Dietary intake of the Mexican population: comparing food group contribution to recommendations, 2012-2016.

OBJECTIVE: To estimate energy contribution (EC) of food groups in 2016, to compare consumption against Mexican Dietary Guidelines, and to examine changes in EC from 2012 to 2016. MATERIALS AND METHODS: We analyzed 24-hour dietary recalls from the 2012 and 2016 National Health and Nutrition Surveys (Ensanut). Foods and beverages were clas-sified into eight food groups: cereals, legumes, dairy, meats, fruit and vegetables, fats and oils, sugar-sweetened beverages, and high in saturated fat and added sugar (HSFAS) products. RESULTS: Cereals had the highest EC (30.1%), followed by meats (15.9%), HSFAS products (15.5%), and SSBs (10.5%). Fruits and vegetables, and legumes had the lowest contribu-tion with 6.4 and 3.8%, respectively. SSBs, meats, and HSFAS products were 250, 59 and 55% above the recommended intake, respectively. CONCLUSIONS: This analysis confirms the need to generate a food environment conducive to a healthier diet.

Dietary intake of the Mexican population: comparing food group contribution to recommendations, 2012-2016 / Ingesta dietética de la población mexicana: contribución de grupos de alimentos vs. recomendaciones, 2012-2016

Abstract: Objective: To estimate energy contribution (EC) of food groups in 2016, to compare consumption against Mexican Dietary Guidelines, and to examine changes in EC from 2012 to 2016. Materials and methods: We analyzed 24-hour dietary recalls from the 2012 and 2016 National Health and Nutrition Surveys (Ensanut). Foods and beverages were classified into eight food groups: cereals, legumes, dairy, meats, fruit and vegetables, fats and oils, sugar-sweetened beverages, and high in saturated fat and added sugar (HSFAS) products. Results: Cereals had the highest EC (30.1%), followed by meats (15.9%), HSFAS products (15.5%), and SSBs (10.5%). Fruits and vegetables, and legumes had the lowest contribution with 6.4 and 3.8%, respectively. SSBs, meats, and HSFAS products were 250, 59 and 55% above the recommended intake, respectively. Conclusions: This analysis confirms the need to generate a food environment conducive to a healthier diet.

Resumen: Objetivo: Estimar la contribución energética (CE) de grupos de alimentos al compararla con las Guías Alimentarias y examinar los cambios de 2012 a 2016. Material y métodos: Se analizaron recordatorios de 24 horas de las Encuestas Nacionales de Salud y Nutrición de 2012 y 2016. Los alimentos y bebidas se clasificaron en ocho grupos: cereales, leguminosas, lácteos, carnes, frutas y verduras, grasas, bebidas azucaradas, y productos altos en grasa saturada y/o azúcares añadidos. Resultados: Los cereales tuvieron la CE más alta (30.1%), seguidos por carnes (15.9%), productos altos en grasa saturada y azúcares añadidos (15.5%) y bebidas azucaradas (10.5%). Frutas y verduras y leguminosas tuvieron la menor CE con 6.4 y 3.8%, respectivamente. Las bebidas azucaradas, carnes y productos altos en grasa saturada y azúcares añadidos superaron en 250, 59 y 55% la recomendación, respectivamente. Conclusión: Este análisis confirma la necesidad de generar un ambiente alimentario que propicie una dieta más saludable.

Food and beverage industry interference in science and policy: efforts to block soda tax implementation in Mexico and prevent international diffusion.

Mexico is the largest soft drink market in the world, with high rates of obesity and type 2 diabetes. Due to strains on the nation's productivity and healthcare spending, Mexican lawmakers implemented one of the world's first public health taxes on sugar-sweetened beverages (SSBs) in 2014. Because Mexico's tax was designed to reduce SSB consumption, it faced strong opposition from transnational food and beverage corporations. We analysed previously secret internal industry documents from major corporations in the University of California San Francisco's Food Industry Documents Archive that shed light on the industry response to the Mexican soda tax. We also reviewed all available studies of the Mexican soda tax's effectiveness, contrasting the results of industry-funded and non-industry-funded studies. We found that food and beverage industry trade organisations and front groups paid scientists to produce research suggesting that the tax failed to achieve health benefits while harming the economy. These results were disseminated before non-industry-funded studies could be finalized in peer review. Mexico still provided a real-world context for the first independent peer-reviewed studies documenting the effectiveness of soda taxation-studies that were ultimately promoted by the global health community. We conclude that the case of the Mexican soda tax shows that industry resistance can persist well after new policies have become law as vested interests seek to roll back legislation, and to stall or prevent policy diffusion. It also underscores the decisive role that conflict-of-interest-free, peer-reviewed research can play in implementing health policy innovations.

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.

Prevalence of inadequate intake of vitamins and minerals in the Mexican population correcting by nutrient retention factors, Ensanut 2016 / Prevalencia de consumo inadecuado de vitaminas y minerales en población mexicana, corrigiendo por factores de retención de nutrimentos, Ensanut 2016

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.

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.

Dyslipidemia prevalence, awareness, treatment and control in Mexico: results of the Ensanut 2012.

OBJECTIVE: To describe in a national sample 1) the prevalence, awareness, treatment and control of dyslipidemias 2) the prevalence of dyslipidemias through previous national surveys. MATERIALS AND METHODS: We analyzed data of the National Health and Nutrition Survey 2012, a representative cross-sectional study. Serum samples of 9 566 adults ≥20 years old with fasting ≥8 hours were analyzed for lipid fractions. Age-adjusted prevalences were calculated, by sociodemographic variables. Prevalence of awareness, treatment and control was estimated. A description of the dyslipidemia prevalence reported in previous surveys is reported. RESULTS: Hypoalphalipoproteinemia and elevated LDL-C are the most prevalent dyslipidemias in Mexican adults. One in four adults had hypercholesterolemia at the moment of the interview without previous diagnosis. Awareness, treatment and control of dyslipidemia were 12.6, 3.7 and 3.1%, respec- tively. CONCLUSIONS: Dyslipidemias are the most prevalent risk factor for cardiovascular diseases in Mexico. Public policies to increase awareness, access to therapy and sustained control are urgently needed.

OBJETIVO: Describir en una muestra nacional 1) la prevalencia de dislipidemias, su diagnóstico previo, tratamiento y control, y 2) la prevalencia de dislipidemias en las encuestas previas. MATERIAL Y MÉTODOS: Se analizaron datos de la Encuesta Nacional de Salud y Nutrición 2012 con representatividad nacional. Se analizaron fracciones de lípidos séricos de 9 566 adultos ≥20 años con ayuno ≥8 horas. Se estimaron las prevalencias de dislipidemias, diagnóstico previo (DP), tratamiento y control, ajustadas por edad. Se presenta un análisis comparativo de las prevalencias de dislipidemias reportadas previamente. RESULTADOS: Las dislipidemias más prevalentes en adultos mexicanos fueron hipoalfalipoprotei- nemia y LDL-C elevado. Uno de cada cuatro adultos tenía hipercolesterolemia al momento de la entrevista, sin DP. El DP, tratamiento y control de dislipidemias fue de 12.6, 3.7 y 3.1%, respectivamente. CONCLUSIONES: Las dislipidemias son el factor de riesgo para enfermedades cardiovasculares más prevalente en adultos mexicanos. Se necesitan políticas públicas para incrementar el diagnóstico, acceso a terapia y control.

Dyslipidemia prevalence, awareness, treatment and control in Mexico: results of the Ensanut 2012 / Prevalencia de dislipidemias, diagnóstico previo, tratamiento y control: resultados de la Ensanut 2012

Abstract: Objective: To describe in a national sample 1) the prevalence, awareness, treatment and control of dyslipidemias 2) the prevalence of dyslipidemias through previous national surveys. Materials and methods: We analyzed data of the National Health and Nutrition Survey 2012, a representative cross-sectional study. Serum samples of 9 566 adults ≥20 years old with fasting ≥8 hours were analyzed for lipid fractions. Age-adjusted prevalences were calculated, by sociodemographic variables. Prevalence of awareness, treatment and control was estimated. A description of the dyslipidemia prevalence reported in previous surveys is reported. Results: Hypoalphalipoproteinemia and elevated LDL-C are the most prevalent dyslipidemias in Mexican adults. One in four adults had hypercholesterolemia at the moment of the interview without previous diagnosis. Awareness, treatment and control of dyslipidemia were 12.6, 3.7 and 3.1%, respectively. Conclusions: Dyslipidemias are the most prevalent risk factor for cardiovascular diseases in Mexico. Public policies to increase awareness, access to therapy and sustained control are urgently needed.

Resumen: Objetivo: Describir en una muestra nacional 1) la prevalencia de dislipidemias, su diagnóstico previo, tratamiento y control, y 2) la prevalencia de dislipidemias en las encuestas previas. Material y métodos: Se analizaron datos de la Encuesta Nacional de Salud y Nutrición 2012 con representatividad nacional. Se analizaron fracciones de lípidos séricos de 9 566 adultos ≥20 años con ayuno ≥8 horas. Se estimaron las prevalencias de dislipidemias, diagnóstico previo (DP), tratamiento y control, ajustadas por edad. Se presenta un análisis comparativo de las prevalencias de dislipidemias reportadas previamente. Resultados: Las dislipidemias más prevalentes en adultos mexicanos fueron hipoalfalipoproteinemia y LDL-C elevado. Uno de cada cuatro adultos tenía hipercolesterolemia al momento de la entrevista, sin DP. El DP, tratamiento y control de dislipidemias fue de 12.6, 3.7 y 3.1%, respectivamente. Conclusiones: Las dislipidemias son el factor de riesgo para enfermedades cardiovasculares más prevalente en adultos mexicanos. Se necesitan políticas públicas para incrementar el diagnóstico, acceso a terapia y control.

Attributable Burden and Expenditure of Cardiovascular Diseases and Associated Risk Factors in Mexico and other Selected Mega-Countries.

BACKGROUND: This paper describes the health and economic burden of cardiovascular diseases (CVD) in Mexico and other mega-countries through a review of literature and datasets. METHODS: Mega-countries with a low (Nigeria), middle (India), high (China/Brazil/Mexico), and very high (the U.S.A./Japan) human development index were included. The review was focused on prevalence of dyslipidemias and CVD economic impact and conducted according to the PRISMA statement. Public datasets of CVD indicators were explored. RESULTS: Heterogeneity in economic data and limited information on dyslipidemias were found. Hypertriglyceridemia and hypercholesterolemia were higher in Mexico compared with other countries. Higher contribution of dietary risk factors for cardiovascular mortality and greater probability of dying prematurely from CVD were observed in developing countries. From 1990-2016, a greater decrease in cardiovascular mortality in developed countries was registered. In 2015, a CVD expense equivalent to 4% of total health expenditure was reported in Mexico. CVD ranked first in health expenditures in almost all these nations and the economic burden will remain significant for decades to come. CONCLUSIONS: Resources should be assured to optimize CVD risk monitoring. Educational and medical models must be improved to enhance CVD diagnosis and the prescription and adherence to treatments. Long-term benefits could be attained by modifying the food system.

Cost-effectiveness of a fixed-dose combination pill for secondary prevention of cardiovascular disease in China, India, Mexico, Nigeria, and South Africa: a modelling study.

BACKGROUND: Fewer than 25% of patients with atherosclerotic cardiovascular disease in countries of low and middle income (LMICs) use guideline-directed drugs for secondary prevention. A fixed-dose combination polypill might improve cardiovascular outcomes by increasing prescription rates and adherence, but the cost-effectiveness of this approach is uncertain. METHODS: We developed microsimulation models to assess the cost-effectiveness of a polypill containing aspirin, lisinopril, atenolol, and simvastatin for secondary prevention of atherosclerotic cardiovascular disease compared with current care in China, India, Mexico, Nigeria, and South Africa. We modelled baseline use of secondary prevention drugs on the Prospective Urban Rural Epidemiological study. In the intervention arm, we assumed that patients currently prescribed any prevention drug for atherosclerotic cardiovascular disease would receive the polypill instead, which would improve adherence by 32% (from a meta-analysis of two randomised trials in LMICs). We assessed the cost-effectiveness of the polypill at prices in the public sector and on the retail market. Key outcomes were major adverse cardiovascular events (cardiovascular death, non-fatal myocardial infarction, or non-fatal stroke) over a 5-year period and the incremental cost-effectiveness ratio (ICER) from the perspective of the health-care sector and a lifetime analytical horizon. We assumed a cost-effectiveness threshold equal to each country's per capita gross domestic product (GDP) per disability-adjusted life-year (DALY) averted. In sensitivity analyses, we examined the population health effect achievable by increasing the uptake of the polypill in the eligible population. FINDINGS: Among adults aged 30-84 years with established atherosclerotic cardiovascular disease, adoption of the polypill for secondary prevention compared with current care was projected to avert 40-54 major adverse cardiovascular events for every 1000 patients treated for 5 years and produce between three and ten additional serious adverse events. Assuming public-sector pharmaceutical prices, the ICER of the polypill compared with current care over a lifetime analytical horizon was Int$168 (95% UI 55 to 337) per DALY averted in China, $154 (57 to 289) in India, $88 (15 to 193) in Mexico, $364 (147 to 692) in Nigeria, and $64 (cost-saving to 203) in South Africa, amounting to 0·4-6·2% of the per capita GDP in these countries. The ICER of the polypill compared with current care increased to 3·3-14·6% of the per capita GDP at retail market pharmaceutical prices. Use of the polypill at current rates of prescription of secondary prevention drugs would produce modest health benefits, reducing DALYs from atherosclerotic cardiovascular disease among patients with established disease by 3·1-10·1% over 10 years. Increasing use to 50% or 75% of the eligible population would produce substantially larger health gains (up to 24·3% atherosclerotic cardiovascular disease DALYs averted). INTERPRETATION: The polypill is projected to be cost-effective compared with current care for secondary prevention of atherosclerotic cardiovascular disease in China, India, Mexico, Nigeria, and South Africa, particularly if it is made available at public-sector pricing. However, achieving meaningful improvements in cardiovascular health will require simultaneous investments in health infrastructure to increase the uptake of the polypill among patients with established atherosclerotic cardiovascular disease. FUNDING: Richard A and Susan F Smith Center for Outcomes Research in Cardiology, Hellman Family Foundation, Department of Veterans Affairs, and University of California at San Francisco.

Hipertensión arterial en adultos mexicanos: prevalencia, diagnóstico y tipo de tratamiento. Ensanut MC 2016 / Hypertension in Mexican adults: prevalence, diagnosis and type of treatment. Ensanut MC 2016

Resumen: Objetivos: Describir la prevalencia de hipertensión arterial (HTA) en adultos, el porcentaje de ellos con diagnóstico previo y la proporción que tuvo un control adecuado. Material y métodos: Se midió la tensión arterial a 8 352 adultos que participaron en la Ensanut MC 2016. Se clasificó como hipertensos a quienes reportaron haber recibido previamente el diagnóstico de HTA, o presentaban cifras de tensión arterial sistólica (TAS) ≥140mmHg o tensión arterial diastólica (TAD) ≥90mmHg. Se consideró tensión arterial controlada cuando la TAS <140mmHg y la TAD <90mmHg. Resultados: La prevalencia de HTA en adultos fue de 25.5%, de los cuales, 40.0% desconocían tener HTA. De los hipertensos que tenían diagnóstico previo de HTA y que recibían tratamiento farmacológico (79.3%), 45.6% tuvo tensión arterial bajo control. Conclusiones: Un alto porcentaje de adultos desconocen tener HTA y de ellos casi la mitad tiene un control inadecuado. Debería evaluarse la pertinencia de los actuales programas de diagnóstico de HTA y la efectividad de sus estrategias de control.

Abstract: Objective: To describe the prevalence, awareness and proportion of adults with an adequate control of hypertension. Materials and methods: Blood pressure was measured at 8 352 adults who participated in the Ensanut MC 2016. The adults who reported having diagnosis of hypertension or had systolic blood pressure values (TAS) ≥140mmHg or diastolic blood pressure (TAD) ≥90mmHg were classified as hypertensive. Hypertension was considered controlled when blood pressure was TAS <140mmHg and TAD <90mmHg. Results: The prevalence of hypertension was 25.5%. Of these, 40.0% were unaware of having high blood pressure. Of the hypertensive adults who had previous diagnosis of hypertension and receiving drug treatment (79.3%), 45.6% had blood pressure under control. Conclusions: A high percentage of adults are unaware of having hypertension and nearly half have inadequate control. The relevance of current programmes for diagnosing hypertension should be assessed, as well as the effectiveness of their control strategies.

[Hypertension in Mexican adults: prevalence, diagnosis and type of treatment. Ensanut MC 2016.] / Hipertensión arterial en adultos mexicanos: prevalencia, diagnóstico y tipo de tratamiento. Ensanut MC 2016.

OBJECTIVE: To describe the prevalence, awareness and proportion of adults with an adequate control of hypertension. MATERIALS AND METHODS: Blood pressure was measured at 8 352 adults who participated in the Ensanut MC 2016. The adults who reported having diagnosis of hypertension or had systolic blood pressure values (TAS) ≥140mmHg or diastolic blood pressure (TAD) ≥90mmHg were classified as hypertensive. Hypertension was considered controlled when blood pressure was TAS <140mmHg and TAD <90mmHg. RESULTS: The prevalence of hypertension was 25.5%. Of these, 40.0% were unaware of having high blood pressure. Of the hypertensive adults who had previous diagnosis of hypertension and receiving drug treatment (79.3%), 45.6% had blood pressure under control. CONCLUSIONS: A high percentage of adults are unaware of having hypertension and nearly half have inadequate control. The relevance of current programmes for diagnosing hypertension should be assessed, as well as the effectiveness of their control strategies.

OBJETIVO: Describir la prevalencia de hipertensión arterial (HTA) en adultos, el porcentaje de ellos con diagnóstico previo y la proporción que tuvo un control adecuado. MATERIAL Y MÉTODOS: Se midió la tensión arterial a 8 352 adultos que participaron en la Ensanut MC 2016. Se clasificó como hipertensos a quienes reportaron haber recibido previamente el diagnóstico de HTA, o presentaban cifras de tensión arterial sistólica (TAS) ≥140mmHg o tensión arterial diastólica (TAD) ≥90mmHg. Se consideró tensión arterial controlada cuando la TAS <140mmHg y la TAD <90mmHg. RESULTADOS: La prevalencia de HTA en adultos fue de 25.5%, de los cuales, 40.0% desconocían tener HTA. De los hipertensos que tenían diagnóstico previo de HTA y que recibían tratamiento farmacológico (79.3%), 45.6% tuvo tensión arterial bajo control. CONCLUSIONES: Un alto porcentaje de adultos desconocen tener HTA y de ellos casi la mitad tiene un control inadecuado. Debería evaluarse la pertinencia de los actuales programas de diagnóstico de HTA y la efectividad de sus estrategias de control.

A Diabetic Retinopathy Screening Tool for Low-Income Adults in Mexico.

INTRODUCTION: A national diabetic retinopathy screening program does not exist in Mexico as of 2017. Our objective was to develop a screening tool based on a predictive model for early detection of diabetic retinopathy in a low-income population. METHODS: We analyzed biochemical, clinical, anthropometric, and sociodemographic information from 1,000 adults with diabetes in low-income communities in Mexico (from 11,468 adults recruited in 2014-2016). A comprehensive ophthalmologic evaluation was performed. We developed the screening tool through the following stages: 1) development of a theoretical predictive model, 2) performance assessment and validation of the model using cross-validation and the area under the receiver operating characteristic curve (AUC ROC), and 3) optimization of cut points for the classification of diabetic retinopathy. We identified points along the AUC ROC that minimized the misclassification cost function and considered various scenarios of misclassification costs and diabetic retinopathy prevalence. RESULTS: Time since diabetes diagnosis, high blood glucose levels, systolic hypertension, and physical inactivity were considered risk factors in our screening tool. The mean AUC ROC of our model was 0.780 (validation data set). The optimized cut point that best represented our study population (z = -0.640) had a sensitivity of 82.9% and a specificity of 61.9%. CONCLUSION: We developed a low-cost and easy-to-apply screening tool to detect people at high risk of diabetic retinopathy in Mexico. Although classification performance of our tool was acceptable (AUC ROC > 0.75), error rates (precision) depend on false-negative and false-positive rates. Therefore, confirmatory assessment of all cases is mandatory.

Dissonant health transition in the states of Mexico, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013.

BACKGROUND: Child and maternal health outcomes have notably improved in Mexico since 1990, whereas rising adult mortality rates defy traditional epidemiological transition models in which decreased death rates occur across all ages. These trends suggest Mexico is experiencing a more complex, dissonant health transition than historically observed. Enduring inequalities between states further emphasise the need for more detailed health assessments over time. The Global Burden of Diseases, Injuries, and Risk Factors Study 2013 (GBD 2013) provides the comprehensive, comparable framework through which such national and subnational analyses can occur. This study offers a state-level quantification of disease burden and risk factor attribution in Mexico for the first time. METHODS: We extracted data from GBD 2013 to assess mortality, causes of death, years of life lost (YLLs), years lived with disability (YLDs), disability-adjusted life-years (DALYs), and healthy life expectancy (HALE) in Mexico and its 32 states, along with eight comparator countries in the Americas. States were grouped by Marginalisation Index scores to compare subnational burden along a socioeconomic dimension. We split extracted data by state and applied GBD methods to generate estimates of burden, and attributable burden due to behavioural, metabolic, and environmental or occupational risks. We present results for 306 causes, 2337 sequelae, and 79 risk factors. FINDINGS: From 1990 to 2013, life expectancy from birth in Mexico increased by 3·4 years (95% uncertainty interval 3·1-3·8), from 72·1 years (71·8-72·3) to 75·5 years (75·3-75·7), and these gains were more pronounced in states with high marginalisation. Nationally, age-standardised death rates fell 13·3% (11·9-14·6%) since 1990, but state-level reductions for all-cause mortality varied and gaps between life expectancy and years lived in full health, as measured by HALE, widened in several states. Progress in women's life expectancy exceeded that of men, in whom negligible improvements were observed since 2000. For many states, this trend corresponded with rising YLL rates from interpersonal violence and chronic kidney disease. Nationally, age-standardised YLL rates for diarrhoeal diseases and protein-energy malnutrition markedly decreased, ranking Mexico well above comparator countries. However, amid Mexico's progress against communicable diseases, chronic kidney disease burden rapidly climbed, with age-standardised YLL and DALY rates increasing more than 130% by 2013. For women, DALY rates from breast cancer also increased since 1990, rising 12·1% (4·6-23·1%). In 2013, the leading five causes of DALYs were diabetes, ischaemic heart disease, chronic kidney disease, low back and neck pain, and depressive disorders; the latter three were not among the leading five causes in 1990, further underscoring Mexico's rapid epidemiological transition. Leading risk factors for disease burden in 1990, such as undernutrition, were replaced by high fasting plasma glucose and high body-mass index by 2013. Attributable burden due to dietary risks also increased, accounting for more than 10% of DALYs in 2013. INTERPRETATION: Mexico achieved sizeable reductions in burden due to several causes, such as diarrhoeal diseases, and risks factors, such as undernutrition and poor sanitation, which were mainly associated with maternal and child health interventions. Yet rising adult mortality rates from chronic kidney disease, diabetes, cirrhosis, and, since 2000, interpersonal violence drove deteriorating health outcomes, particularly in men. Although state inequalities from communicable diseases narrowed over time, non-communicable diseases and injury burdens varied markedly at local levels. The dissonance with which Mexico and its 32 states are experiencing epidemiological transitions might strain health-system responsiveness and performance, which stresses the importance of timely, evidence-informed health policies and programmes linked to the health needs of each state. FUNDING: Bill & Melinda Gates Foundation, Instituto Nacional de Salud Pública.

Usual Vitamin Intakes by Mexican Populations.

BACKGROUND: In the past several years, the consumption of high-energy, nutrient-poor foods has increased globally. Dietary intake data collected by the National Health and Nutrition Survey (ENSANUT) 2012 provide information to assess the quality of the Mexican diet and to guide food and nutrition policy. OBJECTIVE: The aim was to describe the usual intake and the prevalence of inadequate intakes of vitamins for the overall Mexican population and by subgroups defined by sex, age, region, urban or rural areas, and socioeconomic status (SES). METHODS: ENSANUT 2012 is a cross-sectional probabilistic survey representative of the Mexican population. Dietary information was collected by using the 24-h recall automated multiple-pass method (n = 10,096) with a repeated measurement on a subsample (n = 889) to permit adjustment for intraindividual variability with the use of the Iowa State University method. Mean usual intakes and the prevalence of inadequate intakes of thiamin, riboflavin, niacin, folate, and vitamins A, D, E, C, B-6, and B-12 were calculated for children aged 1-4 y (CH1-4y), children aged 5-11 y (CH5-11y), adolescents aged 12-19 y, and adults aged ≥20 y. RESULTS: In all of the age groups, prevalences of inadequate intakes of vitamins D and E were the highest (77-99% of adults and adolescents and 53-95% of CH5-11y and CH1-4y) and those of folate and vitamin A were intermediate (47-70% of adults and adolescents, 15-23% of CH5-11y and 8-13% of CH1-4y), whereas those of thiamin, riboflavin, niacin, and vitamins B-6, B-12, and C were the lowest (0-37% of adults, 1-27% of adolescents, and 0-2.4% of CH5-11y and CH1-4y). With few exceptions, the highest prevalences of inadequate intakes for vitamins were observed in the poorest populations (rural South region and the lowest tertile of SES). CONCLUSIONS: The intake of vitamins among Mexicans is inadequate overall. Information collected by ENSANUT can help target food assistance programs and develop strategies to prevent vitamin deficiencies.

Overview of the Dietary Intakes of the Mexican Population: Results from the National Health and Nutrition Survey 2012.

BACKGROUND: Mexico is facing the double burden of malnutrition: stunting and micronutrient deficiencies in young children, iron deficiency in pregnant women, and widespread obesity across age groups. OBJECTIVE: The aim was to summarize and discuss findings published in this supplement on dietary intakes and the eating habits of the Mexican population. METHODS: A 24-h recall questionnaire that used the multiple-pass method with a repeated measure in a fraction of the sample was applied in a nationally representative sample. We estimated mean intakes and percentages of inadequacy for macronutrients and micronutrients; mean intakes and percentages of the population who adhere to dietary recommendations for food groups; sources of added sugars; intakes of discretionary foods by mealtime, place, and activity; and mean dietary intakes in children <2 y old. RESULTS: Infant formula was consumed by almost half of infants aged <6 mo and sugar-sweetened beverages were consumed by two-thirds of children aged 12-23 mo. In the different age groups, a high proportion of the population had excessive intakes of added sugars (58-85%) and saturated fats (54-92%), whereas a high prevalence of insufficient intakes was found for fiber (65-87%), vitamin A (8-70%), folates (13-69%), calcium (26-88%), and iron (46-89%). Discretionary foods (nonbasic foods high in saturated fats and/or added sugars) contributed 26% of the population's total energy intake, whereas only 1-23% met recommendations for legumes, seafood, fruit, vegetables, and dairy foods. CONCLUSIONS: High proportions of Mexicans consume diets that do not meet recommendations. Breastfeeding and complementary feeding diverged from recommendations, intakes of discretionary foods were high, and the prevalence of nutrient inadequacies and age groups not meeting intake recommendations of basic food groups were also high. The results are consistent with the high prevalence of the double burden of malnutrition and are useful to design food and nutrition policies.

Cardiovascular diseases in mega-countries: the challenges of the nutrition, physical activity and epidemiologic transitions, and the double burden of disease.

PURPOSE OF REVIEW: There are today 11 mega-countries with more than 100 million inhabitants. Together these countries represent more than 60% of the world's population. All are facing noncommunicable chronic disease (NCD) epidemic where high cholesterol, obesity, diabetes, and cardiovascular diseases are becoming the main public health concerns. Most of these countries are facing the double burden of malnutrition where undernutrition and obesity coexist, increasing the complexity for policy design and implementation. The purpose of this study is to describe diverse sociodemographic characteristics of these countries and the challenges for prevention and control in the context of the nutrition transition. RECENT FINDINGS: Mega-countries are mostly low or middle-income and are facing important epidemiologic, nutrition, and physical activity transitions because of changes in food systems and unhealthy lifestyles. NCDs are responsible of two-thirds of the 57 million global deaths annually. Approximately, 80% of these are in low and middle-income countries. Only developed countries have been able to reduce mortality rates attributable to recognized risk factors for NCDs, in particular high cholesterol and blood pressure. SUMMARY: Mega-countries share common characteristics such as complex bureaucracies, internal ethnic, cultural and socioeconomic heterogeneity, and complexities to implement effective health promotion and education policies across population. Priorities for action must be identified and successful lessons and experiences should be carefully analyzed and replicated.

Global Overview of the Epidemiology of Atherosclerotic Cardiovascular Disease.

Atherosclerotic cardiovascular disease (ACD) is the leading cause of mortality worldwide. The objective of this paper is to provide an overview of the global burden of ACD and its risk factors and to discuss the main challenges and opportunities for prevention. Publicly available data from the Global Burden of Disease Study were analyzed for ischemic heart disease (IHD), ischemic stroke and ACD risk factors. Data from the WHO Global Health Observatory were used to describe prevalence of diverse cardiometabolic risk factors. World Bank Gross Domestic Product per capita (GDPc) information was used to categorize countries according to income level. Cardiovascular mortality decreased globally from 1990-2010 with important differences by GDPc; during 1990 there was a positive association between IHD mortality and GDPc. Higher-income countries had higher rates compared to those of lower-income countries. High levels of body mass index (BMI), blood pressure, glucose and cholesterol have a differential contribution to mortality by income group over time; high-income countries have been able to reduce the contribution from these risk factors in the last 20 years, whereas lower/middle income countries show an increasing trend in mortality attributable to high BMI and glucose. Although age-adjusted ACD mortality rate trends decreased globally, the absolute number of ACD deaths is increasing in part due to the growth of the population and aging, as well as to important lifestyle and food-system changes that likely attenuate gains in prevention. Population and individual level preventable causes of ACD must be aggressively and efficiently targeted in countries of lower economic development in order to reduce the growing burden of disease due to ACD.

The double burden of undernutrition and excess body weight in Mexico.

BACKGROUND: In Mexico, stunting and anemia have declined but are still high in some regions and subpopulations, whereas overweight and obesity have increased at alarming rates in all age and socioeconomic groups. OBJECTIVE: The objective was to describe the coexistence of stunting, anemia, and overweight and obesity at the national, household, and individual levels. DESIGN: We estimated national prevalences of and trends for stunting, anemia, and overweight and obesity in children aged <5 y and in school-aged children (5-11 y old) and anemia and overweight and obesity in women aged 20-49 y by using the National Health and Nutrition Surveys conducted in 1988, 1999, 2006, and 2012. With the use of the most recent data (2012), the double burden of malnutrition at the household level was estimated and defined as the coexistence of stunting in children aged <5 y and overweight or obesity in the mother. At the individual level, double burden was defined as concurrent stunting and overweight and obesity in children aged 5-11 y and concurrent anemia and overweight or obesity in children aged 5-11 y and in women. We also tested if the coexistence of the conditions corresponded to expected values, under the assumption of independent distributions of each condition. RESULTS: At the household level, the prevalence of concurrent stunting in children aged <5 y and overweight and obesity in mothers was 8.4%; at the individual level, prevalences were 1% for stunting and overweight or obesity and 2.9% for anemia and overweight or obesity in children aged 5-11 y and 7.6% for anemia and overweight or obesity in women. At the household and individual levels in children aged 5-11 y, prevalences of double burden were significantly lower than expected, whereas anemia and the prevalence of overweight or obesity in women were not different from that expected. CONCLUSIONS: Although some prevalences of double burden were lower than expected, assuming independent distributions of the 2 conditions, the coexistence of stunting, overweight or obesity, and anemia at the national, household, and intraindividual levels in Mexico calls for policies and programs to prevent the 3 conditions.