Educación en enfermería y cuidado de personas con condiciones crónicas: avances y desafíos / Nursing education and care for people with chronic conditions: advances and challenges

INTRODUCCIÓN: El escenario mundial actual de las enfermedades crónicas (EC) es preocupante. Representan el grueso de la carga de enfermedad, en una población envejecida y con alta prevalencia de factores de riesgo. Para mejorar los resultados de las personas con EC, una de las líneas de trabajo prioritarias es la incorporación del apoyo al automanejo, como parte del rol profesional de profesionales de la salud. La principal debilidad percibida hoy es la falta de formación teórico-práctica desde la formación de pregrado. OBJETIVO: evaluar la enseñanza acerca del cuidado en condiciones crónicas de salud, en la formación de pregrado de la Escuela de Enfermería. METODOLOGÍA: Estudio mixto que incluyó a) Análisis del plan de estudios de pregrado vigente 2) Exploración de la experiencia previa de la unidad en investigación y educación continua en cuidados crónicos; consulta con expertos, incluyendo miembros clínicos de equipos de salud que participan en la atención a crónicos. 3) Revisión de la literatura de modelos teóricos para los cuidados crónicos 4) Explorar, a través de las percepciones de los profesores, el grado de implementación de los cuidados de enfermería para las EC. RESULTADOS: Se detectó un bajo nivel de incorporación de la educación para el cuidado crónico en el currículum y ausencia de uso de conceptos claves relacionados con esto. Esto debe hacerse a lo largo de un proceso educativo que progresivamente aumenta el nivel de complejidad en la aplicación de los cuidados a las personas con EC y que se encuentra en implementación en un nuevo plan de estudio en ejecución desde el año 2022.

INTRODUCTION: The global current scenario in non-communicable diseases (NCD) is worrisome. In Chile these conditions represent the bulk of the disease burden, in an ageing population with a high prevalence of risk factors for NCDs. Thus, the training of health professionals in this field is paramount. PURPOSE: to share our experience at the school of nursing (SON) in designing and integrating chronic care and self-management support for people with chronic conditions in the undergraduate program. METHODOLOGY: a) Revision of the undergraduate curriculum 2) Exploring SON previous experience in research and continuing education in chronic care; consultation with experts including clinical members of health teams that participate in delivering chronic care. 3) Review of the literature to find theoretical models for chronic care 4) explore, through the lecturers' perceptions, the degree of implementation of nursing care for NCDs in clinical practice. RESULTS AND CONCLUSIONS: We found that there was a lack of incorporation of subjects and contents on chronic care in the curriculum and in clinical settings. It is important to incorporate chronic care and self-management support in nursing education at the theoretical and the clinical level. This should be done throughout an education process that increases progressively the level of complexity in the application of caring for people with NCDs. The SON will implement this approach in the new curricula starting on 2022.

Nivel de literacidad en salud en población chilena con enfermedades crónicas: análisis secundario de la Encuesta Nacional de Salud 2009 y 2016 / Health literacy level on chilean population with chronic diseases: secondary analysis of the 2009 and 2016 national health survey

INTRODUCCIÓN: Las enfermedades crónicas no transmisibles (ECNT) son consideradas una pandemia dada su alta prevalencia y morbimortalidad asociada. Se postula que el nivel de literacidad en salud (LS) de las personas con estas condiciones impactaría en su autocuidado. OBJETIVO: Conocer la prevalencia de bajo nivel de LS de la población chilena con ECNT según datos de la Encuesta Nacional de Salud (ENS) versión 2009 y 2016; además de identificar cómo su LS influiría sobre ciertos resultados en salud. METODOLOGÍA: Estudio transversal descriptivo-analítico. Se utiliza el ítem del módulo psicosocial de la ENS que evalúa autoeficacia literaria y se cruza con variables sociodemográficas y resultados intermedios de salud de interés. RESULTADOS Y DISCUSIÓN: La prevalencia de bajo nivel de LS en población con diabetes fue de 23,7% el 2009 y de 15,5%, el 2016. Para personas con hipertensión arterial, se obtuvo una prevalencia de 19,7% en el 2009 y de 17,5% en el 2016. Se observa diferencias por edad, sexo, nivel educacional y ruralidad. Se reporta mayor proporción de HbA1c descompensada, menor actividad física y peor estado de salud percibido en la población estudiada. CONCLUSIONES: El nivel de LS influye en cómo los individuos manejan su condición crónica. Contar con un diagnóstico previo del nivel de LS de las personas, permitiría diseñar intervenciones pertinentes a sus necesidades.

INTRODUCTION: Chronic non-communicable diseases (NCDs) are considered a pandemic given their high prevalence and associated morbidity and mortality. It is postulated that the level of health literacy (HL) of people with these conditions would impact their self-care. OBJECTIVE: To know the prevalence of low HL of the Chilean population with NCD according to data from the National Health Survey (ENS) version 2009 and 2016; in addition to identify how their HL would influence certain health outcomes. METHODOLOGY: Descriptive-analytical cross-sectional study. The ENS's item from the psychosocial module which evaluates literary self-efficacy is used and crossed with sociodemographic variables and intermediate health outcomes of interest. RESULTS AND DISCUSSION: The prevalence of low HL in the population with diabetes was 23.7% in 2009 and 15.5% in 2016. For people with arterial hypertension, a prevalence of 19.7% was obtained in the 2009 and 17.5% in 2016. Differences are observed by age, sex, educational level, and rurality. A higher proportion of uncompensated HbA1c, lower physical activity and worse perceived health status are reported in the population studied. CONCLUSIONS: The HL level influences how individuals manage their chronic condition. Having a prior diagnosis of people's HL would allow the design of interventions to be relevant to their needs.

Enfermedad crónica y control metabólico, relación con características de la atención de salud en Chile / Chronic disease and metabolic control, relationship with characteristics of health care in Chile

OBJETIVO: determinar el nivel de control metabólico de las personas con hipertensión arterial (HTA) y diabetes mellitus (DM) que se atienden en el Programa de Salud Cardiovascular en la red de Atención Primaria en Salud (APS) a nivel nacional y establecer su relación con algunas características de la atención de salud. MÉTODO: diseño descriptivo, correlacional y de corte transversal. Se realizó estadística descriptiva del control metabólico de las personas con HTA y DM, se utiliza Prueba T para Muestras pareadas. Se calcula la asociación entre el control metabólico y la variable de población beneficiaria por comuna utilizando el Coeficiente de Correlación de Pearson. RESULTADOS: en el control metabólico, de las personas con HTA, el 56,02% y 55,75% logran una presión arterial <140/90 mmHg en el año 2018 y 2019; con respecto a las personas con DM, el 38,73% y el 38,51% alcanzan niveles de hemoglobina glicosilada <7% para los años 2018 y 2019 respectivamente. Se evidencia una correlación positiva entre el control metabólico de HTA y DM, con un R de Pearson = 0,719, un IC 95% [0,453 ­ 0,868] y p<0,001 en el año 2018 y un R de Pearson = 0,647, un IC 95% [0,330 ­ 0,833] y p<0,001 en el año 2019. CONCLUSIONES: adoptar un enfoque integral y de género en el manejo de las enfermedades crónicas en la Atención Primaria en Salud es fundamental, dirigiendo las estrategias con el fin de lograr el control metabólico. Las políticas públicas deben orientarse a la disminución de las brechas en salud.

OBJECTIVE: to determine the level of metabolic control of people with high blood pressure (HBP) and diabetes mellitus (DM) who are treated in the Cardiovascular Health Program within the primary care network at the national level and to establish their relationship with some characteristics of health care provision. METHOD: cross-sectional correlational descriptive design. Descriptive statistics of the metabolic control of people with HBP and DM were performed, using the T Test for Paired Samples. The association between metabolic control and the beneficiary population variable by commune is calculated using the Pearson Correlation Coefficient. RESULTS: in relation to the metabolic control, 56.02% and 55.75% of people with hypertension, in 2018 and 2019, achieved a blood pressure <140/90 mmHg; regarding people with DM, 38.73% and 38.51%, obtained glycosylated hemoglobin levels <7%, for the year 2018 and 2019. A positive correlation is evidenced between the metabolic control of HBP and DM, with a Pearson's R = 0.719, a 95% CI [0.453 - 0.868] and p<0.001 in the year 2018 and a Pearson's R = 0.647, a 95% CI [0.330 - 0.833] and p<0.001 in the year 2019. CONCLUSIONS: adopting a comprehensive and gender approach in the management of chronic diseases in Primary Health Care is essential, directing strategies to achieve metabolic control. Public policies must be aimed at reducing health gaps.

Relación del apoyo social percibido y el logro de las metas de compensación de los pacientes con hipertensión arterial y diabetes mellitus / Relationship of perceived social support and the compensation goals of patients with arterial hypertension and diabetes mellitus

INTRODUCCIÓN: Las enfermedades crónicas son un problema actual que presentan altos porcentajes de descompensación en pacientes hipertensos y diabéticos, que hace interesante evaluar los determinantes sociales que influyen en la situación, como el apoyo social. OBJETIVO DEL ESTUDIO: fue relacionar el apoyo social percibido, adherencia a medicamentos, literacidad y variables sociodemográficas con el logro de compensación en pacientes con hipertensión arterial y diabetes mellitus. METODOLOGÍA: De tipo descriptivo correlacional de corte transversal. RESULTADOS: Se estudió a 600 personas, con un promedio de edad de 62,9 años, 63,5% mujeres. Un 64,66% son diabéticos y 89,5% hipertensos (46,9% y 43,33% descompensados respectivamente). El apoyo social percibido fue alto y presentan una inadecuada adherencia al tratamiento farmacológico y una adecuada literacidad en salud (57,6%). Se realiza un análisis de relaciones que demuestran relación significativa entre una menor percepción de apoyo instrumental y ser mujer; la percepción del apoyo de interacción social disminuye con el aumento de la edad y en relación con el apoyo afectivo, disminuye la percepción a mayores años de estudios. Al realizar una regresión logística, entre la percepción de apoyo social baja y los niveles de compensación de los parámetros de compensación no se evidencia una relación estadísticamente significativa. Se evidencia una asociación entre las personas con menos de 8 años de estudio y presentar presiones arteriales elevadas. DISCUSIÓN: Existe dificultad en la medición del concepto de apoyo social, dado que el sentido y significancia es personal. Las patologías crónicas como estresores debe ser un elemento que continúe estudiándose con estudios longitudinales y experimentales. Las estrategias clínicas para la compensación de la hipertensión y la diabetes deben ir más allá del apoyo social, considerando las crecientes complicaciones y proyecciones de mortalidad. CONCLUSIÓN: Se destaca la importancia de abordar el apoyo social considerando su naturaleza subjetiva y contextual, aunque no se estableció una correlación directa con el logro terapéutico. Se señala la inadecuada adherencia al tratamiento farmacológico, la asociación entre baja escolaridad y presiones arteriales elevadas.

INTRODUCTION: Chronic diseases are a current problem since there are high percentages of decompensation in hypertensive and diabetic patients, which makes it interesting to evaluate the social determinants that influence and social support as a multidimensional concept. OBJECTIVE: To relate the perceived social support, medication adherence, literacy and sociodemographic variables with the achievement of compensation in patients with arterial hypertension and / or diabetes mellitus. METHODOLOGY: Descriptive correlational descriptive study is performed methodologically. RESULTS: 600 people were studied, with an average age of 62.9 years, 63.5% women. 64.66% are diabetic and 89.5% hypertensive (46.9% and 43.33% decompensated respectively). The perceived social support was high and showed inadequate adherence to drug treatment and adequate literacy (57.6%). An analysis of relationships that are significantly related between a lower perception of instrumental support and being a woman is performed; the perception of social interaction support with increasing age and in relation to affective support, the perception of older years of studies. When performing a logistic regression, there is no statistically significant relationship between the perception of low social support and the compensation levels of the compensation parameters. There is evidence of an association between children under 8 years of study and presentation of high arterial references. DISCUSSION: There is difficulty in measuring the concept of social support, since the meaning and meaning is personal. Chronic pathologies as stressors should be an element that continues to study with longitudinal and experimental studies. Clinical strategies for the compensation of hypertension and diabetes must go beyond social support, considering the increasing complications and mortality projections. CONCLUSION: Emphasizes the importance of addressing social support considering its subjective and contextual nature, though no direct correlation with therapeutic achievement was established. Highlights inadequate adherence to pharmacological treatment, the association between low education and elevated blood pressure.

Programa integral de apoyo a personas con cáncer de mama en tratamiento con quimioterapia para mejorar resultados en salud y calidad de vida, con perspectiva de autocuidado / Comprehensive support program for people with breast cancer undergoing chemotherapy treatment to improve health outcomes and quality of life, with a self-care perspective

El rol de la Enfermería de Práctica Avanzada (EPA) se incorpora a los equipos de salud en la década de los 60 en Estados Unidos y su contribución se expande a otros países. En Chile es un rol incipiente. El rol de EPA contribuye a implementar un modelo de atención centrado en la persona, que brinda atención integral y atiende necesidades específicas y relevantes a diversos grupos de población. OBJETIVO: Diseñar una intervención dirigida a personas en tratamiento con quimioterapia (QT) por un profesional de enfermería con formación avanzada. PROPUESTA: Como parte del diseño, se buscó evidencia para respaldo de la intervención. Se utilizaron las palabras claves: cáncer de mama, quimioterapia, enfermera de practica avanzada, enfermera practicante, sobreviviente; en las bases de datos Pubmed, Web of Science, ProQuest, Epistemonikos, Elsevier, Scielo. Un componente fundamental del programa propuesto es el seguimiento proactivo realizado por una EPA y dirigido a las mujeres con cáncer de mama en QT. Este permitirá: a) potenciar las habilidades de autocuidado, b) mejorar la tolerancia al tratamiento, c) hacer entrega de cuidado experto e individualizado, planificado de acuerdo a las necesidades de cada persona, promoviendo la recuperación de la autonomía y el bienestar. CONCLUSIONES: Como resultados complementarios se espera impactar en la satisfacción usuaria, y asimismo aportar a la implementación del nuevo rol EPA al promover el reconocimiento por el paciente y el equipo de salud como profesional experto en cuidado avanzado.

The Advanced Practice Nurse (APN) joined health teams in the 1960s in the United States and her contribution spread to other countries. In Chile it is an incipient role. APN's role contributes to implementing a person-centered care model that provides comprehensive care and attends to specific and relevant needs of various population groups. OBJECTIVE: To design an intervention aimed at people undergoing chemotherapy treatment (CT) by a nursing professional with advanced training. PROPOSAL: As part of the design, evidence was sought to support the intervention. The keywords were used: breast cancer or neoplasm cancer, chemotherapy, advanced practice nurse or nurse practitioner. Survivorship in the Pubmed, Web of Science, ProQuest, Epistemonikos, Elsevier, Scielo databases. A fundamental component of the proposed program is the proactive follow-up carried out by an APN and aimed at women with breast cancer in QT. This will allow: a) to enhance self-care skills, b) to improve tolerance to treatment, c) to deliver expert and individualized care, planned according to the needs of each person, promoting the recovery of autonomy and well-being. CONCLUSIONS: As complementary results, it is expected to impact user satisfaction, and also contribute to the implementation of the new APN role by promoting recognition by the patient and the health team as an expert professional in advanced care.

El Modelo Transteórico y la Teoría del Automanejo Individual y Familiar como paradigma para comprender el cambio de comportamiento y el automanejo en personas con enfermedades crónicas / The Transtheoretical Model and the Individual and Family Self-Management Theory as a paradigm to understand behavior change and self-management in people with chronic diseases

INTRODUCCIÓN: El automanejo y el cambio de conducta siguen siendo retos para quienes padecen enfermedades crónicas. Para su abordaje existen modelos y estrategias que orientan a alcanzar mejores resultados en salud. OBJETIVO: Analizar la Teoría del Automanejo Individual y Familiar junto con el Modelo Transteórico como paradigmas para comprender los desafíos e identificar factores involucrados en el cambio conductual y el automanejo de personas con enfermedades crónicas. DESARROLLO: El Modelo Transteórico comprende cinco etapas que explican el proceso cíclico de cambio. Por otro lado, la Teoría del Automanejo Individual y Familiar se distingue por tres dimensiones: contexto, proceso y resultados. Al interrelacionar ambos modelos, se observa que el contexto dado por la Teoría del Automanejo Individual y Familiar puede determinar la etapa del cambio. Los procesos, como la autoeficacia, la facilitación social o la autorregulación, son implementados de formas distintas según la etapa del cambio en la que la persona se encuentre. CONCLUSIÓN: La integración de ambos modelos potencia la comprensión acerca del cambio de conducta en personas con enfermedades crónicas. Esta articulación favorece enfoques más personalizados, lo que permitiría que los profesionales de enfermería reconocer la etapa de cambio en la que se encuentra la persona y, con base en la Teoría del Automanejo, atender las necesidades del individuo y familia, propiciando un cuidado integral.

INTRODUCTION: Self-management and behavioral change continue to be challenges for those suffering from chronic diseases. There are models and strategies for approaching them that aim to achieve better health outcomes. OBJECTIVE: Analyze the Individual and Family Self-Management Theory together with the Transtheoretical Model as paradigms to understand the challenges and identify factors involved in behavioral change and self-management of people with chronic diseases. DEVELOPMENT: The Transtheoretical Model comprises five stages that explain the cyclical process of change. On the other hand, the Individual and Family Self-Management Theory is distinguished by three dimensions: context, process and outcomes. By interrelating both models, it is observed that the context given by the Individual and Family Self-Management Theory can determine the stage of change. Processes, such as self-efficacy, social facilitation or self-regulation, are implemented in different ways depending on the stage of change the person is in. Finally, outcomes, such as self-management, emerge from the effective joint application of both models. CONCLUSION: The integration of both models enhances the understanding of behavior change in people with chronic diseases. This articulation favors more personalized approaches, which would allow nursing professionals to recognize the stage of change in which the person is and, based on the Self-Management Theory, address the needs of the individual and family, promoting comprehensive care.

Cuidado de transición: calidad y seguridad de la atención en personas con condiciones crónicas de salud / Transitional care for people with chronic health conditions

People with chronic conditions and elderly frequently use different levels of health care. If those are not coordinated, patients are exposed to complications and adverse effects. To avoid this, the implementation of transitional care (TC) is proposed, which includes the coordination and follow-up of users through the different care settings. We aimed to analyze the concept of transitional care, its characteristics and impact on people with chronic conditions. A search of articles published between 2012 and 2019 in Google Scholar, MEDLINE, CINAHL and Cochrane Library databases was conducted looking for articles related to the concept of transitional care, characteristics, and impact on people with chronic conditions. Several models of TC have been formulated and the literature identifies common interventions, namely telephone follow-up, outpatient clinics and home visits for self-management support. Reports show that TC reduces re-hospitalizations, care costs, increases quality of life and user satisfaction with the health system.

Una propuesta para mejorar el acceso y cobertura en oncología para Latinoamérica: enfermería de práctica avanzada / Advanced practice nursing as a proposal to improve access and coverage in oncology for Latin America

PAHO/WHO proposes to implement the role of Advanced Practice Nurse (APN) in Latin America, to reduce gaps in coverage and access to health care. For this purpose, it is necessary to train nursing professionals with an expanded role, which allows them to collaborate in the diagnosis, treatment, and monitoring of people with specific diseases, under established protocols and clinical guidelines and within consolidated interdisciplinary health teams in a cost-effective way. One of the areas with the greatest coverage deficit in Latin America is adult oncology, with inequality in care opportunities for these patients. Part of the premature deaths attributable to this disease are due to the lack of access to timely diagnosis and treatment. As a contribution to the reduction of this gap, a training program of Advanced Nursing Practice was developed, addressing the most urgent needs in the field of oncology. The necessary competencies were defined to develop a professional-level master's degree program, considering prevention, early detection, diagnosis, treatment, and monitoring of people with oncological diseases at different levels of care. A program of this kind is an opportunity to reduce the access gap and coverage of health care for people with cancer, improving their quality of life and their survival.

Diagnóstico médico de depresión se asocia a sospecha de deterioro cognitivo en adultos mayores / Association between cognitive impairment and depression in Chilean older adults

Background: Depression has been previously associated with cognitive impairment in high income country populations. However, its association in the Chilean population has not been investigated. Aim: To investigate the association between depression and cognitive impairment. Material and Methods: Data from 1384 Chilean adults aged > 60 years, participating in the National Health Survey 2009-2010 was analyzed. Cognitive impairment was assessed using the Mini Mental Examination score. The medical diagnosis of depression was self-reported. The association between depression and cognitive impairment was assessed using a logistic regression. Results: Depression was positively associated with cognitive impairment. However, the magnitude of the association was higher in men (Odds ratio (OR) = 4.02 [95% confidence intervals (CI): 1.44; 6.61], p < 0.01]) than in women (OR = 2.23 [95%CI: 1.03; 3.43], p = 0.04). Older adults who were diagnosed for the first time with depression after 65 years of age, showed a stronger association with cognitive impairment (OR = 6.65 [95% CI: 2.39; 10.9], p < 0.01) than those diagnosed before 55 years. Conclusions: Our study confirms the association between depression and cognitive impairment. Further research is needed to elucidate the nature and potential mechanisms that link depression with cognitive impairment.

Nivel de actividad física y sedentarismo en personas con diagnóstico de cáncer en Chile / Physical activity and sedentary behaviors among people with cancer

Background: One of the side effects of cancer treatment is a low level of physical activity (PA) due to fatigue and pain. Aim: To quantify PA levels in Chilean people with cancer. Material and Methods: Analysis of the National Health Survey 2016-2017 including 6,233 participants, comparing those with and without a self-report of cancer was conducted. Levels of PA and sitting time were assessed using the Global Physical Activity Questionnaire. Results: 3% of participants [confidence intervals (CI): 2.6; 3.9] reported having cancer and 34% [95% CI: 22.7; 46.7] of these reported being physically inactive, compared to 25% [95% CI: 22.5; 27,3] of those without cancer. Participants with cancer performed 56 and 77 minutes/day lower vigorous and total PA than participants without cancer. No differences between groups were observed for commuting PA, moderate PA and sedentary time. Lower level of PA was independent of the years elapsed since the diagnosis of cancer. Conclusions: People with cancer are less physically active than their counterparts without the disease.

Una mirada actual de la vitamina C en salud y enfermedad / Vitamin C in health and disease: a current perspective

RESUMEN La vitamina C es uno de los antioxidantes más conocidos. Su ingesta ha sido asociada a un sinnúmero de beneficios, algunos de los cuales tienen un sustento científico débil o inexistente. En esta revisión se presentan en forma resumida aspectos biológicos que determinan la homeostasis de la vitamina C y se discute la información disponible sobre sus posibles efectos benéficos y su ingesta, en diversos países con especial énfasis en algunos grupos de riesgo. También se presentan sus efectos benéficos en inflamación, cáncer y enfermedades cardiovasculares, así como su acción de inmunomodulador y regulador epigenético. Se revisan también algunas fuentes dietarias de vitamina C y los factores que influyen en su estabilidad. Terminando con un análisis general de los trabajos relacionados con conducta de vida saludable en países latinoamericanos, que reflejan los malos hábitos alimentarios y que podrían dar cuenta de una hipovitaminosis de vitamina C aún no reportada y repercutir en el desarrollo de envejecimiento precoz y enfermedades crónicas no transmisibles.

ABSTRACT Vitamin C is a well-known antioxidant. Its intake has been associated with a number of benefits, some of which lack a scientific basis. This review summarizes important biological aspects that determine vitamin C homeostasis, discusses the available information on its possible beneficial effects and its intake in various countries, with special emphasis on some risk groups. The beneficial effects of this vitamin in inflammation, cancer and cardiovascular disease are also summarized, as well as its role as immuno-modulator and epigenetic regulator. Dietary sources of vitamin C and the factors that influence its stability are also presented. Finally, an overview of the research conducted on healthy lifestyles in Latin-American countries are presented. This research summarized provides evidence of poor eating habits, which could account for a vitamin C hypovitaminosis not yet reported that could be associated with unhealthy ageing and the development of non-transmissible chronic diseases.

¿Cuál es la asociación entre el tiempo destinado a dormir y el desarrollo de deterioro cognitivo en adultos mayores chilenos? / Association between sleep duration and cognitive impairment in older people

Background Sleep duration may be a risk factor for cognitive impairment. Aim To investigate the association between sleep duration and cognitive function in Chilean older adults. Material and Methods We analyzed information from 1,384 participants aged > 60 years participating in the National Health Survey 2009-2010 who were assessed with the Mini Mental State Examination (MMSE) and self-reported their average daily sleep hours. Logistic regression analysis was performed to investigate the association between MMSE and sleep duration. Results Compared to those participants who reported sleeping 7 hours per day, those that reported sleeping < 5 hours had a higher odd for cognitive impairment (Odds ratio (OR): 3.66 [95% confidence intervals (CI: 1.69; 7.95], p < 0.01). Similarly, those who reported sleeping > 8 hours per day also showed a higher odd for cognitive impairment (OR: 2.56 [95% CI: 1.32; 4.95], p < 0.01). This association was even stronger for people who reported more than 10 hours of sleep per day (OR: 4.46 [95% CI: 1.32; 4.95], p < 0.01). Conclusions Long and short sleep duration is associated with cognitive impairment in older adults in Chile independent of major confounding factors.

Actividad física y tiempo sedente se asocian a sospecha de deterioro cognitivo en población adulta mayor chilena / Physical activity and sedentary behaviours are associated with cognitive impairment in Chilean older adults

Background: Lifestyle factors could promote healthy ageing. Aim: To investigate the association between physical activity (PA), sedentary behavior and cognitive impairment in Chilean older adults. Material and Methods: We included 1,390 participants from the National Health Survey (2009-2010). The Mini-Mental State Examination was used to diagnose cognitive impairment. Physical activity and sedentary behavior were assessed with the Global Physical Activity Questionnaire (GPAQ). Logistic regression was performed to investigate the associations. Results: Compared with older adults with lower levels of PA (< 48 min/day), those with middle (48-248 min/day) and higher (>248 min/day) levels of PA had lower odds for cognitive impairment (Odds ratio (OR): 0.57 [95% confidence intervals (CI): 0.33; 0.82], p < 0.01 and 0.58 [95% CI: 0.32; 0.83], p < 0.01, respectively). Participants who reported spending more than 8 hours/day sitting had a high odds for cognitive impairment compared to those who spent < 4 hours/day (OR: 3.70 [95% CI: 1.37; 6.03], p = 0.01). Conclusions: Both PA and sedentary behavior were independently associated with cognitive decline independent of major confounding factors in Chilean older adults.

Influencia de la edad sobre el cumplimiento de las recomendaciones de actividad física: Resultados de la Encuesta Nacional de Salud en Chile 2009-2010 / Adherence to physical activity recommendations across age categories: Findings from the 2009-2010 Chilean National Health Survey

RESUMEN A pesar de que la actividad física (AF) es un factor protector contra las enfermedades crónicas no transmisibles, un gran porcentaje de la población no cumple los niveles mínimos recomendados. El objetivo fue investigar como varían los niveles de práctica de AF entre los diferentes grupos etarios en la población chilena. Se incluyeron 5.133 participantes de la Encuesta Nacional de Salud 2009-2010. La AF fue determinada utilizando el cuestionario GPAQ. La inactividad física fue definida como <600 MET/min/semana de AF moderada a vigorosa. La asociación entre AF y edad fue investigada por sexo mediante regresión logística. Las mujeres presentaron una mayor probabilidad de ser físicamente inactivas en comparación a los hombres (p<0,0001). Al analizar la prevalencia de inactividad física por sexo y grupo etario, esta cambió ligeramente entre los 20 a 59 años, pero a partir de los 60 se observó un incremento importante en la prevalencia llegando a 63% y 56% para mujeres y hombres >80 años, respectivamente. Los resultados obtenidos confirman la necesidad de seguir fomentando la práctica regular de AF física a través de todo el ciclo vital, pero en especial sobre los 60 años, ya que este grupo presenta una mayor probabilidad de ser físicamente inactivo.

ABSTRACT Although physical activity (PA) is a protective factor against non-communicable diseases, there is an important proportion of the population who do not meet PA guidelines. Our aim was to investigate how adherence to PA guidelines varies across different age groups in the Chilean population. 5,133 participants from the 2009-2010 Chilean Health Survey were included in this study. PA was measured using the Global Physical Activity Questionnaire (GPAQ). Physical inactivity was defined as <600 MET/min/week of moderate to vigorous intensity PA. Logistic regression was used to investigate the association of PA with age. The main finding of this shows that women were more likely to be inactive than men (p<0.0001). Physical inactivity prevalence varied slightly between 20 and 59 years. However, among those individuals aged >60 years the prevalence increased markedly, reaching 63% and 56% for women and men aged >80 years, respectively. These findings confirm the necessity of promoting PA across the lifespan, but more importantly, these results suggest that more promotion and opportunities for engaging in PA should be created especially for older adults, who are more likely to be physically inactive.

High prevalence of CTX-M-1 group in ESBL-producing enterobacteriaceae infection in intensive care units in southern Chile

ABSTRACT Enterobacteria-producing extended-spectrum β-lactamases (ESBL) play an important role in healthcare infections, increasing hospitalization time, morbidity and mortality rates. Among several ESBLs that emerge from these pathogens, CTX-M-type enzymes had the most successful global spread in different epidemiological settings. Latin America presents high prevalence of CTX-M-2 in ESBL-producing enterobacterial infections with local emergence of the CTX-M-1 group. However, this high prevalence of the CTX-M-1 group has not yet been reported in Chile. The aim of this study was to identify ESBLs among enterobacteria isolated from clinical samples of critically ill patients from southern Chile. One-hundred thirty seven ESBL-producing bacteria were isolated from outpatients from all critical patient units from Hernán Henríquez Aravena Hospital. Phenotype characterization was performed by antibiogram, screening of ESBL, and determination of minimum inhibitory concentration (MIC). PCR was used for genetic confirmation of resistance. Molecular typing was performed by ERIC-PCR. ESBL-producing isolates were identified as Klebsiella pneumoniae (n = 115), Escherichia coli (n = 18), Proteus mirabilis (n = 3), and Enterobacter cloacae (n = 1), presenting multidrug resistance profiles. PCR amplification showed that the strains were positive for blaSHV (n = 111/81%), blaCTX-M-1 (n = 116/84.7%), blaTEM (n = 100/73%), blaCTX-M-2 (n = 28/20.4%), blaCTX-M-9 (0.7%), blaPER-1 (0.7%), and blaGES-10 (0.7%). The multiple production of ESBL was observed in 93% of isolates, suggesting high genetic mobility independent of the clonal relationship. The high frequency of the CTX-M-1 group and a high rate of ESBL co-production are changing the epidemiology of the ESBL profile in Chilean intensive care units. This epidemiology is a constant and increasing challenge, not only in Chile, but worldwide.

Asociación entre el polimorfismo rs9939609 del gen FTO y marcadores de adiposidad en población adulta chilena / Association between FTO (ns9939609) genotype and adiposity markers in Chilean adults

Background: Numerous studies have identified the role of Fat-mass-associated-gene (FTO) in the development of obesity. Aim: To investigate the association of FTO gene with adiposity markers in Chilean adults. Material and Methods: 409 participants were included in this cross-sectional study. The association between FTO (rs9939609) genotype and adiposity markers was determined using linear regression analyses. Adiposity markers included were: body weight, body mass index, fat mass, waist circumference, hip circumference and waist/hip ratio. Results: A fully adjusted model showed a significant association between FTO genotype and body weight (2.16 kg per each extra copy of the risk allele [95% confidence intervals (CI): 0.45 to 3.87], p = 0.014), body mass index (0.61 kg.m-2 [95% CI: 0.12 to 1.20], p = 0.050) and fat mass (1.14% [95% CI: 0.39 to 1.89], p = 0.010). The greater magnitude of association was found between the FTO gene and fat mass when the outcomes were standardized to z-score. Conclusions: This study confirms an association between the FTO gene and adiposity markers in Chilean adults, which is independent of major confounding factors.

Implicancias estructurales y fisiológicas de la célula bacteriana en los mecanismos de resistencia antibiótica / Structural and physiological implications of bacterial cell in antibiotic resistance mechanisms

RESUMEN: La alta capacidad de adaptación de las bacterias a ambientes hostiles ha permitido el desarrollo de resistencia a antibacterianos, causando problemas de impacto mundial en la salud hospitalaria y de la comunidad, limitando las opciones terapéuticas lo que afecta el control de enfermedades, elevando las tasas de morbi-mortalidad. Esta capacidad de resistencia es mediada por factores estructurales y fisiológicos de las bacterias que actúan a diferentes niveles tanto extracelular como intracelular. A niveles extracelulares se destaca la capacidad de las poblaciones bacterianas en la formación de biopelículas y la regulación de señales celulares quorum sensing, permitiendo la evasión de la acción antibiótica. A nivel de envoltura celular se destaca el funcionamiento y comportamiento de la pared celular y de la membrana celular, principalmente por medio de la regulación de la expresión de canales de entrada o porinas y/ o bombas de expulsión que impiden el acceso o inducen la salida de antibióticos; otros mecanismos integran la modificación de la actividad de drogas por medio de la hidrólisis o modificación del sitio activo del fármaco. A nivel intracelular, las bacterias pueden cambiar los procesos de óxido/reducción, modificar los sitios objetivos del antibiótico e inactivar los grupos transfer, y modificar las subunidades ribosomales afectando la acción de los antibióticos que inhiben la síntesis de proteínas. A esto se añaden las modificaciones en la expresión génica y del código genético, que regula todos los anteriores, y es capaz de generar cambios adaptativos, resistencia a fármacos y desinfectantes, entre otros. La presente revisión tiene como objetivo describir las implicancias estructurales y fisiológicas de la célula bacteriana en los mecanismos de resistencia antibiótica considerando la organización estructural y fisiológica involucrada en los principales mecanismos de resistencia a antibióticos presentes en bacterias de importancia clínica que conllevan a fallas terapéuticas con alto costo en salud humana.

SUMMARY: The high adaptability of bacteria to hostile environments has favored antibacterial resistance development, impacting hospital and community healthcare worldwide. It has also affected disease control, limited therapeutic options and raised morbiditymortality rate. This resistance ability is mediated by structural and physiological factors of bacteria acting at both extracellular and cellular levels. The ability of bacterial populations in biofilm formation and regulation of cellular signal quorum sensing at the extracellular level, allows for the evasion of antibiotic action. At a cellular level, the performance and behavior of the cell wall and cell membrane is emphasized, mainly by regulating the expression of inlet channels or porins and/or expulsion pumps preventing access to, or inducing the outflow of antibiotics. Other mechanisms integrate modification of drug activity by hydrolysis or modification of the active site of the drug. Further into intracellular level, bacteria can change the oxidation/reduction processes; modify the target sites of the antibiotic and inactivate transfer groups. Bacteria can also modify the ribosomal subunits affecting the antibiotics which inhibit protein synthesis, and cause modifications of gene expression and genetic code that regulate the above mechanism. These may also generate adaptive changes and resistance to drugs and disinfectants. The aim of the present review is to describe the structural and physiological implications of bacterial cell in the mechanisms of antibiotic resistance. The study also considered the structural and physiological organization involved in the main mechanisms of antibiotic resistance in bacteria relevant to clinical healthcare.