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Background Estimates of SARS-CoV-2 infection fatality rates (IFRs) in developing countries remain poorly characterized. Mexico has one of the highest reported COVID-19 case-fatality rates worldwide, although available estimates do not consider serologic assessment of prior exposure nor all SARS-CoV-2-related deaths. We aimed to estimate sex- and age-specific IFRs for SARS-CoV-2 in Mexico. Methods The total number of people in Mexico with evidence of prior SARS-CoV-2 infection was derived from National Survey of Health and Nutrition-COVID-19 (ENSANUT 2020 Covid-19)—a nationally representative serosurvey conducted from August to November 2020. COVID-19 mortality data matched to ENSANUT’s dates were retrieved from the death-certificate registry, which captures the majority of COVID-19 deaths in Mexico, and from the national surveillance system, which covers the subset of COVID-19 deaths that were identified by the health system and were confirmed through a positive polymerase chain reaction test. We analysed differences in IFRs by urbanization and region. Results The national SARS-CoV-2 IFR was 0.47% (95% CI 0.44, 0.50) using death certificates and 0.30% (95% CI 0.28, 0.33) using surveillance-based deaths. The IFR increased with age, being close to zero at age Conclusion After the first wave of the COVID-19 pandemic, the overall IFR in Mexico was comparable with those of European countries. The IFR in Mexico increased with age and was higher in men than in women. The variations in IFRs across regions and places of residence within the country suggest that structural factors related to population characteristics, pandemic containment and healthcare capabilities could have influenced lethality at the local level.

Objective. To estimate the willingness to vaccinate against Covid-19 (acceptance) in the Mexican population and to identify socioeconomic factors associated with vaccine hesitancy and refusal. Materials and methods. We estimated the acceptance, refusal and hesitancy proportions using data from the Covid-19 National Health and Nutrition Survey conducted from August to November 2020. Factors associated with refusal and hesitancy were explored using multinomial logistic regression. Results. Covid-19 vaccination acceptance was 62.3%, refusal 28.2% and hesitancy 9.5%. Refusal and hesitancy were associated with being female, having older age, lower educational level, lower socioeconomic status and working in the informal sector. Conclusion. National campaigns to incentivize vaccine acceptance need to consider specific subgroups were the likelihood of hesitancy and refusal is high. In Mexico, refusal and hesitancy were higher in vulnerable groups, and people at a higher risk of Covid-19 complications and death. (English) [ABSTRACT FROM AUTHOR] Objetivo. Estimar la aceptabilidad de la vacunacion contra Covid-19 en la poblacion mexicana e identificar factores socioeconomicos asociados con el rechazo o la duda. Material y metodos. Se estimo la proporcion de aceptabilidad, rechazo y duda utilizando los datos de la Encuesta Nacional de Salud y Nutricion 2020 sobre Covid-19 levantada durante agosto y noviembre de 2020. Se exploraron los factores asociados con rechazo y duda mediante un modelo de regresion multinomial. Resultados. La aceptabilidad de la vacunacion contra Covid-19 fue de 62.3%, el rechazo de 28.2% y la duda de 9.5%. El rechazo y la duda se asociaron con ser mujer, tener mayor edad, menor nivel de educacion, menor nivel socioeconomico y trabajar en el sector informal. Conclusion. Las campanas para incentivar la aceptabilidad de la vacuna necesitan considerar los subgrupos especificos con una alta proporcion de rechazo y duda. En Mexico observamos un mayor rechazo y duda en grupos con mayor riesgo de complicaciones y muerte por Covid-19. (Spanish) [ABSTRACT FROM AUTHOR] Copyright of Salud Publica de Mexico is the property of Instituto Nacional de Salud Publica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A major challenge for developing countries during the COVID-19 pandemic is affordable and adequate monitoring of disease progression and population exposure as the primary source relevant epidemiological indicators. Serology testing enables assessing population exposure and to guide vaccination strategies but requires rigorous accuracy validation before population-wide implementation. We adapted a two-step ELISA protocol as a single-step protocol for detection of IgG against the Receptor Binding Domain (RBD) of SARS-CoV-2 spike protein and compared its diagnostic accuracy with a commercial immunoassay anti-nucleoprotein IgG. Both methods yielded adequate and comparable diagnostic accuracy after 3 weeks post-symptom onset and were implemented in a nation-wide population based serological survey during August–November 2020. Anti-RBD National seroprevalence was 23.6%, 1.3% lower, but not significantly, than for anti-N. Double positive seroprevalence was 19.7%. Anti-N single-positive seroprevalence was 3.72% and anti-RBD single-positive seroprevalence was 1.98%. Discrepancies in the positivity to either single marker may be due to different kinetics of each antibody marker as well as the heterogeneity of the sampling time in regards to local epidemic waves. Baseline single positivity prevalence will be useful to assess the serological impact of vaccination and natural infection in further serosurveillance efforts.

Seroprevalence surveys provide estimates of the extent of SARS-CoV-2 infections in the population, regardless of disease severity and test availability. In Mexico in 2020, COVID-19 cases reached a maximum in July and December. We aimed to estimate the national and regional seroprevalence of SARS-CoV-2 antibodies across demographic and socioeconomic groups in Mexico after the first wave, from August to November 2020. We used nationally representative survey data including 9,640 blood samples. Seroprevalence was estimated by socioeconomic and demographic characteristics, adjusting by the sensitivity and specificity of the immunoassay test. The national seroprevalence of SARS-CoV-2 antibodies was 24.9% (95%CI 22.2, 26.7), being lower for adults 60 years and older. We found higher seroprevalence among urban and metropolitan areas, low socioeconomic status, low education and workers. Among seropositive people, 67.3% were asymptomatic. Social distancing, lockdown measures and vaccination programs need to consider that vulnerable groups are more exposed to the virus and unable to comply with lockdown measures., SARS-CoV-2 seroprevalence surveys provide estimates of the extent of prior infection in a population. In this nationally representative survey from Mexico, the authors estimate seroprevalence after the first epidemic wave at ~25%, with variation by region, age, socioeconomic status, and education level.

An excise tax of 1 peso per liter on sugar-sweetened beverages was implemented in Mexico in 2014. We estimated the cost-effectiveness of this tax and an alternative tax scenario of 2 pesos per liter. We developed a cohort simulation model calibrated for Mexico to project the impact of the tax over ten years. The current tax is projected to prevent 239,900 cases of obesity, 39 percent of which would be among children. It could also prevent 61,340 cases of diabetes, lead to gains of 55,300 quality-adjusted life-years, and avert 5,840 disability-adjusted life-years. The tax is estimated to save $3.98 per dollar spent on its implementation. Doubling the tax to 2 pesos per liter would nearly double the cost savings and health impact. Countries with comparable conditions could benefit from implementing a similar tax.

The aims of the present study were to compare the adherence to dietary guidelines and evaluate potential differences in nutrient profiles among adults by diabetes status. We used the Mexican Alternate Healthy Eating Index (MxAHEI) to evaluate adherence to dietary guidelines. We calculated the MxAHEI scores (total and by dietary component) with scales from 0 (non-adherence) to 100 (perfect adherence) based on a food frequency questionnaire. Mean daily intakes of macronutrients and micronutrients (g, mg, mcg/1000 kcal per day) were also estimated by diabetes status. Sex-specific, multivariable linear regression models were estimated to test whether MxAHEI scores as well as nutrient intakes were different by diabetes status. Mexican adults had low adherence to the dietary guidelines irrespective of their diabetes status (score &lt, 50 points). Among men, the MxAHEI score was 2.6 points higher among those with diabetes than those without diabetes (46.9, 95% confidence intervals (CI): 44.6, 49.2 vs. 44.3, 95% CI: 44.2, 45.6, respectively). Among women, the total MxAHEI score was similar in individuals with diabetes compared to those without diabetes. Lower intakes of carbohydrates and added sugars and higher intakes of protein, calcium, and zinc were observed in individuals with diabetes. Our findings support the development of strategies focused on promoting dietary patterns that can help to prevent and control the disease.

Background In October 2019, Mexico approved a law to establish that nonalcoholic beverages and packaged foods that exceed a threshold for added calories, sugars, fats, trans fat, or sodium should have an “excess of” warning label. We aimed to estimate the expected reduction in the obesity prevalence and obesity costs in Mexico by introducing warning labels, over 5 years, among adults under 60 years of age. Methods and findings Baseline intakes of beverages and snacks were obtained from the 2016 Mexican National Health and Nutrition Survey. The expected impact of labels on caloric intake was obtained from an experimental study, with a 10.5% caloric reduction for beverages and 3.0% caloric reduction for snacks. The caloric reduction was introduced into a dynamic model to estimate weight change. The model output was then used to estimate the expected changes in the prevalence of obesity and overweight. To predict obesity costs, we used the Health Ministry report of the impact of overweight and obesity in Mexico 1999–2023. We estimated a mean caloric reduction of 36.8 kcal/day/person (23.2 kcal/day from beverages and 13.6 kcal/day from snacks). Five years after implementation, this caloric reduction could reduce 1.68 kg and 4.98 percentage points (pp) in obesity (14.7%, with respect to baseline), which translates into a reduction of 1.3 million cases of obesity and a reduction of US$1.8 billion in direct and indirect costs. Our estimate is based on experimental evidence derived from warning labels as proposed in Canada, which include a single label and less restrictive limits to sugar, sodium, and saturated fats. Our estimates depend on various assumptions, such as the transportability of effect estimates from the experimental study to the Mexican population and that other factors that could influence weight and food and beverage consumption remain unchanged. Our results will need to be corroborated by future observational studies through the analysis of changes in sales, consumption, and body weight. Conclusions In this study, we estimated that warning labels may effectively reduce obesity and obesity-related costs. Mexico is following Chile, Peru, and Uruguay in implementing warning labels to processed foods, but other countries could benefit from this intervention., Tonatiuh Barrientos-Gutierrez and colleagues model the weight loss benefits from using warning labels on beverages and packaged foods., Author summary Why was this study done? In October 2019, the Mexican government approved new warning labels for packaged food and nonalcoholic beverages. Products that exceed a certain limit of calories, sugars, fats, trans fats, or sodium will now have a black octagon with an “excess of” label. Estimating the impact of these labels is necessary to translate this effort into expected reductions in intake and potential changes in body weight, obesity prevalence, and healthcare cost reductions. What did the researchers do and found? Adults in Mexico consume approximately 31% of their total energy intake from beverages and snacks. This study found that warning labels could reduce on average 36.8 kcal/person/day (23.2 kcal from beverages and 13.6 kcal from snacks). Using a mathematical model, we translated the expected caloric change into expected changes in body weight and obesity prevalence. Five years after the warning label implementation, obesity prevalence could be reduced by 14.7%, with respect to baseline, translating into 1.30 million cases of obesity reduced. Larger effects will be expected among males, young adults, and the middle and high socioeconomic status (SES) group. After five years, warning labels could save an estimated US$1.8 billion on obesity costs. Our model has some important limitations, such as using a Canadian estimate of the effect of warning labels. To capture a wider scope of effects, we used studies from Chile and Uruguay, which produced larger effects than the Canadian-based scenario. What do these findings mean? Warning labels have the potential to reduce the intake of nonessential high caloric food, reduce obesity, and lead to healthcare cost savings in Mexico. Warning labels could be considered by other countries with similar conditions, as part of their obesity control packages. These projections will need to be confirmed by future studies analyzing the change in food and beverage consumption and body weight after the implementation of the new warning labels.

The foundations for the growth and optimal development of every human being are laid in the first 2 years of life. Exclusive breastfeeding (EBF) up to 6 months of age and the introduction of complementary feeding (CF) from this age are considered the preventive interventions with the most significant impact on a child's life. The objective of this study was to determine if pediatricians base their recommendations by following the Guidelines for CF in Healthy Infants (GCFHI) and if mothers have any awareness and knowledge of these recommendations.Surveys based on the GCFHI were conducted in a group of mothers (n = 377) and pediatricians (n = 104) living in Mexico.Not all pediatricians recommended the EBF, and 76% recommended infant formula before 6 months of age. Regarding mothers, 76.9% practiced the EBF for the first 6 months. Vegetables were the leading starting food of CF suggested by pediatricians and mothers (87% and 91%, respectively), contrasting with food sources of iron (44%), which are the foods of choice according to the GCFHI. The practices performed by the mothers were statistically different from the recommendations of the pediatricians.The results reflect a lack of updating regarding CF. It is imperative to reinforce efforts to maintain the EBF for 6 months and to continue it together with the CF, as well as to promote the beginning of CF based on macro- and micro-nutrients.En los primeros dos años de vida se crean las bases para el crecimiento y desarrollo óptimo de todo ser humano. La lactancia materna exclusiva (LME) hasta los 6 meses de edad y la introducción de alimentación complementaria (AC) a partir de esta edad están consideradas como las intervenciones preventivas de mayor impacto en la vida de un niño. El presente trabajo evalúa en qué medida los pediatras basan sus recomendaciones en el Consenso para las prácticas de alimentación complementaria en lactantes sanos (CALCS) y si las madres están familiarizadas con estas recomendaciones.Se realizaron encuestas para madres (n = 377) y pediatras (n = 104) residentes en México basadas en el CALCS.: Se detectó que no todos los pediatras recomendaron la LME, y el 76% la complementa con sucedáneos de la leche materna antes de los 6 meses. El 76.9% de las madres practicaron la LME por 6 meses. Las verduras fueron el principal alimento de inicio de AC sugerido por pediatras y madres (87% y 91%, respectivamente), lo que contrasta con alimentos fuente de hierro (44%) que según el CALCS son los alimentos de elección. Las prácticas de las madres tuvieron diferencias significativas con las recomendaciones de los pediatras.Hay una falta de formación y actualización en esta materia. Es imperativo reforzar los esfuerzos para mantener la LME por 6 meses y continuarla junto con la AC, así como promover el inicio de la AC con base en los macro y micronutrientes.

To estimate the prevalence of total, diagnosed and undiagnosed diabetes, and the prevalence of poor glycemic control in Mexico, and its associated factors.Data from 3 700 adult participants were analysed in the 2016 National Health and Nutrition Survey. Diabetes prevalences were estimated with population weights, and the factors associated with total diabetes and poor glycemic control with Poisson regression models.The total prevalence of diabetes was 13.7% (9.5% diagnosed, 4.1% undiagnosed); 68.2% of people with diagnosed diabetes presented poor glycemic control. Longer disease duration, living in the centre or south of the country and being treated in pharmacies were associated with poor glycemic control. Being treated in a social security system was associated with better glycemic control.Multisectoral efforts are needed to strengthen screening, timely diagnosis and disease control, considering differences by region and type of health service.Estimar la prevalencia de diabetes (total, diagnosticada y no diagnosticada), de descontrol glucémico en México y sus factores asociados.Se analizaron 3 700 adultos participantes en la Encuesta Nacional de Salud y Nutrición de 2016. Se estimaron las prevalencias con ponderadores poblacionales y los factores asociados con diabetes total y descontrol glucémico con modelos de regresión de Poisson.La prevalencia total de diabetes fue de 13.7% (9.5% diagnosticada, 4.1% no diagnosticada); 68.2% de los diagnosticados presentó descontrol glucémico. Mayor tiempo de diagnóstico, vivir en el centro/sur del país y ser atendido en farmacias se asoció con descontrol glucémico, mientras que ser atendido en los servicios de seguridad social se asoció con mejor control glucémico.Se requieren esfuerzos multisectoriales para fortalecer el tamizaje, diagnóstico oportuno y control de la enfermedad, considerando las diferencias por región y tipo de servicio de salud.

Summary 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 Publica.

Adolescent pregnancy is associated with poor health and socioeconomic factors. The adolescent pregnancy rate in Mexico is the highest among the Organization for Economic Co-operation and Development (OECD) countries. We aimed to explore the factors associated with pregnancies and births in adolescent and young adult women. Using the 2015 Mexican National Survey of Boys, Girls, and Women (ENIM), we examined two dichotomous outcomes: “ever pregnant” and “being a mother” in women from 15 to 19 years and from 20 to 24 years without pregnancies during adolescence. We conducted bivariate analysis for each age group and used general linear models (GLM) to assess the association between the outcome variables and selected socioeconomic variables. Among adolescents, school attendance and tertiary education significantly decreased the likelihood of ever having been pregnant or being mothers, while being married/cohabiting increased the likelihood. Older age at first intercourse was negatively associated with ever having been pregnant. For adult women, in addition to school attendance, tertiary education, and being married/cohabiting, the region of residence also showed a significant association with ever having been pregnant. Similar socioeconomic factors were associated with pregnancy and motherhood between adolescents and young adults. However, it was found that delaying sexual debut could reduce the adolescent pregnancy rate. Our results highlight the importance of attending school and attaining tertiary education in reducing adolescent fertility rates. Resumen: El embarazo durante la adolescencia se asocia con una salud precaria y consecuencias socioeconómicas negativas. La tasa de embarazo adolescente en México es la más alta entre los países de la Organización para la Cooperación y el Desarrollo Económicos (OCDE). Nuestro objetivo fue explorar factores asociados a embarazos y nacimientos en mujeres adolescentes y adultas jóvenes. Utilizando la Encuesta Nacional de Niños, Niñas y Mujeres (ENIM), 2015, examinamos dos resultados dicotómicos: “embarazadas alguna vez” y “ser madre” en mujeres de 15 a 19 años y de 20 a 24 sin embarazos durante la adolescencia. Realizamos un análisis bivariado por grupo de edad y usamos modelos lineales generales (MLG) para evaluar la asociación entre el resultado de las variables y las variables socioeconómicas seleccionadas. Entre adolescentes, la asistencia escolar y contar con educación terciaria disminuía significativamente la posibilidad de haber estado embarazada o ser madres, mientras que estar casada/unida con alguien incrementó la posibilidad. Una edad más avanzada durante las relaciones sexuales estuvo negativamente asociada con haber estado alguna vez embarazada. Para las mujeres adultas, además de la asistencia escolar, educación terciaria, y estar casada/unida con alguien, la región de residencia también mostró una asociación significativa con haber estado alguna vez embarazada. Factores socioeconómicos similares estuvieron asociados con el embarazo y la maternidad entre adolescentes y adultos jóvenes. No obstante, se descubrió que retrasar el inicio de las relaciones sexuales podría reducir la tasa de embarazos adolescentes. Nuestros resultados subrayan la importancia de ir a la escuela y realizar estudios de nivel superior para reducir las tasas de fertilidad adolescentes. Resumo: A gravidez na adolescência está associada a desfechos socioeconômicos e de saúde ruins. A taxa de gravidez na adolescência do México é a mais alta entre os países da Organização para a Cooperação e Desenvolvimento Econômico (OCDE). Nosso objetivo foi explorar os fatores associados a gravidezes e partos em adolescentes e mulheres jovens. Usando o Inquérito Nacional de Meninos, Meninas e Mulheres (ENIM) de 2015, examinamos dois desfechos dicotômicos: “ter engravidado” e “ser mãe” em mulheres de 15 a 19 anos e de 20 a 24 anos sem gravidezes durante a adolescência. Realizamos uma análise bivariada para cada faixa etária e usamos modelos lineares generalizados (GLM) para avaliar a associação entre as variáveis de desfecho e variáveis socioeconômicas selecionadas. Entre adolescentes, a frequência escolar e a educação superior reduziram significativamente a probabilidade de ter engravidado ou ser mãe, enquanto ser casada ou morar com o parceiro aumentou essa probabilidade. Ter a primeira relação a uma idade mais avançada associou-se a uma menor prevalência de gravidez. Para mulheres adultas, além da frequência escolar, educação superior e ser casada/morar com o parceiro, a região da residência também teve uma associação significativa com ter estado alguma vez grávida engravidado. Fatores socioeconômicos similares estiveram associados à gravidez e maternidade entre adolescentes e jovens. Contudo, observou-se que adiar a iniciação sexual poderia reduzir a taxa de gravidez na adolescência. Nossos resultados assinalam a importância da frequência escolar e da obtenção da educação superior para a redução das taxas de fecundidade em adolescentes.

Background Several strategies have been proposed to reduce the intake of added sugars in the population. In Mexico, a 10% sugar-sweetened beverages (SSBs) tax was implemented in 2014, and the implementation of other nutritional policies, such as product reformulation to reduce added sugars, is under discussion. WHO recommends that all individuals consume less than 10% of their total energy intake (TEI) from added sugars. We propose gradually reducing added sugars in SSBs to achieve an average 10% consumption of added sugars in the Mexican population over 10 years and to estimate the expected impact of reformulation in adult body weight and obesity. Methods and findings Baseline consumption for added sugars and SSBs, sex, age, socioeconomic status (SES), height, and weight for Mexican adults were obtained from the 2012 Mexico National Health and Nutrition Survey (ENSANUT). On average, 12.6% of the TEI was contributed by added sugars; we defined a 50% reduction in added sugars in SSBs over 10 years as a reformulation target. Using a dynamic weight change model, sugar reductions were translated into individual expected changes in body weight assuming a 43% caloric compensation and a 2-year lag for the full effect of reformulation to occur. Results were stratified by sex, age, and SES. Twelve years after reformulation, the TEI from added sugars is expected to decrease to 10%, assuming no compensation from added sugars; 44% of the population would still be above WHO recommendations, requiring further sugar reductions to food. Body weight could be reduced by 1.3 kg (95% CI −1.4 to −1.2) in the adult population, and obesity could decrease 3.9 percentage points (pp; −12.5% relative to baseline). Our sensitivity analyses suggest that the impact of the intervention could vary from 0.12 kg after 6 months to 1.52 kg in the long term. Conclusions Reformulation to reduce added sugars in SSBs could produce large reductions in sugar consumption and obesity in the Mexican adult population. This study is limited by the use of a single dietary recall and by data collected in all seasons except summer; still, these limitations should lead to conservative estimates of the reformulation effect. Reformulation success could depend on government enforcement and industry and consumer response, for which further research and evidence are needed., Tonatiuh Barrientos-Gutiérrez and colleagues use a weight reduction model to estimate individual level weight reductions 12 years after the introduction of the 2012 Mexican sugar tax., Author summary Why was this study done? High sugar intake is associated with obesity. Adults in Mexico consume 12.6% of their everyday energy intake from added sugars, exceeding WHO recommendations (

To compare the prevalence of previously diagnosed diabetes in 2016 with previous national surveys and to describe treatment and its complications.Mexico's national surveys Ensa 2000, Ensanut 2006, 2012 and 2016 were used. For 2016, logistic regression models and measures of central tendency and dispersion were obtained.The prevalence of previously diagnosed diabetes in 2016 was 9.4%. The increase of 2.2% relative to 2012 was not significant and only observed in patients older than 60 years. While preventive measures have increased, the access to medical treatment and lifestyle has not changed. The treatment has been modified, with an increase in insulin and decrease in hypoglycaemic agents.Population aging, lack of screening actions and the increase in diabetes complications will lead to an increase on the burden of disease. Policy measures targeting primary and secondary prevention of diabetes are crucial.Comparar la prevalencia de diabetes por diagnóstico médico previo en 2016 con encuestas nacionales anteriores y describir su tratamiento y complicaciones.Se utilizaron la Encuesta Nacional de Salud 2000, las Encuestas Nacionales de Salud y Nutrición 2006 y 20012, y la Encuesta Nacional de Salud y Nutrición de Medio Camino 2016. Para 2016 se obtuvieron modelos de regresión logística, así como medidas de tendencia central y dispersión.La prevalencia de diabetes por diagnóstico médico en 2016 fue de 9.4%. El incremento de 2.2% respecto a 2012 no fue significativo y se observó únicamente en los mayores de 60 años. Aunque las acciones preventivas han aumentado, el acceso al tratamiento médico y los estilos de vida no han mejorado. Se observó un aumento en insulina y una diminución en hipoglucemiantes.El envejecimiento de la población, la insuficiencia de acciones de tamizaje y el aumento en las complicaciones de diabetes provocarán un aumento en la carga de enfermedad. Invertir en la prevención primaria y secundaria en diabetes es crucial.

Objective Outdoor smoking bans have been implemented to reduce secondhand smoke exposure and cigarette littering. We aimed to explore outdoor smoking behaviours, cigarette littering, and support towards a recently enacted outdoor smoking ban in Baja California, Mexico. Methods From October 2013 to April 2014 a representative sample of 800 adults from urban areas of Baja California was surveyed to obtain information on demographics, smoking status, opinion towards outdoor smoking bans in general and in specific locations, and perceptions and habits regarding cigarette littering. Descriptive statistics and Poisson regression analyses were conducted to estimate prevalence ratios and corresponding 95% CI taking into account the complex survey design. Results Outdoor smoking was frequently observed, as 86.8% of the population reported having seen people smoking in parks and beaches and 94.4% in open venues such as concerts or stadiums. A smoking ban in all outdoor areas was supported by 71.8% of Baja California residents. Site-specific support ranged from 80% (stadiums) to 89% (public parks). Support for the ban was higher among never and ex-smokers than in current smokers. Cigarette littering was negatively perceived by 98% of the participants, yet 45% of all cigarettes smoked were thrown on the ground. Based on cigarette consumption and butt littering reported in the survey, we estimated that 27 million cigarette butts become litter every month in urban areas of Baja California. Conclusions Outdoor smoking is still frequent in outdoor areas where people gather, and an important source of littering. We found substantial public support towards the outdoor smoking ban, which should translate into easier implementation and compliance in Baja California, Mexico.