self-administered food survey and a record-loading program to quantify automatically energy and nutrient intakes. The validation included: 1) comparison of NQ-G records completed by pregnant volunteers (20 to 40 years) vs. a nutritionist (reference), and 2) verification of consumption sensitivity on different days of the week. Statistical analysis: It included descriptive statistics, Analysis of variance (ANOVA), intraclass correlation coefficient, nonparametric regression and cross-classification in quintiles. Results: The first validation (pregnant volunteers vs. reference) showed an underestimation of ≤ 10% of energy and macronutrient intakes. In the second validation 120 voluntary pregnant women (92% response) completed the NQ-G for se ven consecutive days. The caloric intake was 2,943 ± 2,015 kcal/day (mean ± standard deviation), with 16% protein, 48% carbohydrates, 36% lipids and 11% refined sugars. Conclusion: NQ-G is a valid, simple, well-accepted and low-cost tool to assess dietary intake in pregnant women.