The marginalization index and its association with selected services within the comprehensive care offered to breast cancer patients.

PURPOSE: There is little information on the supportive care offered to breast cancer patients. We investigated the association between the marginalization index and selected services offered by health professionals. METHODS: We used data from a cross-sectional parent study performed in Mexico from 2007 to 2009. We analyzed data from 832 women between 35 and 69 years of age with a histopathological diagnosis of breast cancer. This study was performed in hospitals in 5 states. We used frequencies, measures of central tendency, and logistic regression. We used the svy package of STATA statistical software v17. RESULTS: Overall, 15.6% of the study population reported that health professionals offered them selected services. The offer of two or more selected services was greater among women living in states with a very high marginalization index (21.8%) than among those living in states with a very low marginalization index (13.8%). Among women living in states with high marginalization, the odds of receiving a selected service offer were 2.03 times higher than those living in states with low marginalization (Odds ratio (OR) = 2.03, 95% CI 1.08-3.83). For women in the highest tertile of the asset index, the odds of receiving a selected service offer were 2.7 times greater than the odds for women in the lowest tertile (OR = 2.66, 95% CI 1.03-6.88). CONCLUSION: The prevalence of comprehensive care offered to breast cancer patients is low in Mexico and varies according to the marginalization index and the asset index.

Sugar-Sweetened Beverages Consumption and Breast Cancer in Premenopausal and Postmenopausal Women.

BACKGROUND: The consumption of sugar-sweetened beverages (SSB), of which Mexico is a large consumer, has been associated with the risk of breast cancer. We assessed the association between SSBs consumption and breast cancer risk in pre- and postmenopausal women. METHODS: We performed a multicenter population-based case-control study in Mexico City, Monterrey, and Veracruz. We recruited 1,000 cases and 1,074 controls; all participants were pre- or postmenopausal women between 35 and 69 years of age. Diet before symptoms onset was assessed using a food frequency questionnaire. We conducted a multivariable-adjusted conditional logistic regression analysis stratified by menopausal status. RESULTS: For premenopausal women, after adjusting for matching characteristics, total energy intake and all potential confounders, the odds of having breast cancer in women who drank one or more SSBs servings per day showed 1.78 times the odds of those who drank one or fewer SSBs servings per month [OR = 1.78; 95% confidence interval (CI), 1.06-3.01]. For postmenopausal women, the corresponding model was not statistically significant (OR = 1.38, 95% CI, 0.84-2.25). We also observed higher consumption of SSBs among pre- than in postmenopausal women (23.3% and 17.4%, respectively among controls in the highest consumption category (≥1 per day). CONCLUSIONS: Our results suggest that SSBs consumption increases the risk of developing breast cancer, particularly in premenopausal women. IMPACT: Given the consumption of SSBs, of which Mexico is a large consumer, these results can support public policies to discourage the consumption of SSBs.

The effect of the number of biopsies on the delay in the time from the delivery of mammography results to breast cancer histopathological diagnosis.

PURPOSE: The delay in the time (in calendar days) from the delivery of mammography results to histopathological breast cancer (BC) diagnosis could be associated with more advanced clinical stages, a worse prognosis and higher mortality. Therefore, we assessed the association between the number of biopsies and the delay in the time (in calendar days) from the delivery of mammography results to histopathological BC. METHODS: A survey was performed on 563 women aged between 35 and 69 years with histopathologically confirmed BC who attended 11 Mexican hospitals. RESULTS: After adjusting for potential confounders, the odds of having a delay in the time (in calendar days) from the delivery of mammography results to histopathological BC diagnosis (≥ 60 days) among women with ≥ 3 biopsies were 2.99 times the odds of those who had only one biopsy (95% CI 1.35, 6.63). CONCLUSION: The number of biopsies should be considered as a predictor of the time delay between the delivery of the mammography result and the diagnostic result.

Inflammatory biomarkers and risk of breast cancer among young women in Latin America: a case-control study.

BACKGROUND: Breast cancer incidence is increasing rapidly in Latin America, with a higher proportion of cases among young women than in developed countries. Studies have linked inflammation to breast cancer development, but data is limited in premenopausal women, especially in Latin America. METHODS: We investigated the associations between serum biomarkers of chronic inflammation (interleukin (IL)-6, IL-8, IL-10, tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), leptin, adiponectin) and risk of premenopausal breast cancer among 453 cases and 453 matched, population-based controls from Chile, Colombia, Costa Rica, and Mexico. Odds ratios (OR) were estimated using conditional logistic regression models. Analyses were stratified by size and hormonal receptor status of the tumors. RESULTS: IL-6 (ORper standard deviation (SD) = 1.33 (1.11-1.60)) and TNF-α (ORper SD = 1.32 (1.11-1.58)) were positively associated with breast cancer risk in fully adjusted models. Evidence of heterogeneity by estrogen receptor (ER) status was observed for IL-8 (P-homogeneity = 0.05), with a positive association in ER-negative tumors only. IL-8 (P-homogeneity = 0.06) and TNF-α (P-homogeneity = 0.003) were positively associated with risk in the largest tumors, while for leptin (P-homogeneity = 0.003) a positive association was observed for the smallest tumors only. CONCLUSIONS: The results of this study support the implication of chronic inflammation in breast cancer risk in young women in Latin America. Largest studies of prospective design are needed to confirm these findings in premenopausal women.

Consumption of industrial processed foods and risk of premenopausal breast cancer among Latin American women: the PRECAMA study.

Ultra-processed food intake has been linked to an increased risk of breast cancer in Western populations. No data are available in the Latin American population although the consumption of ultra-processed foods is increasing rapidly in this region. We evaluated the association of ultra-processed food intake to breast cancer risk in a case-control study including 525 cases (women aged 20-45 years) and 525 matched population-based controls from Chile, Colombia, Costa Rica and Mexico. The degree of processing of foods was classified according to the NOVA classification. Overall, the major contributors to ultra-processed food intake were ready-to-eat/heat foods (18.2%), cakes and desserts (16.7%), carbonated and industrial fruit juice beverages (16.7%), breakfast cereals (12.9%), sausages and reconstituted meat products (12.1%), industrial bread (6.1%), dairy products and derivatives (7.6%) and package savoury snacks (6.1%). Ultra-processed food intake was positively associated with the risk of breast cancer in adjusted models (OR T3-T1=1.93; 95% CI=1.11 to 3.35). Specifically, a higher risk was observed with oestrogen receptor positive breast cancer (ORT3-T1=2.44, (95% CI=1.01 to 5.90, P-trend=0.049), while no significant association was observed with oestrogen receptor negative breast cancer (ORT3-T1=1.87, 95% CI=0.43 to 8.13, P-trend=0.36). Our findings suggest that the consumption of ultra-processed foods might increase the risk of breast cancer in young women in Latin America. Further studies should confirm these findings and disentangle specific mechanisms relating ultra-processed food intake and carcinogenic processes in the breast.

Energy homeostasis genes modify the association between serum concentrations of IGF-1 and IGFBP-3 and breast cancer risk.

Breast cancer is a multifactorial disease in which the interplay among multiple risk factors remains unclear. Energy homeostasis genes play an important role in carcinogenesis and their interactions with the serum concentrations of IGF-1 and IGFBP-3 on the risk of breast cancer have not yet been investigated. The aim of this study was to assess the modifying effect of the genetic variation in some energy homeostasis genes on the association of serum concentrations of IGF-1 and IGFBP-3 with breast cancer risk. We analyzed 78 SNPs from 10 energy homeostasis genes in premenopausal women from the 4-Corner's Breast Cancer Study (61 cases and 155 controls) and the Mexico Breast Cancer Study (204 cases and 282 controls). After data harmonization, 71 SNPs in HWE were included for interaction analysis. Two SNPs in two genes (MBOAT rs13272159 and NPY rs16131) showed an effect modification on the association between IGF-1 serum concentration and breast cancer risk (Pinteraction < 0.05, adjusted Pinteraction < 0.20). In addition, five SNPs in three genes (ADIPOQ rs182052, rs822391 and rs7649121, CARTPT rs3846659, and LEPR rs12059300) had an effect modification on the association between IGFBP-3 serum concentration and breast cancer risk (Pinteraction < 0.05, adjusted Pinteraction < 0.20). Our findings showed that variants of energy homeostasis genes modified the association between the IGF-1 or IGFBP-3 serum concentration and breast cancer risk in premenopausal women. These findings contribute to a better understanding of this multifactorial pathology.

Operation of research ethics committees in Colombia, Costa Rica, Guatemala, and Mexico: Mesoamerican Project / Funcionamiento de los comités de ética en investigación en Colombia, Costa Rica, Guatemala y México: Proyecto Mesoamericano

Abstract: Objective: To attain a better understanding of the structure and processes of Research Ethics Committees (REC) in the low-and middle-income countries of the Mesoamerican region. The objectives are knowing the operational practices of the RECs regarding project evaluation, training needs, and infrastructure. Materials and methods: The REC training and needs assessment involved an online survey of all the RECs (n=55) identified in Colombia (n=11), Costa Rica (n=5), Guatemala (n=5), and Mexico (n=34). Results: Participants reported inadequate infrastructure for its proper operation (only 49.1 %, or 27/55, have an exclusive office to safeguard files); insufficient administrative staff (47.3%, 26/55), or financial resources to conduct active site monitoring (85.6%, 47/55) to ensure the protection of rights and welfare of study participants. Conclusions: Investments in REC member training and infrastructure are needed to ensure compliance of REC evaluations with the standards for ethical conduct of research.

Resumen: Objetivo: Comprender la estructura y procesos de los Comités de Ética en Investigación (CEI) en países mesoamericanos de ingresos bajos y medios. Conocer las prácticas operativas en evaluación de proyectos, necesidades de capacitación e infraestructura. Material y métodos: Encuesta en línea para evaluar necesidades de capacitación de los CEI (n=55) identificados en Colombia (n=11), Costa Rica (n=5), Guatemala (n=5) y México (n=34). Resultados: Los participantes reportaron una infraestructura inadecuada para su correcto funcionamiento (oficina exclusiva para archivos 49.1%, 27/55); personal administrativo insuficiente (47.3%, 26/55), recursos financieros insuficientes para monitoreo del sitio (85.6%, 47/55), para garantizar protección de derechos y bienestar de los participantes. Conclusiones: Se necesita invertir en capacitación de los miembros e infraestructura del CEI, para garantizar la conducción ética de la investigación.

Patient and treatment delays among Mexican women with breast cancer before and after the Seguro Popular / Retrasos del paciente y del tratamiento en mujeres mexicanas con cáncer de mama antes y después del Seguro Popular

Abstract: Objective: To assess whether the Catastrophic Health Expenditures Fund (FPGC, Spanish acronym) was associated with delays in seeking medical care and in starting treatment. Materials and methods: We conducted a before and after cross-sectional study. We included 266 women with breast cancer (BC) diagnosis treated during the last three years before the hospitals received the FPGC and 309 women treated in the following three years after the fund was received by the accredited hospitals. Results: After adjusting for potential confounders, we found no association between the FPGC and delay in seeking medical care or between the FPGC and the treatment delay. Conclusions: The FPGC initiative reduced neither the delay in seeking breast cancer medical care for breast cancer nor the treatment delay.

Resumen: Objetivo: Evaluar si el Fondo de Protección contra Gastos Catastróficos en Salud (FPGC) se asoció con retrasos en la búsqueda de atención médica e inicio del tratamiento. Material y métodos: Estudio transversal antes y después, que incluyó 266 mujeres con diagnóstico de cáncer de mama (CM) tratadas durante los últimos tres años previos a que los hospitales recibieran el FPGC y 309 mujeres tratadas en los siguientes tres años posteriores a que los hospitales recibieran el fondo. Resultados: El FPGC no se asoció con el retraso en la búsqueda de atención médica ni con el retraso del inicio del tratamiento. Conclusiones: El FPGC no redujo el retraso en la búsqueda de atención médica por CM ni el retraso del inicio del tratamiento.

Towards a unified curriculum system based on a public health holistic approach. Renovation of the academic programs at the School of Public Health of Mexico.

Public health training cannot be practiced in isolation, but rather within the framework of substantive conceptual visions, the organizational structure and teaching culture in a broad sense. The School of Public Health of Mexico (ESPM), in the mist of its 100th anniversary, is implementing an educational restructure with the guidance of conceptual and ethical principles. The restructure of the academic pro-grams will follow a constructivist pedagogical model, based on renewed institutional practices that integrates research, teaching and community outreach, making for truly transfor-mative learning. The new design of the whole structure of its academic programs has the objetive of making them flexible, less technical-based but more practical, and a within an uni-fied curricular system that articulates and allows continuity between master's degrees and doctorates programs. In the new structure, the curriculum will have a common core for all the academic programs, emerging from the study of the essential bases of public health, human rights, including gender and social perspectives, principles of global health, ethics of public health practice, environmental and animal health inferences and community outreach in the form of social retribution. The Institute's research groups will be the functional units for investigation and teaching, thus students will be integrated into these at an early stage, under the guidance of a tutor. In this context, the requirements for a comprehensive, unifying and at the same time flexible cur-riculum will support training of Public Health with a holistic approach. The current programs were analyzed including the review of their courses, regarding the pertinence of their contents and proposed competencies. We present herein a description of these observations, and propose a new com-mon core (conceptual-operative) with compulsory courses as the base for all programs. The participation of all academic bodies in reviewing the proposed new common core, as well as the syllabus and courses, identified those that are essential in each program's study concentration area, is indicated.

Operation of research ethics committees in Colombia, Costa Rica, Guatemala, and Mexico: Mesoamerican Project.

OBJECTIVE: To attain a better understanding of the structure and processes of Research Ethics Committees (REC) in the low-and middle-income countries of the Mesoamerican region. The objectives are knowing the operational practices of the RECs regarding project evaluation, training needs, and infrastructure. MATERIALS AND METHODS: The REC training and needs assessment involved an online survey of all the RECs (n=55) identified in Colombia (n=11), Costa Rica (n=5), Guatemala (n=5), and Mexico (n=34). RESULTS: Participants reported inadequate infrastructure for its proper operation (only 49.1 %, or 27/55, have an exclusive office to safeguard files); insufficient administrative staff (47.3%, 26/55), or financial resources to conduct active site monitoring (85.6%, 47/55) to ensure the protection of rights and welfare of study participants. CONCLUSIONS: Investments in REC member training and infrastructure are needed to ensure compliance of REC evaluations with the standards for ethical conduct of research.

Patient and treatment delays among Mexican women with breast cancer before and after the Seguro Popular.

OBJECTIVE: To assess whether the Catastrophic Health Expenditures Fund (FPGC, Spanish acronym) was associated with delays in seeking medical care and in starting treatment. MATERIALS AND METHODS: We conducted a before and after cross-sectional study. We included 266 women with breast cancer (BC) diagnosis treated during the last three years before the hospitals received the FPGC and 309 wo-men treated in the following three years after the fund was received by the accredited hospitals. RESULTS: After adjusting for potential confounders, we found no association between the FPGC and delay in seeking medical care or between the FPGC and the treatment delay. CONCLUSIONS: The FPGC initiative reduced neither the delay in seeking breast cancer medical care for breast cancer nor the treatment delay.

Communication patterns in the doctor-patient relationship: evaluating determinants associated with low paternalism in Mexico.

BACKGROUND: Paternalism/overprotection limits communication between healthcare professionals and patients and does not promote shared therapeutic decision-making. In the global north, communication patterns have been regulated to promote autonomy, whereas in the global south, they reflect the physician's personal choices. The goal of this study was to contribute to knowledge on the communication patterns used in clinical practice in Mexico and to identify the determinants that favour a doctor-patient relationship characterized by low paternalism/autonomy. METHODS: A self-report study on communication patterns in a sample of 761 mental healthcare professionals in Central and Western Mexico was conducted. Multiple ordinal logistic regression models were used to analyse paternalism and associated factors. RESULTS: A high prevalence (68.7% [95% CI 60.0-70.5]) of paternalism was observed among mental health professionals in Mexico. The main determinants of low paternalism/autonomy were medical specialty (OR 1.67 [95% CI 1.16-2.40]) and gender, with female physicians being more likely to explicitly share diagnoses and therapeutic strategies with patients and their families (OR 1.57 [95% CI 1.11-2.22]). A pattern of highly explicit communication was strongly associated with low paternalism/autonomy (OR 12.13 [95% CI 7.71-19.05]). Finally, a modifying effect of age strata on the association between communication pattern or specialty and low paternalism/autonomy was observed. CONCLUSIONS: Among mental health professionals in Mexico, high paternalism prevailed. Gender, specialty, and a pattern of open communication were closely associated with low paternalism/autonomy. Strengthening health professionals' competencies and promoting explicit communication could contribute to the transition towards more autonomist communication in clinical practice in Mexico. The ethical implications will need to be resolved in the near future.

[Open communication between mental health professionals and parents of patients with intellectual disabilities]. / Comunicación abierta entre profesionales de la salud mental y padres de pacientes con discapacidad intelectual.

OBJECTIVE: To estimate the factors associated with open communication between mental health professionals and parents of patients with intellectual disabilities and other neurodevelopmental disorders. MATERIALS AND METHODS: Cross-sectional survey in 759 mental health professionals. The association between the pattern of open communication and the attributes of communication was estimated through a logistic, ordinal, multivariate model. RESULTS: The prevalence of the pattern of open communication in mental health professionals was 30.6% (95%CI 27.4-34.0). The associated factors were younger age (RM=2.42, 95% CI 1.57-3.75), specialty (RM= 1.56, 95%CI 1.09-2.23), high value to the truth (RM= 4.95, 95% CI 3.21-7.65), low paternalism (RM= 10.93, 95%CI 7.22-16.52) and courses in bioethics (RM= 1.45, 95%CI 1.01-2.09), adjusted for confusing variables. CONCLUSIONS: Mental health professionals reported low levels of open com-munication with parents of people with neurovelopmental disorders, so prioritizing the value to the truth, promoting less paternalism, and respecting the autonomy of patients, can contribute to changing these patterns of communication in clinical practice in Mexico.

OBJETIVO: Estimar los factores asociados con la comunicación abierta entre profesionales de la salud mental y padres de pacientes con discapacidad intelectual y otros trastornos del neurodesarrollo. MATERIAL Y MÉTODOS: Encuesta transversal en 759 profesionales de la salud mental. Se estimó la asociación entre el patrón de comunicación abierto y los atributos de la comunicación a través de un modelo logísti-co, ordinal y multivariado. RESULTADOS: La prevalencia del patrón de comunicación abierta en profesionales de la salud mental fue de 30.6% (IC95% 27.4-34.0). Los factores asocia-dos fueron menor edad (RM=2.42, IC95% 1.57-3.75), espe-cialidad (RM=1.56, IC95% 1.09-2.23), alto valor a la verdad (RM=4.95, IC95% 3.21-7.65), bajo paternalismo (RM=10.93, IC95% 7.22-16.52) y cursos de bioética (RM=1.45, IC95% 1.01-2.09), ajustando por variables confusoras. CONCLUSIONES: Los profesionales de la salud mental reportaron bajos niveles de comunicación abierta con los padres de personas con trastornos del neurodesarrollo, por lo que priorizar el valor a la verdad, promover un menor paternalismo y el respeto a la autonomía de los pacientes puede contribuir a cambiar estos patrones de comunicación en la práctica clínica en México.

[Knowledge about neurodevelopmental disorders associated with the acceptance of the inclusive education model, in basic education teachers] / Conocimiento sobre trastornos del neurodesarrollo asociado con la aceptación del modelo de educación inclusiva en docentes de educación básica

OBJECTIVE: To describe the prevalence of knowledge about neurodevelopment disorders (NDDs) and the level of acceptance of models of inclusive education (IEM) in teachers. MATERIALS AND METHODS: A multicenter cross-sectional study in Mexico and Central America. A self-report instrument to teachers of basic level on knowledge in NDDs and acceptance of the IEM. RESULTS: The response of 511 teachers was obtained. The prevalence of high acceptance of the IEM was 28.6%. Of the 120 teachers who reported having extensive knowledge about intellectual disability, 3.8% were in the lowest percentile of acceptance of the IEM, 19.5% in the average percentile of acceptance and 55.5% of them were in the highest percentile acceptance (p<0.001). Among teachers, a greater knowledge about NDDs was associated with the acceptance of IEM: learning disorders RM 3.76 (95%CI 2.13-6.62); attention deficit disorders with hyperactivity RM 2.24 (95%CI 1.31-3.84) and intellectual disability RM 3.84 (95%CI 2.46-5.99). CONCLUSIONS: The teaching acceptance of IEM can be favored with greater and better training of education professionals on the different NDDs.

OBJETIVO: Describir la prevalencia del conocimiento sobre trastornos del neurodesarrollo (TdN) y el nivel de aceptación de los modelos de educación inclusiva (MEI) en docentes. MATERIAL Y MÉTODOS: Estudio transversal multicéntrico en México y Centroamérica. Aplicación de un instrumento de autorreporte a docentes de nivel básico sobre conocimiento en TdN y aceptación de los MEI. RESULTADOS: Se obtuvo la respuesta de 511 docentes. La prevalencia de alta aceptación de MEI fue de 28.6%. De los 120 docentes que refirieron tener un amplio conocimiento sobre discapacidad intelectual, 3.8% estuvieron en el percentil más bajo de aceptación de MEI, 19.5% en el percentil de aceptación promedio y 55.5% de ellos se encontraron en el percentil de mayor aceptación (p<0.001). Entre los docentes, un mayor conocimiento sobre los TdN se mostró asociado con la aceptación de MEI: trastornos del aprendizaje RM 3.76 (IC95% 2.13-6.62); trastornos por déficit de atención con hiperactividad RM 2.24 (IC95% 1.31-3.84) y discapacidad intelectual RM 3.84 (IC95% 2.46-5.99). CONCLUSIONES: La aceptación docente de MEI puede favorecerse con una mayor y mejor capacitación de los profesionales de la educación sobre los diferentes TdN.

Comunicación abierta entre profesionales de la salud mental y padres de pacientes con discapacidad intelectual / Open communication between mental health professionals and parents of patients with intellectual disabilities

Resumen Objetivo: Estimar los factores asociados con la comunicación abierta entre profesionales de la salud mental y padres de pacientes con discapacidad intelectual y otros trastornos del neurodesarrollo. Material y métodos: Encuesta transversal en 759 profesionales de la salud mental. Se estimó la asociación entre el patrón de comunicación abierto y los atributos de la comunicación a través de un modelo logístico, ordinal y multivariado. Resultados: La prevalencia del patrón de comunicación abierta en profesionales de la salud mental fue de 30.6% (IC95% 27.4-34.0). Los factores asociados fueron menor edad (RM=2.42, IC95% 1.57-3.75), especialidad (RM=1.56, IC95% 1.09-2.23), alto valor a la verdad (RM=4.95, IC95% 3.21-7.65), bajo paternalismo (RM=10.93, IC95% 7.22-16.52) y cursos de bioética (RM=1.45, IC95% 1.01-2.09), ajustando por variables confusoras. Conclusión: Los profesionales de la salud mental reportaron bajos niveles de comunicación abierta con los padres de personas con trastornos del neurodesarrollo, por lo que priorizar el valor a la verdad, promover un menor paternalismo y el respeto a la autonomía de los pacientes puede contribuir a cambiar estos patrones de comunicación en la práctica clínica en México.

Abstract Objective: To estimate the factors associated with open communication between mental health professionals and parents of patients with intellectual disabilities and other neurodevelopmental disorders. Materials and methods: Cross-sectional survey in 759 mental health professionals. The association between the pattern of open communication and the attributes of communication was estimated through a logistic, ordinal, multivariate model. Results: The prevalence of the pattern of open communication in mental health professionals was 30.6% (95%CI 27.4-34.0). The associated factors were younger age (RM=2.42, 95% CI 1.57-3.75), specialty (RM= 1.56, 95%CI 1.09-2.23), high value to the truth (RM= 4.95, 95% CI 3.21-7.65), low paternalism (RM= 10.93, 95%CI 7.22-16.52) and courses in bioethics (RM= 1.45, 95%CI 1.01-2.09), adjusted for confusing variables. Conclusion: Mental health professionals reported low levels of open communication with parents of people with neurovelopmental disorders, so prioritizing the value to the truth, promoting less paternalism, and respecting the autonomy of patients, can contribute to changing these patterns of communication in clinical practice in Mexico.

Conocimiento sobre trastornos del neurodesarrollo asociado con la aceptación del modelo de educación inclusiva en docentes de educación básica / Knowledge about neurodevelopmental disorders associated with the acceptance of the inclusive education model, in basic education teachers

Resumen Objetivo: Describir la prevalencia del conocimiento sobre trastornos del neurodesarrollo (TdN) y el nivel de aceptación de los modelos de educación inclusiva (MEI) en docentes. Material y métodos: Estudio transversal multicéntrico en México y Centroamérica. Aplicación de un instrumento de autorreporte a docentes de nivel básico sobre conocimiento en TdN y aceptación de los MEI. Resultados: Se obtuvo la respuesta de 511 docentes. La prevalencia de alta aceptación de MEI fue de 28.6%. De los 120 docentes que refirieron tener un amplio conocimiento sobre discapacidad intelectual, 3.8% estuvieron en el percentil más bajo de aceptación de MEI, 19.5% en el percentil de aceptación promedio y 55.5% de ellos se encontraron en el percentil de mayor aceptación (p<0.001). Entre los docentes, un mayor conocimiento sobre los TdN se mostró asociado con la aceptación de MEI: trastornos del aprendizaje RM 3.76 (IC95% 2.13-6.62); trastornos por déficit de atención con hiperactividad RM 2.24 (IC95% 1.31-3.84) y discapacidad intelectual RM 3.84 (IC95% 2.46-5.99). Conclusión: La aceptación docente de MEI puede favorecerse con una mayor y mejor capacitación de los profesionales de la educación sobre los diferentes TdN.

Abstract Objective: To describe the prevalence of knowledge about neurodevelopment disorders (NDDs) and the level of acceptance of models of inclusive education (IEM) in teachers. Materials and methods: A multicenter crosssectional study in Mexico and Central America. A self-report instrument to teachers of basic level on knowledge in NDDs and acceptance of the IEM. Results: The response of 511 teachers was obtained. The prevalence of high acceptance of the IEM was 28.6%. Of the 120 teachers who reported having extensive knowledge about intellectual disability, 3.8% were in the lowest percentile of acceptance of the IEM, 19.5% in the average percentile of acceptance and 55.5% of them were in the highest percentile acceptance (p<0.001). Among teachers, a greater knowledge about NDDs was associated with the acceptance of IEM: learning disorders RM 3.76 (95%CI 2.13-6.62); attention deficit disorders with hyperactivity RM 2.24 (95%CI 1.31-3.84) and intellectual disability RM 3.84 (95%CI 2.46-5.99). Conclusion: The teaching acceptance of IEM can be favored with greater and better training of education professionals on the different NDDs.

Anthropometry, body shape in early-life and risk of premenopausal breast cancer among Latin American women: results from the PRECAMA study.

Cumulating evidence in Caucasian women suggests a positive association between height and premenopausal breast cancer risk and a negative association with overall adiposity; however data from Latin America are scarce. We investigated the associations between excess adiposity, body shape evolution across life, and risk of premenopausal breast cancer among 406 cases (women aged 20-45) and 406 matched population-based controls from Chile, Colombia, Costa Rica, and Mexico. Negative associations between adult adiposity and breast cancer risk were observed in adjusted models (body mass index (BMI): Odds ratio (OR) per 1 kg/m2 = 0.93; 95% confidence interval = 0.89-0.96; waist circumference (WC): OR per 10 cm = 0.81 (0.69-0.96); hip circumference (HC): OR per 10 cm = 0.80 (0.67-0.95)). Height and leg length were not associated with risk. In normal weight women (18.5 ≤ BMI < 25), women with central obesity (WC > 88 cm) had an increased risk compared to women with normal WC (OR = 3.60(1.47-8.79)). Residuals of WC over BMI showed positive associations when adjusted for BMI (OR per 10 cm = 1.38 (0.98-1.94)). Body shape at younger ages and body shape evolution were not associated with risk. No heterogeneity was observed by receptor status. In this population of Latin American premenopausal women, different fat distributions in adulthood were differentially associated with risk of breast cancer.

Synergistic action of folate intake and testosterone associated with breast cancer risk.

The amount of irreparable DNA damage is a function of the rate of cell division, and the association between sex hormones and the risk of breast cancer has been explained by an increase in cell division. Folate intake insufficiency leads to disturbances in DNA replication and DNA repair. We hypothesized that folate intake insufficiency and high serum concentrations of sex hormones act synergistically on the risk of breast cancer. The aim of this study was to investigate the interaction between sex hormones (exposure of interest A) and dietary folate intake (exposure of interest B) on the risk of breast cancer. We included 342 breast cancer primary postmenopausal cases and 294 controls obtained from a large population-based case-control study. Multiple conditional logistic regression models were used for the analysis and interactions were tested. The joint effect of the lowest dietary folate intake (T1 < 259.40 mg/d) and the highest serum concentration of testosterone (T3 ≥ 0.410 on the risk of breast cancer was odds ratio = 9.18 (95% confidence interval 2.56-32.88) when compared to the lowest-risk category, namely, the group of women with the highest dietary folate intake (T3 > 381.29 mg/d) and the lowest serum concentration of testosterone (T1 ≤ 0.25 pg/mL). There were some indications that the estimated join effect was greater than the product of the estimated effects alone (P = .001). These findings have important public health implications with respect to reducing the risk of the most frequent cancer in women worldwide.

Project profile: a multicenter study on breast cancer in young women in Latin America (PRECAMA study).

OBJECTIVE: To describe the rationale and the methodology of a multicenter project to study the etiology of breast cancer in young Latin American women. MATERIALS AND METHODS: The International Agency for Research on Cancer has established an international collaborative population-based case-control study in four countries in Latin America: Chile, Colombia, Costa Rica, and Mexico (the PRECAMA study). Standardized methodologies were developed to collect information on reproductive variables, lifestyle, anthropometry, diet, clinical and pathological data, and biological specimens. The study will be extended to other countries in the region. CONCLUSIONS: PRECAMA is unique in its multidisciplinary approach that combines genetics, genomics, and metabolomics with lifestyle factors. Then data generated through this project will be instrumental to identify major risk factors for molecular subtypes of breast cancer in young women, which will be important for pre- vention and targeted screening programs in Latin America.

OBJETIVO: Describir la justificación y la metodología para el establecimiento de un proyecto multicéntrico sobre el cáncer de mama en mujeres jóvenes de América Latina. MATERIAL Y MÉTODOS: La Agencia Internacional para la Investigación del Cáncer (IARC) ha establecido un estudio colaborativo internacional de casos y controles con base poblacional en cuatro países de América Latina: Chile, Colombia, Costa Rica y México (el estudio PRECAMA). Se han desarrollado metodologías estandarizadas para recolectar información sobre variables reproductivas, estilos de vida, antropometría y dieta, datos clínicos y patológicos y muestras biológicas. CONCLUSIONES: PRECAMA es único en su enfoque multidisciplinario. Los datos generados a través de este proyecto serán fundamentales para identificar los principales factores de riesgo del cáncer de mama en mujeres jóvenes. Los hallazgos serán relevantes para la prevención y los programas de detección oportuna en América Latina, con beneficios clínicos inmediatos.

Project profile: a multicenter study on breast cancer in young women in Latin America (PRECAMA study) / Perfil de Proyecto: Un estudio multicéntrico sobre el cáncer de mama en mujeres jóvenes en América Latina (estudio PRECAMA)

Abstract: Objective: To describe the rationale and the methodology of a multicenter project to study the etiology of breast cancer in young Latin American women. Materials and methods: The International Agency for Research on Cancer has established an international collaborative population-based case-control study in four countries in Latin America: Chile, Colombia, Costa Rica, and Mexico (the PRECAMA study). Standardized methodologies were developed to collect information on reproductive variables, lifestyle, anthropometry, diet, clinical and pathological data, and biological specimens. The study will be extended to other countries in the region. Conclusion: PRECAMA is unique in its multidisciplinary approach that combines genetics, genomics, and metabolomics with lifestyle factors. The data generated through this project will be instrumental to identify major risk factors for molecular subtypes of breast cancer in young women, which will be important for prevention and targeted screening programs in Latin America.

Resumen: Objetivo: Describir la justificación y la metodología para el establecimiento de un proyecto multicéntrico sobre el cáncer de mama en mujeres jóvenes de América Latina. Material y métodos: La Agencia Internacional para la Investigación del Cáncer (IARC) ha establecido un estudio colaborativo internacional de casos y controles con base poblacional en cuatro países de América Latina: Chile, Colombia, Costa Rica y México (el estudio PRECAMA). Se han desarrollado metodologías estandarizadas para recolectar información sobre variables reproductivas, estilos de vida, antropometría y dieta, datos clínicos y patológicos y muestras biológicas. Conclusión: PRECAMA es único en su enfoque multidisciplinario. Los datos generados a través de este proyecto serán fundamentales para identificar los principales factores de riesgo del cáncer de mama en mujeres jóvenes. Los hallazgos serán relevantes para la prevención y los programas de detección oportuna en América Latina, con beneficios clínicos inmediatos.