Cannabis use is associated with reduced access to kidney transplantation and an increased risk of acute rejection post-transplant.

BACKGROUND: The association between cannabis use and access to waitlisting, transplantation, and post-transplant outcomes remains uncertain. METHODS: Patients referred for kidney transplant (KT) to the University Health Network from January 1, 2003, to June 30, 2020, and followed until December 31, 2020, were included. Predictors of reported cannabis use were examined using a logistic regression model. The association between cannabis use and time to clearance for KT, undergoing KT, and post-transplant outcomes was evaluated using Cox proportional hazards models. RESULTS: Among 3734 patients, the prevalence of reported cannabis use was 11.8%. Cannabis use was associated with a lower likelihood of KT clearance (adjusted hazard ratio [aHR] .82 [95% confidence interval (CI): .72, .94]). Once cleared for KT, cannabis use did not predict the subsequent receipt of KT (aHR .92, [95% CI: .79, 1.08]). Among 2091 KT recipients, cannabis use was associated with a higher likelihood of biopsy-proven acute rejection (aHR 1.55, [95% CI: 1.06, 2.27]). The relative hazard of death-censored graft failure was similarly elevated (aHR 1.60 [95% CI: .95, 2.72]). Cannabis use did not predict total graft failure (aHR 1.33 [95% CI: .90, 1.96]), death with graft function (aHR 1.06 [95% CI: .59, 1.89]), or hospital readmission in the first-year post-transplant (aHR 1.26 [95% CI: .95, 1.68]). CONCLUSIONS: Cannabis users have less access to transplantation and an increased risk of acute rejection, possibly leading to more graft loss. Further studies are warranted to understand possible mechanisms for the increased risk of allograft immune injury among cannabis users.

Adherence to the EAT-Lancet index is associated with lower diet costs in the Mexican population.

BACKGROUND: Poor diet quality contributes to morbidity and mortality and affects environmental sustainability. The EAT-Lancet reference diet offers a healthy and sustainable solution. This study aimed to estimate the association between diet cost and dietary quality, measured with an EAT-Lancet Index. METHODS: An EAT-Lancet index was adapted to assess adherence to this dietary pattern from 24-h recalls data from the 2012 and 2016 Mexican National Health and Nutrition Surveys (n = 14,242). Prices were obtained from the Consumer Price Index. We dichotomized cost at the median (into low- and high-cost) and compared the EAT-Lancet index scores. We also used multivariate linear regression models to explore the association between diet cost and diet quality. RESULTS: Individuals consuming a low-cost diet had a higher EAT-Lancet score than those consuming a high-cost diet (20.3 vs. 19.4 from a possible scale of 0 to 42; p < 0.001) due to a lower intake of beef and lamb, pork, poultry, dairy, and added sugars. We found that for each one-point increase in the EAT-Lancet score, there was an average decrease of MXN$0.4 in the diet cost (p < 0.001). This association was only significant among low- and middle-SES individuals. CONCLUSIONS: Contrary to evidence from high-income countries, this study shows that in Mexico, adhering to the EAT-Lancet reference diet is associated with lower dietar costs, particularly in lower SES groups. These findings suggest the potential for broader implementation of healthier diets without increasing the financial burden.

Exploring barriers and facilitators to feeding children with minimal or no "Junk Food": Insights from Mexican women.

OBJECTIVE: This study aims to investigate the factors that promote or hinder the feeding of children with minimal or no ultra-processed products to inform the design of an mHealth strategy in Mexico and prevent child malnutrition among the economically vulnerable. METHODS: An exploratory qualitative study was conducted, involving 24 in-depth face-to-face interviews with caregivers of children aged 24-59 months from both urban and rural communities. To analyze the data, we used thematic analysis and incorporated a few elements of grounded theory. RESULTS: More barriers than facilitators were identified. Key barriers included: misconceptions and the widespread availability of junk food through an extensive network of grocery stores; neighbors and family gifting junk food; the association of soda with celebrations; the practice of indulging children with junk food; and the normalization of junk food consumption by both adults and children. Facilitators included: caregivers' awareness of the health risks associated with junk food; economic constraints limiting junk food purchases; support from husbands in regulating children's junk food consumption; the presence of a family member with diabetes; specific cultural beliefs about children's digestive health; as well as displacement of "healthy" foods that nourish children. CONCLUSION: Based on our findings, we formulated recommendations for interventions at intrapersonal, interpersonal, organizational, community, and public policy levels to support healthier feeding practices for children.

Food choice in transition: adolescent autonomy, agency, and the food environment.

Dietary intake during adolescence sets the foundation for a healthy life, but adolescents are diverse in their dietary patterns and in factors that influence food choice. More evidence to understand the key diet-related issues and the meaning and context of food choices for adolescents is needed to increase the potential for impactful actions. The aim of this second Series paper is to elevate the importance given to adolescent dietary intake and food choice, bringing a developmental perspective to inform policy and programmatic actions to improve diets. We describe patterns of dietary intake, then draw on existing literature to map how food choice can be influenced by unique features of adolescent development. Pooled qualitative data is then combined with evidence from the literature to explore ways in which adolescent development can interact with sociocultural context and the food environment to influence food choice. Irrespective of context, adolescents have a lot to say about why they eat what they eat, and insights into factors that might motivate them to change. Adolescents must be active partners in shaping local and global actions that support healthy eating patterns. Efforts to improve food environments and ultimately adolescent food choice should harness widely shared adolescent values beyond nutrition or health.

Ultra-processed foods consumption reduces dietary diversity and micronutrient intake in the Mexican population.

BACKGROUND: Currently, 30% of the total energy intake in the Mexican diet comes from ultra-processed foods. Although its consumption is associated with high intakes of added sugar and saturated fats and low intakes of dietary fibre, there is no evidence regarding its association with dietary diversity and micronutrient intake. The present study evaluated the association between ultra-processed foods consumption with dietary diversity and micronutrient intake in Mexico. METHODS: Ultra-processed foods items were identified in a 24-h recall from a sample of 10,087 participants aged ≥ 1 year. The minimum dietary diversity (MDD) was established by using the Food and Agriculture Organization 10 food group indicators with unprocessed, minimally processed and processed foods. The study conducted multiple linear regression models to evaluate the association between quintiles of energy contribution of ultra-processed foods with dietary diversity and micronutrient intake. RESULTS: A high consumption of ultra-processed foods was associated with a low dietary diversity and micronutrients intake. The association between ultra-processed foods and MDD was not linear (47.1%, 57.1%, 52.5%, 45.0% and 28.0% of participants achieved the MDD). On the other hand, the association was linear and negatively associated with: niacin, pantothenic acid, pyridoxine, folate, vitamin B12 , vitamin C, vitamin E, zinc, calcium, magnesium, potassium and phosphorus (p < 0.05). CONCLUSIONS: These findings are relevant in the context of the double burden of malnutrition currently faced in Mexico. Increasing dietary diversity and micronutrient intake is essential by discouraging ultra-processed foods consumption. However, other strategies are also needed to promote the dietary diversity and increase the consumption of unprocessed and minimally processed foods.

Cambios en el consumo de frutas, verduras y leguminosas en población mexicana menor de 20 años, Ensanut 2012 a 2022.

OBJETIVO: Estimar cambios en el consumo de frutas, verduras y leguminosas y su cumplimiento según recomendaciones internacionales en población menor de 20 años de México. Material y métodos. En 31 083 menores de 20 años con información de frecuencia de consumo de alimentos de las Encuestas Nacionales de Salud y Nutrición 2012, 2016, 2018 y 2020-2022, se estimó el cambio en el consumo de frutas, verduras y leguminosas ajustados mediante modelos de regresión cuantílica y la probabilidad de cumplimiento de las recomendaciones de ingesta de EAT-Lancet y la Organización Mundial de la Salud mediante modelos de regresión logit. RESULTADOS: Entre 2012 y 2020-2022 se observó un incremento en la mediana de consumo de 15% en frutas y 23.5% en verduras. La probabilidad de cumplimiento de recomendaciones de EAT-Lancet fue de 42.6% para frutas y 13.6% para verduras en 2020-2022. El consumo de leguminosas disminuyó 17.4% en 10 años. Conclusión. La población mexicana menor de 20 años se encuentra muy lejos de alcanzar las recomendaciones de consumo para la salud planetaria, a pesar de los incrementos modestos en el consumo de frutas y verduras. Se debe poner especial atención en el consumo de leguminosas por su disminución alarmante en estos grupos de edad. Es esencial realizar más investigación en este tema.

Consumidores de grupos de alimentos en población mexicana. Ensanut Continua 2020-2022.

OBJETIVO: Actualizar las estimaciones del porcentaje de población mexicana que consume grupos de alimentos recomendables y no recomendables de manera habitual. Material y métodos. Con información derivada del cuestionario semicuantitativo de frecuencia de consumo de alimentos de diferentes grupos de edad de la población participante en la Encuesta Nacional de Salud y Nutrición Continua de 2020 a 2022, se estimó el porcentaje de consumidores de trece grupos de alimentos de relevancia para la salud. RESULTADOS: Los grupos de alimentos mayormente consumidos en toda la población fueron el agua sola (>83%) y las bebidas endulzadas (>76%). Cerca de la mitad de la población menor de 20 años consumieron botanas, dulces y postres, cifra que es similar al porcentaje de consumidores de frutas y mayor al de consumidores de verduras (<30%). En todos los grupos de edad los consumidores de leguminosas no superan el 26%. Conclusión. La fracción de la población mexicana que consume bebidas endulzadas es muy alta en todos los grupos de edad, mientras que para alimentos saludables es baja. Se necesita profundizar en el análisis de las causas de estas diferencias y diseñar acciones encaminadas a aumentar la calidad de la dieta en la población mexicana.

Tendencia del consumo de frutas, verduras y leguminosas en adultos mexicanos. Ensanut 2012-2022.

OBJETIVO: Evaluar el consumo y porcentaje de adultos en apego a recomendaciones de la Organización Mundial de la Salud (OMS) e EAT-Lancet Commission on Food, Planet, Health sobre consumo de frutas, verduras y leguminosas, y sus cambios en el periodo de 2012-2022. Material y métodos. Se analizó información de 29 757 adultos >20 años, obtenida del cuestionario semicuantitativo de frecuencia de consumo de alimentos de las Encuestas Nacionales de Salud y Nutrición 2012-2022. Se estimó el consumo de frutas, verduras y leguminosas mediante modelos de regresión cuantílica y el porcentaje de población que cumplió las recomendaciones de consumo de la OMS y de una dieta de salud planetaria con modelos de regresión logit. Todos los modelos se ajustaron por covariables. RESULTADOS: De 2012 a 2020-2022, el consumo de frutas se mantuvo constante (113.5-131 g/día) y el de verduras incrementó (de 83 a 109 g/día), mientras que el consumo de leguminosas disminuyó (de 10 a 7.7 g/día). Se encontró bajo porcentaje de adultos (<40%) que cumplieron las recomendaciones, sobre todo de leguminosas (<1.5%), situación que se mantuvo constante a lo largo de los 10 años analizados. CONCLUSIONES: Existe una tendencia a la disminución en el consumo de leguminosas y el consumo de frutas y verduras sigue siendo bajo.

Sobrepeso, obesidad y consumo de azúcares en población escolar y adolescente de México. Ensanut 2020-2022.

OBJETIVO: Analizar la asociación de la contribución de los azúcares con sobrepeso y obesidad (Sp+Ob) en población escolar y adolescente. Material y métodos. En una muestra de 2 844 escolares y adolescentes de 5 a 19 años se determinó el estado de Sp+Ob según los patrones de crecimiento de la Organización Mundial de la Salud, así como el consumo de azúcares totales, añadidos e intrínsecos (%kcal/día) con información de un cuestionario de frecuencia de consumo de alimentos. Se estimó la probabilidad ajustada de presentar Sp+Ob mediante modelos de regresión logística con interacción entre el consumo de azúcares y la condición de bienestar. RESULTADOS: La prevalencia de Sp+Ob fue del 41% en la población de 5 a 19 años y más de 60% excedió el límite recomendado de consumo de azúcares añadidos del 10% de energía; las bebidas endulzadas fueron el grupo que más contribuyó a este consumo elevado. La probabilidad de presentar Sp+Ob a mayores consumos de azúcar añadido fue significativamente mayor en el tercil alto de condición de bienestar (0.59) vs. el bajo (0.30). CONCLUSIONES: El Sp+Ob y el consumo de azúcares añadidos son elevados en la población de 5 a 19 años en México. Se requiere fortalecer, focalizar y diversificar las estrategias de atención a estos problemas considerando las diferencias sociodemográficas de la población.

Diet cost and quality using the Healthy Eating Index-2015 in adults from urban and rural areas of Mexico.

OBJECTIVE: To assess the association between diet cost and quality by place of residence. DESIGN: We analysed cross-sectional data of the National Health and Nutrition Survey-2012. Diet cost was estimated by linking dietary data, obtained from a 7-d SFFQ, with municipality food prices, which were derived from a national expenditure survey. Diet quality was assessed using the Healthy Eating Index-2015 (HEI-2015). Association between quintiles of diet cost and HEI-2015 was assessed using linear regression analysis. SETTINGS: Mexico. PARTICIPANTS: 2438 adults (18-59 years). RESULTS: Diet cost was positively associated with diet quality (HEI-2015) in urban but not in rural areas. Compared with quintile (Q1) of cost, the increment in diet quality score was 1·17 (95 % CI -0·06, 4·33) for Q2, 2·14 (95 % CI -0·06, 4·33) for Q3, 4·70 (95 % CI 2·62, 6·79) for Q4 and 6·34 (95 % CI 4·20, 8·49) for Q5 (P-trend < 0·001). Individuals in rural v. urban areas on average have higher quality diets at lower cost with higher intakes of whole grains and beans and lower intakes of Na, added sugars and saturated fats. Living in the South, being indigenous and having low socio-economic status were also associated with higher quality diets. CONCLUSIONS: Diet cost was positively associated with diet quality, but only in urban areas. Further studies are needed to understand the relation between diet cost and quality in rural areas. To improve overall diet quality in Mexico, strategies that aim to reduce the cost of high-quality diets should consider the heterogeneity by place of residence.

Effect of a conditional cash transference program on food insecurity in Mexican households: 2012-2016.

OBJECTIVE: To estimate the effects of the social inclusion programme PROSPERA on food insecurity (FI) in Mexican households during 2012 and 2016. DESIGN: Quasi-experimental study using cross-sectional data from 2012 to 2016 National Household Income and Expenditure Survey - Socioeconomic Conditions Module (in Spanish, ENIGH-MCS). SETTING: Data were used from a 2012 sample of 56 888 Mexican households (representative of 31 206 819 households) and a 2016 sample of 70 263 Mexican households (representative of 33 445 353 households). Severity of FI was estimated with the Mexican Food Security Scale (in Spanish, EMSA). The statistical analysis estimated a differences in differences (DD) model weighted by propensity score to compare program beneficiary and non-beneficiary households in 2012 than in 2016. We estimated the effect on households with and without children (< 18 years of age). We also compared this model to a DD model without propensity score weighting. PARTICIPANTS: Mexican households. RESULTS: FI among all beneficiary households decreased 8·0pp as compared to non-beneficiary households over the study period. In beneficiary households with children, this decrease was 6·0pp and for beneficiary households without children, this decrease was 12·9pp (for all, P-value < 0·001). CONCLUSIONS: The PROSPERA program had a positive effect on FI reduction at the household level through increasing food access, which usually improves nutritional outcomes in vulnerable Mexican populations.

Antibody-mediated rejection: prevention, monitoring and treatment dilemmas.

PURPOSE OF REVIEW: Antibody-mediated rejection (AMR) has emerged as the leading cause of late graft loss in kidney transplant recipients. Donor-specific antibodies are an independent risk factor for AMR and graft loss. However, not all donor-specific antibodies are pathogenic. AMR treatment is heterogeneous due to the lack of robust trials to support clinical decisions. This review provides an overview and comments on practical but relevant dilemmas physicians experience in managing kidney transplant recipients with AMR. RECENT FINDINGS: Active AMR with donor-specific antibodies may be treated with plasmapheresis, intravenous immunoglobulin and corticosteroids with additional therapies considered on a case-by-case basis. On the contrary, no treatment has been shown to be effective against chronic active AMR. Various biomarkers and prediction models to assess the individual risk of graft failure and response to rejection treatment show promise. SUMMARY: The ability to personalize management for a given kidney transplant recipient and identify treatments that will improve their long-term outcome remains a critical unmet need. Earlier identification of AMR with noninvasive biomarkers and prediction models to assess the individual risk of graft failure should be considered. Enrolling patients with AMR in clinical trials to assess novel therapeutic agents is highly encouraged.

Performance of the Global Diet Quality Score with Nutrition and Health Outcomes in Mexico with 24-h Recall and FFQ Data.

BACKGROUND: The Global Diet Quality Score (GDQS) is intended as a simple global diet quality metric feasible in low- and middle-income countries facing the double burden of malnutrition. OBJECTIVE: The aim of this study was to evaluate the performance of the GDQS with markers of nutrient adequacy and chronic disease in nonpregnant nonlactating (NPNL) Mexican women of reproductive age and to compare it with the Alternate Healthy Eating Index-2010 (AHEI-2010) and the Minimum Dietary Diversity for Women (MDD-W). METHODS: We included NPNL women aged 15 to 49 y from the Mexican National Health and Nutrition Surveys (2012 and 2016) with 24-h recall (n = 2542) or a FFQ (n = 4975) (separate samples). We evaluated the correlation of the GDQS with the energy-adjusted intake of several nutrients and evaluated its association with health parameters using covariate-adjusted linear regression models. RESULTS: The GDQS was positively correlated with the intake of calcium, folate, iron, vitamin A, vitamin B-12, zinc, fiber, protein, and total fat (rho = 0.09 to 0.38, P < 0.05) and was inversely correlated with the intake of added sugar (rho = -0.37 and -0.38, P < 0.05) using both instruments, and with total fat, SFA, and MUFA only with 24-h recall data (rho = -0.06 to -0.16, P < 0.05). The GDQS was inversely associated with serum ferritin, BMI, waist circumference, and serum total and LDL cholesterol using FFQ data (P < 0.05), and was positively associated with serum folate using 24-h recall data (P < 0.05). Similar correlations and associations were observed with the MDD-W (only with micronutrients) and the AHEI-2010 (only with chronic disease-related nutrients and health markers). CONCLUSIONS: In comparison to other diet metrics, the GDQS can capture both dimensions of nutrient adequacy and health markers related to the risk of chronic disease. The performance of the GDQS was satisfactory with either 24-h recall or FFQ.

Factores asociados con el cambio en la inseguridad alimentaria en México: Ensanut 2012 y 2018-19.

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 Latinoameri-cana 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 co-cinar 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.

Inseguridad alimentaria y percepción de cambios en la alimentación en hogares mexicanos durante el confinamiento por la pandemia de Covid-19.

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. Resulta-dos. 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.

Magnitud y tendencia de la desnutrición y factores asociados con baja talla en niños menores de cinco años en México, Ensanut 2018-19.

Objetivos. 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 méto-dos. 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 <5 años presentó bajo peso, 14.2% baja talla y 1.4% emaciación. Entre 1988-2012 hubo un descenso en baja talla interrum-pido 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 cró-nica 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.

Sociodemographic factors associated with low intake of bioavailable iron in preschoolers: National Health and Nutrition Survey 2012, Mexico.

BACKGROUND: Children < 5 years of age are at risk of developing an iron deficiency due to a low intake of bioavailable iron (FeBio). Few studies have estimated dietary FeBio in children at a national level in relation to sociodemographic characteristics. This study aimed to estimate FeBio intake and its association with sociodemographic factors among Mexican children aged 12-59 months. METHODS: A cross-sectional study was carried out. Information on serum ferritin and diet was obtained from a national survey and representative sample of 1012 Mexican children aged 12-59 months. We used a 24-h recall to estimate total iron, heme and non-heme iron, vitamin C, phytates, calcium, and meat intake. We calculated FeBio intake using an algorithm. Differences in FeBio intake were analyzed by area of residence (rural/urban), country region (north, center, south), and socioeconomic status (SES), using linear regression models by age subgroups (12-23 and 24-59 months) and total population, while adjusting for study design. RESULTS: Total iron intake was 9.2 ± 6.7 mg/d. The estimated average of total FeBio fluctuated between 0.74-0.81 mg/d, with a bioavailability of 9.15-12.03% of total iron. Children aged 12-23 months residing in rural areas consumed less FeBio than those in urban areas (ß = - 0.276) (p < 0.05). Children aged 24-59 months with high SES consumed more FeBio (ß = 0.158 mg/d) than those of a low SES (p < 0.05). CONCLUSIONS: FeBio is low in Mexican preschoolers. Being from a rural area and having low SES were negatively associated with FeBio intake. These results can benefit interventions seeking to improve iron status.

Trends in the dietary patterns of Mexican adults by sociodemographic characteristics.

BACKGROUND: Sociodemographic characteristics are associated with the dietary patterns of populations. However, the direction of the association is not consistent among countries: it is contingent on the nutritional transition phase, level of economic development, cultural contexts and both the social and health policies prevailing in each country. The objective of this study was to identify the trends in dietary patterns observed in 2006, 2012 and 2016 among Mexican adults by sociodemographic characteristic. METHODS: To determine and compare dietary patterns, we performed a secondary analysis of dietary and sociodemographic data for adults 20-59 years old. Data were drawn from the 2006 and 2012 National Health and Nutrition Surveys (ENSANUTs) together with the 2016 Half-Way National Health and Nutrition Survey (ENSANUTMC). To estimate the dietary patterns, we used an adapted version of the Healthy Eating Index-2015 (HEI-2015) and a quantile-based regression model to compare the HEI medians by sociodemographic characteristic. RESULTS: From 2006 to 2016, the quality of the diet of Mexican adults scored under 50 points on a scale of 0 to 100, markedly below the maximum scores for the majority of HEI-2015 components. Diet quality varied according to age, sex, socioeconomic status (SES), area (urban/rural) and region of residence, with the highest quality observed among older individuals (within the 40-59 age group), women, people of lower SES and residents of rural areas, particularly in southern Mexico. Although this trend remained constant overall throughout 2006, 2012 and 2016, specific HEI-2015 components showed an opposite trend by sociodemographic strata. CONCLUSION: The diet quality of Mexican adults was suboptimal from 2006 to 2016, with notorious disparities persisting over time among sociodemographic strata. Our results can serve as a basis for formulating recommendations on ways to improve the population diet, where those components diverging the most from adequate scores could be highlighted in public-health messages.

[Association of a healthy and sustainable dietary index and overweight and obesity in Mexican adults]. / Asociación de un índice de dieta saludable y sostenible con sobrepeso y obesidad en adultos mexicanos.

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 sig-nificant 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.

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 es-timó 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 obesi-dad (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 implemen-tación a nivel poblacional.

Prevalence of inadequate intake of vitamins and minerals in the Mexican population correcting by nutrient retention factors, Ensanut 2016.

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: 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 under-estimated 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.

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%. CONCLUSIONES: . Se documenta la relevancia de la aplicación de FRN para la adecuada estimación de las prevalencias de inadecuación en estudios poblacionales.