Abstract Background: adherence to Dietary Approach to Stop Hypertension (DASH) has demonstrated to be effective in lowering blood pressure and other cardiovascular risk markers in different populations, but has never been evaluated in the Mexican population. Objective: to assess adherence to the DASH dietary pattern by using an adapted DASH adequacy index (DASH-AI), and to evaluate its association with cardiovascular risk markers in an adult Mexican population. Methods: we conducted a cross-sectional analysis of data of 1,490 adults aged 20-50 years. Diet was assessed with a Food Frequency Questionnaire and sodium intake by 24-hour urinary sodium excretion; the DASH-AI score was calculated based on the DASH nutrient targets. Multivariable linear and logistic regression analyses were performed to estimate the association between the DASH-AI score and cardiovascular risk markers (body mass index [BMI], waist circumferences, systolic (SBP) and diastolic blood pressure (DBP), glucose, triglycerides, total cholesterol, and high- and low-density lipoproteins). Results: we observed an association of the DASH-AI score with BMI, WC and DBP in the linear (BMI, β: -0.55, 95 % CI: -0.77, -0.33; WC, β: -1.66, 95 % CI: -2.19, -1.13; DBP, β: -0.65, 95 % CI: -1.07, -0.24), and logistic (BMI > 25 kg/m2, OR: 0.82, 95 % CI: 0.74, 0.93; elevated WC, OR: 0.72, 95 % CI: 0.64, 0.81; DBP, OR: 0.83, 95 % CI: 0.72, 0 .95) models. Conclusion: compliance to the DASH-style diet was inversely associated with BMI, WC and DBP in this Mexican population. Promoting adherence to this dietary pattern in the context of Mexican diet is needed to improve cardiovascular health in this population.

Resumen Antecedentes: la adherencia al patrón de alimentación DASH ha mostrado ser eficaz para reducir la presión arterial y los marcadores de riesgo cardiovascular en diferentes poblaciones, pero nunca en la mexicana. Objetivo: evaluar la adherencia al patrón de alimentación DASH mediante un índice adapatado a los lineamientos DASH (DASH-AI) y evaluar su asociación con marcadores de riesgo. Métodos: análisis transversal de datos de 1490 adultos de entre 20 y 50 años de edad. La ingesta dietética se evaluó utilizando un cuestionario de frecuencia de consumo de alimentos y el sodio a través de la excresión urinaria en 24 horas; la puntuación DASH-AI se calculó de acuerdo con la adherencia a las recomendaciones DASH. Se realizaron modelos logísticos y lineales para estimar la asociación entre el puntaje DASH-AI y los marcadores de riesgo cardiovascular (índice de masa corporal [IMC], circunferencia de cintura (CC), presión arterial sistólica (PAS) y diastólica (PAD), glucosa, triglicéridos, colesterol total, lipoproteínas de alta y baja densidad). Resultados: observamos una asociación del DASH-AI con el IMC, la CC y la PAD en los modelos lineales (IMC β: -0,55, IC del 95 %: -0,77, -0,33; CC β: -1,66, IC del 95 %: -2,19, -1,33; PAD, β: -0,65, IC del 95 %: -1,07, -0,24) y logístico (IMC > 25 kg/m2, OR: 0,82, IC del 95 %: 0,74, 0,93; CC elevado, OR: 0,72; IC del 95 %: 0,64, 0,81; PAD, OR: 0,83, IC del 95 %: 0,72, 0,95). Conclusión: la adherencia a la dieta DASH se asoció inversamente con el IMC, la CC y la PAD en la población estudiada. Es necesario promover la adherencia a este patrón dietético para mejorar la salud cardiovascular.

Abstract: Objective: To study the association of food insecurity with changes in diet perceived during lockdown by Covid-19 in Mexico. Materials and methods: The level of food insecurity was identified using the Latin American and Caribbean Scale of Food Security in 9 933 households of the 2020 National Health and Nutrition Survey Covid-19. Changes in the food group consumption were classified in negative or positive changes, or unchanged during lockdown. The association of changes in diet with the level of food insecurity was analyzed with multinomial models adjusted for sociodemographic characteristics of the household. Results: Households that reported reduced spending on food and with severe food insecurity showed a greater probability of having negative changes (0.43, 95%CI: 0.40-0.46). Conclusions: Severe food insecurity is associate with negative food changes during lockdown by Covid-19, in households with reduced spending on food in Mexico.

Resumen: Objetivo: Estudiar la asociación de la inseguridad alimentaria con los cambios percibidos en la alimentación durante el confinamiento por Covid-19 en México. Material y métodos: El nivel de inseguridad alimentaria se obtuvo utilizando la Escala Latinoamericana y Caribeña de Seguridad Alimentaria (ELCSA) en 9 933 hogares de la Encuesta Nacional de Salud y Nutrición Continua 2020 Covid-19 (Ensanut -Continua- 2020 Covid-19). Los cambios en el consumo de grupos de alimentos durante el confinamiento se clasificaron en negativos, positivos o sin cambios durante el confinamiento. La asociación entre cambios en la alimentación e inseguridad alimentaria se analizó con modelos multinomiales ajustados por características sociodemográficas del hogar. Resultados: Los hogares con reducción en el gasto en alimentos e inseguridad alimentaria severa mostraron mayor probabilidad de tener cambios negativos en su alimentación (0.43, IC95%: 0.40-0.46). Conclusiones: La inseguridad alimentaria severa se asocia con cambios negativos en la alimentación durante el confinamiento por Covid-19, en hogares con reducción del gasto en alimentos.

Resumen Objetivo: Actualizar la prevalencia de desnutrición y sus tendencias en los últimos 30 años e identificar factores asociados con la baja talla en una muestra representativa nacional de niños <5 años en México. Material y métodos: Se estimaron prevalencias de desnutrición en <5 años en 2018-19 y se compararon con prevalencias de los últimos 30 años. Se estudiaron asociaciones de factores geográficos, del hogar, maternos e individuales con baja talla, utilizando regresión logística múltiple. Resultados: El 4.8% de los niños <5 años presentó bajo peso, 14.2% baja talla y 1.4% emaciación. Entre 1988-2012 hubo un descenso en baja talla interrumpido entre 2012-2018. La baja talla se asoció positivamente con residencia rural, región Sur, hogares más pobres, madres indígenas y mayor número de hijos, y negativamente con diversidad dietética. Conclusiones: La desnutrición crónica es un problema persistente asociado con factores de vulnerabilidad social, cuya tendencia descendente de 30 años se interrumpió entre 2012-2018. Es imperativo implementar una estrategia nacional de prevención de baja talla.

Abstract Objective: To update malnutrition prevalence and its trends over the last 30 years and identify factors associated with stunting in a national sample of children <5 y in Mexico. Materials and methods: Malnutrition prevalences in children <5 y in 2018-19 were compared with prevalences from the previous 30 years. Associations of stunting with geographic, household, maternal and individual factors were assessed using multiple logistic regressions. Results: 4.8% of children <5 y were underweight, 14.2% stunted and 1.4% wasted. Between 1988-2012 a decreasing trend in stunting was observed that was interrupted between 2012-2018. Stunting was positively associated with children living in rural localities, the Southern Region, poorer households, with indigenous mothers or whose mothers had a greater number of children. A negative association was found with diet diversity. Conclusions: Stunting is a persistent problem associated with social vulnerability that had been declining in the last 30 years; however its descending trend was inter- rupted between 2012 and 2018. It is imperative to implement a national strategy for the prevention of stunting.

Resumen Objetivo: Evaluar los factores asociados con el cambio en la inseguridad alimentaria (IA) con las Encuestas Nacionales de Salud y Nutrición (Ensanut) 2012 y 2018-19. Material y métodos: Se obtuvo información de la Escala Latinoamericana y Caribeña de Seguridad Alimentaria en ambas encuestas. Mediante modelos de regresión logística ordinal se evaluó la contribución de ser beneficiario de programas sociales y otras variables sociodemográficas sobre el nivel de IA entre las dos encuestas. Resultados: La IA disminuyó 4.8 puntos porcentuales (p<0.0001). Los beneficiarios de programas presentaron mayor IA que los no beneficiarios (ß=0.258, IC95%: 0.192-0.325). Los hogares con estufa/horno para cocinar y con agua en la vivienda presentaron mayor seguridad alimentaria. Conclusiones: La IA persiste en México como problema severo de salud pública en uno de cada cinco hoga- res con mayores carencias. Se requieren acciones integrales del Estado para fortalecer factores estructurales y mejorar el acceso económico de los sectores sociales empobrecidos.

Abstract Objective: To assess factors related to changes in food insecurity (FI), based on information from the National Health and Nutrition Surveys 2012 and 2018-19. Materials and methods: The Latin American and Caribbean Food Security Scale was applied in both surveys. Using ordinal logistic regression models was evaluated the contribution of social programs and other sociodemographic variables on FI level among both surveys. Results: FI decreased 4.8 percentage points (p<0.0001), in the period. Beneficiaries of social programs showed higher FI levels than non-beneficiaries (ß=0.258, 95%CI: 0.192-0.325). Households with greater infrastructure (stove or oven and water service) presented greater food security. Conclusions: FI persists as a severe public health problem in 1 out of 5 households in Mexico, where deficiencies are greater. State comprehensive actions are required to strengthen structural factors and improve economic access for impoverished social sectors.

Abstract: Objective: To describe beverages consumption practices, and school drinking fountains utilization among secondary school’s students from National School Drinking Fountains Program (PNBE, Spanish acronym). Materials and methods: Descriptive cross-sectional study with mixed methods in public secondary schools (morning and afternoon shifts). We estimated plain water and sugar sweetened beverages consumption, school drinking fountains utilization, and barriers-facilitators for plain water consumption. Results: We interviewed 617 students (11 to 16 y); 51.5% were men. The mean of plain water intake (568.9 ml; CI95%: 470.7-667.1), and sugar sweetened beverages (143.4 ml; CI95%:124.0-162.7) was similar among women and men. In the morning shift women had a lower probability of utilizing the school drinking fountains in comparison with men (p=0.032). Men and women have mistrust water that comes from school drinking fountains. Conclusions: Integral actions are necessary to favor plain water consumption, and utilization of school drinking fountains at PNBE secondary schools.

Resumen: Objetivo: Describir prácticas de consumo de bebidas y uso de bebederos escolares en estudiantes de secundarias del Programa Nacional de Bebederos Escolares (PNBE). Material y métodos: Estudio transversal descriptivo, con enfoque mixto en secundarias públicas (turnos matutino y vespertino). Se indagó el consumo de agua y bebidas azucaradas, utilización de bebederos escolares y barreras-facilitadores para el consumo de agua. Resultados. Se entrevistaron 617 estudiantes (11 a 16 años); 51.5% fueron hombres. El consumo promedio de agua (568.9 ml; IC95%: 470.7-667.1) y bebidas azucaradas (143.4 ml; IC95%:124.0-162.7) fue similar entre hombres y mujeres. En el turno matutino las mujeres presentaron una menor probabilidad de hacer uso de los bebederos en comparación con los hombres (p=0.032). Hombres y mujeres desconfían del agua de los bebederos. Conclusiones: Se requieren acciones integrales para favorecer el consumo de agua y el uso de los bebederos en las secundarias del PNBE.

ABSTRACT OBJECTIVE To evaluate the association between dietary patterns, stunting, and overweight among Mexican preschoolers. METHODS This study was conducted with anthropometric (weight, height/length), sociodemographic (age, gender, education level of household head, socioeconomic status, country region and area, ethnicity, and beneficiary of social programs), and dietary data (Semiquantitative-food frequency questionnaire) on children aged from 1 to 4 years collected from the Mexican National Health and Nutrition Survey-2012. Dietary patterns were derived by principal components analysis. The association between dietary patterns, stunting, and overweight was assessed by prevalence ratios (PR), estimated by Poisson regression. RESULTS In total, 1,112 preschoolers (mean age 3.06 years, SD = 1.08 years; 48.8% females) were included in the study; 11.9% of whom presented stunting, and 6.7% overweight. We identified four dietary patterns: Fruits and Vegetables [F&V], Western [W], Traditional [T], and Milk and Liquids [M&L]. Considering the lowest tertile of each dietary pattern as reference, the prevalence of stunting was 2.04 times higher [95%CI: 1.17–3.56] among children in the highest tertile of the “F&V” pattern. The prevalence of stunting was lower among children in the highest tertile of the “W” pattern [PR = 0.48; 95%CI: 0.27–0.85]. Overweight was negatively associated with the “F&V” dietary pattern [PR = 0.37; 95%CI: 0.16–0.85 for its highest tertile], and children whose consumption was mostly equivalent to the “T” pattern showed higher prevalence of stunting [PR = 1.74; 95%CI: 1.01–3.00]. CONCLUSIONS The prevalence of stunting and overweight in a nationwide sample of Mexican preschoolers was associated with dietary patterns.

ABSTRACT OBJECTIVE To evaluate the association between dietary patterns, stunting, and overweight among Mexican preschoolers. METHODS This study was conducted with anthropometric (weight, height/length), sociodemographic (age, gender, education level of household head, socioeconomic status, country region and area, ethnicity, and beneficiary of social programs), and dietary data (Semiquantitative-food frequency questionnaire) on children aged from 1 to 4 years collected from the Mexican National Health and Nutrition Survey-2012. Dietary patterns were derived by principal components analysis. The association between dietary patterns, stunting, and overweight was assessed by prevalence ratios (PR), estimated by Poisson regression. RESULTS In total, 1,112 preschoolers (mean age 3.06 years, SD = 1.08 years; 48.8% females) were included in the study; 11.9% of whom presented stunting, and 6.7% overweight. We identified four dietary patterns: Fruits and Vegetables [F&V], Western [W], Traditional [T], and Milk and Liquids [M&L]. Considering the lowest tertile of each dietary pattern as reference, the prevalence of stunting was 2.04 times higher [95%CI: 1.17–3.56] among children in the highest tertile of the “F&V” pattern. The prevalence of stunting was lower among children in the highest tertile of the “W” pattern [PR = 0.48; 95%CI: 0.27–0.85]. Overweight was negatively associated with the “F&V” dietary pattern [PR = 0.37; 95%CI: 0.16–0.85 for its highest tertile], and children whose consumption was mostly equivalent to the “T” pattern showed higher prevalence of stunting [PR = 1.74; 95%CI: 1.01–3.00]. CONCLUSIONS The prevalence of stunting and overweight in a nationwide sample of Mexican preschoolers was associated with dietary patterns.

Abstract: Objective: To describe the consumption of recommended and non-recommended food groups for daily consumption, and their association with sociodemographic characteristics in Mexican population. Materials and methods: Information from the 2018-19 National Health and Nutrition Survey from Mexico, using a 7-day food consumption frequency questionnaire, in children and adults. We estimated consumption of seven food groups in quartiles by age group. We analyzed the association of locality of residence, region and tertil of well-being index (WBI). Results: Living in urban locality, north region, or medium or high WBI were associated with higher possibility of being in higher quartiles of egg and dairy, legumes, processed meat and snacks, candies and desserts consumption. Conclusions: In the southern Mexico more fruits are consumed, but less legumes, eggs and dairy products, while in urban locations more snacks, sweets and desserts are consumed.

Resumen: Objetivo: Describir el consumo de grupos de alimentos recomendables y no recomendables para consumo cotidiano y su asociación con características sociodemográficas en población mexicana. Material y métodos: Información tomada de la Encuesta Nacional de Salud y Nutrición 2018-19, utilizando un cuestionario de frecuencia de consumo de alimentos. Se estimaron cuartiles de consumo de siete grupos de alimentos por grupo poblacional. Se analizó la asociación del consumo con tipo de localidad, región y terciles de condición de bienestar (ICB). Resultados: Pertenecer a localidades urbanas, región norte e ICB medio y alto se asoció con mayor posibilidad de estar en los cuartiles más altos de consumo de huevo y lácteos y carnes procesadas, mientras que la región sur se asoció con mayor consumo de leguminosas y bebidas endulzadas. Conclusión: En el sur de México se consume más frutas, pero menos leguminosas, huevo y lácteos, mientras que en localidades urbanas se consume más carnes procesadas, botanas, dulces y postres.

Abstract: Objective: To assess the association between a healthy and sustainable dietary index (HSDI) and overweight and obesity in Mexican adults. Materials and methods: We analyzed a sample of Mexican adults (n=11 506) from the National Health and Nutrition Survey 2018-19 with body mass index and dietary intake data. We estimated the HSDI score based on foods and beverages recorded in a semi-quantitative food frequency questionnaire, which were classified into 13 food groups. Ordinal logistic model was fitted to analyze the association between HSDI score and overweight and obesity. Results: The mean HSDI score was 6.7 out of 13 points. A significant interaction of HSDI score and sex was found. Men with higher HSDI score showed lower obesity prevalence (OR=0.55,p<0.05); this association was not significant in women. Conclusions: A higher HSDI is related to a lower prevalence of obesity and therefore of chronic diseases. Further research is required for its implementation at the population level.

Resumen: Objetivo: Evaluar la asociación de un patrón de dieta sostenible con sobrepeso y obesidad en adultos mexicanos. Material y métodos: En 11 506 adultos de la Ensanut 2018-19, con información de índice de masa corporal y del cuestionario de frecuencia de consumo de alimentos, se estimó el puntaje de un índice de dieta saludable y sostenible (IDSS) clasificando los alimentos y bebidas en 13 grupos. Mediante modelo logístico ordinal, se analizó la asociación entre el puntaje del IDSS y la presencia de sobrepeso y obesidad. Resultados: El puntaje promedio del IDSS fue 6.7 de 13 puntos. Se encontró interacción significativa entre IDSS y sexo sobre la prevalencia de obesidad. Los hombres con mayor IDSS presentaron menor prevalencia de obesidad (OR=0.55,p<0.05); esta asociación no fue significativa en mujeres. Conclusiones: Mayor IDSS se relaciona con menor prevalencia de obesidad y, por ende, de enfermedades crónicas. Se requiere mayor investigación para su implementación a nivel poblacional.

Resumen Objetivo: Estimar la ingesta habitual y la prevalencia de inadecuación de nutrimentos selectos en la población mexicana y el efecto potencial de los factores de retención de nutrimentos (FRN). Asimismo, describir la metodología utilizada en el procesamiento del recordatorio de 24 horas de la Encuesta Nacional de Salud y Nutrición de Medio Camino 2016 (Ensanut MC 2016). Material y métodos: Se analizó la información dietética de Ensanut MC 2016 con y sin utilización de FRN. Resultados: En los nutrimentos evaluados, las prevalencias de inadecuación fueron superiores al 10% en todos los grupos de estudio. La no consideración de los FRN causó la subestimación en las prevalencias de inadecuación en un rango de 2% a 55.5%. Conclusión: Se documenta la relevancia de la aplicación de FRN para la adecuada estimación de las prevalencias de inadecuación en estudios poblacionales.

Abstract Objective: To estimate the usual intake and the prevalence of inadequacy of selected nutrients in the Mexican population and the potential effect that the nutrient retention factors (NRF) could have on these estimates. Likewise, document the methodology used in the analysis of the 24 hours of the mid-way National Health and Nutrition Survey 2016 (Ensanut MC 2016). Materials and methods: Dietary information from the Ensanut MC 2016 was analyzed with and without the use of NRFs. Results: Most nutrients evaluated showed a relevant inadequacy prevalence above 10% in all age groups. Likewise, we documented that, when NRFs were not applied, estimated intakes and prevalence were significantly underestimated in a range of 2% to 55.5%. Conclusions: We documented the relevance of the application of NRFs for adequate estimation of the prevalence of inadequate intake of selected nutrients in population studies.

Abstract: Objective: To describe the undernutrition prevalence, as well as some sociodemographic characteristics associated to stunting in children under five years old, living on localities with less than 100 000 inhabitants in Mexico in 2012 and 2018. Material and methods: Low weight, stunting and wasting prevalences were calculated in children under 5y according to WHO Growth Reference. A comparison of stunting by sociodemographic and diet diversity variables is presented. Multi-variated logistic models between chronic malnutrition and sociodemographic variables were calculated. Results: In 2018, 4.4% of the individuals suffered low weight, 14.9% stunting and 1.5 % wasting. Stunting was greater in indigenous households (24.5%), households from the lower socioeconomic-index tertile (17.5%), and households with moderated/severe food insecurity (15.3%). Stunting was positively associated with indigenous condition; on the other hand a highly diverse diet resulted to be a protective factor against it. Conclusions: A high prevalence of chronical malnutrition was documented associated with high poverty conditions. It is important to enforce strategies aimed to contain it, mainly in such populations with greater social deprivation.

Resumen: Objetivo: Describir la prevalencia de desnutrición infantil y algunas características sociodemográficas asociadas con la desnutrición crónica en menores de cinco años, de localidades de menos de 100 000 habitantes en 2012 y 2018 en México. Material y métodos: Se calcularon prevalencias de bajo peso, desnutrición crónica y emaciación. Se presenta la comparación de la desnutrición crónica por variables sociodemográficas y de diversidad dietética. Se probaron modelos logísticos multivariados entre desnutrición crónica y variables sociodemográficas. Resultados: En 2018, 4.4% presentó bajo peso, 14.9% desnutrición crónica y 1.5% emaciación. La desnutrición crónica fue mayor en hogares indígenas (24.5%), hogares de mayores carencias socioeconómicas (17.5%) y hogares con inseguridad alimentaria moderada/severa (15.3%). La desnutrición crónica se asoció positivamente con habitar hogar indígena y la alta diversidad dietética resultó factor protector de desnutrición crónica. Conclusiones: Se documenta una alta prevalencia de desnutrición crónica asociada con condiciones de alta marginalidad. Es importante fortalecer estrategias diseñadas para contener la desnutrición, sobre todo en las poblaciones de mayores carencias sociales.

Abstract: Objective: To estimate the prevalence and distribution of anemia in Mexican women and their association with sociodemographic factors and diet diversity. Materials and methods: We analyzed information of women in childbearing age. The Ensanut 100k is a probabilistic survey that over-represents households with less economic capacity. Anemia was estimated using hemoglobin concentration. We collected sociodemographic and health information, food insecurity, and dietary diversity. Results: 34.3% of the women presented anemia, belong to tertile 3 of welfare status is a protective factor for anemia (OR= 0.26, 95%CI 0.16-0.61), and living in a household with food security, as well as high diversity of the diet in rural women (OR= 0.57, 95%CI 0.36-0.92). Conclusions: It is necessary to implement actions of detection and early attention of the anemia in women in childbearing age, identification of its underlying causes, strengthening and reformulation of strategies to prevent it.

Resumen: Objetivo: Estimar la prevalencia y distribución de anemia en mujeres mexicanas y su asociación con factores sociodemográficos y la diversidad de la dieta. Material y métodos: Se incluyeron mujeres en edad fértil de la encuesta probabilística Ensanut 100k, que representa a los hogares con menos capacidades económicas. Se estimó la prevalencia de anemia mediante concentración de hemoglobina, con información sociodemográfica, de salud, inseguridad alimentaria y diversidad de la dieta. Resultados: El 34.3% de las mujeres presentó anemia; los factores protectores para anemia fueron pertenecer al tercil 3 de condición de bienestar (OR=0.26, IC95% 0.16-0.61), alta diversidad de la dieta en áreas rurales (OR=0.57, IC95%0.36-0.92), así como vivir en un hogar con seguridad alimentaria. Conclusiones: Es necesario implementar acciones de detección y atención temprana de la anemia en las mujeres de edad fértil, así como identificar las causas subyacentes y fortalecer y reformular estrategias para prevenirla.

Abstract: Objective: To describe the undernutrition prevalence, as well as some sociodemographic characteristics associated to stunting in children under five years old, living on localities with less than 100 000 inhabitants in Mexico in 2012 and 2018. Material and methods: Low weight, stunting and wasting prevalences were calculated in children under 5y according to WHO Growth Reference. A comparison of stunting by sociodemographic and diet diversity variables is presented. Multi-variated logistic models between chronic malnutrition and sociodemographic variables were calculated. Results: In 2018, 4.4% of the individuals suffered low weight, 14.9% stunting and 1.5 % wasting. Stunting was greater in indigenous households (24.5%), households from the lower socioeconomic-index tertile (17.5%), and households with moderated/severe food insecurity (15.3%). Stunting was positively associated with indigenous condition; on the other hand a highly diverse diet resulted to be a protective factor against it. Conclusions: A high prevalence of chronical malnutrition was documented associated with high poverty conditions. It is important to enforce strategies aimed to contain it, mainly in such populations with greater social deprivation.

Resumen: Objetivo: Describir la prevalencia de desnutrición infantil y algunas características sociodemográficas asociadas con la desnutrición crónica en menores de cinco años, de localidades de menos de 100 000 habitantes en 2012 y 2018 en México. Material y métodos: Se calcularon prevalencias de bajo peso, desnutrición crónica y emaciación. Se presenta la comparación de la desnutrición crónica por variables sociodemográficas y de diversidad dietética. Se probaron modelos logísticos multivariados entre desnutrición crónica y variables sociodemográficas. Resultados: En 2018, 4.4% presentó bajo peso, 14.9% desnutrición crónica y 1.5% emaciación. La desnutrición crónica fue mayor en hogares indígenas (24.5%), hogares de mayores carencias socioeconómicas (17.5%) y hogares con inseguridad alimentaria moderada/severa (15.3%). La desnutrición crónica se asoció positivamente con habitar hogar indígena y la alta diversidad dietética resultó factor protector de desnutrición crónica. Conclusiones: Se documenta una alta prevalencia de desnutrición crónica asociada con condiciones de alta marginalidad. Es importante fortalecer estrategias diseñadas para contener la desnutrición, sobre todo en las poblaciones de mayores carencias sociales.

Abstract: Objective: To estimate the prevalence and distribution of anemia in Mexican women and their association with sociodemographic factors and diet diversity. Materials and methods: We analyzed information of women in childbearing age. The Ensanut 100k is a probabilistic survey that over-represents households with less economic capacity. Anemia was estimated using hemoglobin concentration. We collected sociodemographic and health information, food insecurity, and dietary diversity. Results: 34.3% of the women presented anemia, belong to tertile 3 of welfare status is a protective factor for anemia (OR= 0.26, 95%CI 0.16-0.61), and living in a household with food security, as well as high diversity of the diet in rural women (OR= 0.57, 95%CI 0.36-0.92). Conclusions: It is necessary to implement actions of detection and early attention of the anemia in women in childbearing age, identification of its underlying causes, strengthening and reformulation of strategies to prevent it.

Resumen: Objetivo: Estimar la prevalencia y distribución de anemia en mujeres mexicanas y su asociación con factores sociodemográficos y la diversidad de la dieta. Material y métodos: Se incluyeron mujeres en edad fértil de la encuesta probabilística Ensanut 100k, que representa a los hogares con menos capacidades económicas. Se estimó la prevalencia de anemia mediante concentración de hemoglobina, con información sociodemográfica, de salud, inseguridad alimentaria y diversidad de la dieta. Resultados: El 34.3% de las mujeres presentó anemia; los factores protectores para anemia fueron pertenecer al tercil 3 de condición de bienestar (OR=0.26, IC95% 0.16-0.61), alta diversidad de la dieta en áreas rurales (OR=0.57, IC95%0.36-0.92), así como vivir en un hogar con seguridad alimentaria. Conclusiones: Es necesario implementar acciones de detección y atención temprana de la anemia en las mujeres de edad fértil, así como identificar las causas subyacentes y fortalecer y reformular estrategias para prevenirla.

Abstract: Objective: To estimate the recommendable and non-recommendable food groups for usual consumption by sociodemographic characteristics in Mexican population. Materials and methods: Through a 7-day, semi-quantitative food frequency questionnaire used in 2016 National Health and Nutrition Survey, we estimated the proportions of population (preschool and school children, adolescents and adults) who consumed food groups that are relevant for public health by area, region and socioeconomic status (SES). Results: Less than 50% of population consumed vegetables daily; almost 80% of the population consumed plain water daily and sweetened beverages (3 d/week). Center and Mexico City regions had the highest percentage of fruits and vegetables consumers (p<0.012). High SES had the highest consumer´s percentage of recommendable and non-recommendable food groups. Conclusions: A high percentage of the population do not consume fruits, vegetables and plain water daily.

Resumen: Objetivo: Estimar el consumo de alimentos recomendables y no recomendables para consumo cotidiano, por características sociodemográficas en la población mexicana. Material y métodos: Se utilizó información del cuestionario semicuantitativo de frecuencia de consumo de alimentos (de siete días), de la Encuesta Nacional de Salud y Nutrición de Medio Camino 2016. Se estimó el porcentaje de consumidores en preescolares, escolares, adolescentes y adultos, por área, región y nivel socioeconómico (NSE). Resultados: Menos de 50% de la población consumió de verduras diariamente. Alrededor de 80% de la población consumió agua sola diariamente y bebidas endulzadas al menos tres días a la semana. Las regiones Centro y Ciudad de México tuvieron el mayor porcentaje de consumidores de frutas y verduras (p<0.012). El NSE alto presentó el mayor porcentaje de consumidores de grupos de alimentos recomendables y no recomendables. Conclusiones. Un porcentaje importante de la población no consume frutas, verduras, ni agua sola diariamente.