Analysis of the decrease in deaths due to coronary disease between 1995 and 2010. IMPACT CHD Argentina Study. / [Análisis del descenso de muertes por enfermedad coronaria entre 1995 y 2010. Estudio IMPACT CHD Argentina.]

Objetive: To quantify the contribution of risk factors and treatments in the reduction of mortality due to coronary heart disease in Argentina between 1995 and 2010. Results: We used the validated IMPACTCHD model integrating data on effectiveness, use of treatments and changes in the risk factors between 1995 and 2010 in people older than 25 years in Argentina. The difference between the coronary deaths observed and expected in 2010 was distributed between treatments and risk factors. Conclusions: One out of every two MPP due to coronary heart disease in Argentina between 1995 and 2010 was due to treatments and one third to the improvement of risk factors. The decrease in blood pressure, cholesterol and smoking was limited by increases in the prevalence of obesity, sedentary lifestyle and diabetes. This study was possible thanks to the collaborative work to the cardiovascular epidemiology.

Objetivos: Cuantificar la contribución de los factores de riesgo (FR) y de los tratamientos en el descenso de mortalidad por enfermedad coronaria en Argentina entre 1995 y 2010. Métodos: Utilizamos el modelo validado IMPACTCHD integrando datos de efectividad y utilización de tratamientos y cambios en los FR en 1995 y 2010 en mayores de 25 años en Argentina. La diferencia entre las muertes coronarias observadas y esperadas en el 2010 se distribuyó entre los tratamientos y los FR. Resultados: Entre 1995 y 2010 las tasas ajustadas de mortalidad por enfermedad coronaria descendieron 29,8% (8 500 muertes prevenidas o pospuestas - MPP). Las mejoras en los tratamientos explicaron un 49,9%, en su mayoría por prevención secundaria del infarto agudo de miocardio (8,2%); tratamiento antihipertensivo (11,9%) y para insuficiencia cardíaca (13,2%). Las mejoras en los FR explicaron 32,9% de las MPP: presión arterial sistólica 34,6%; colesterol total 12,8%; tabaquismo 6,8%. Se encontró un exceso de muertes debido al aumento de diabetes (9,4%), obesidad (6,9%) y sedentarismo (5%). Un 17,2% de las MPP no fue explicado por el modelo. Conclusiones: Una de cada dos MPP por enfermedad coronaria en Argentina entre 1995 y 2010 se debió a los tratamientos y un tercio a la mejora de los FR. El descenso de la presión arterial, colesterol y tabaquismo fue limitado por aumentos en la prevalencia de obesidad, sedentarismo y diabetes. Este trabajo fue posible gracias al trabajo colaborativo en pos de la epidemiología cardiovascular.

Evaluación del riesgo cardiovascular en siete ciudades de Latinoamérica: las principales conclusiones del estudio CARMELA y de los subestudios / Evaluation of Cardiovascular Risk in Seven Cities in Latin America: The Main Conclusions of the CARMELA Study / Assessment of Cardiovascular Risk in Seven Latin American Cities: The Main Conclusions of the CARMELA Study and Substudies

Para evaluar el nivel de riesgo cardiovascular de la población latinoamericana se diseñó un estudio en siete ciudades de la región a fin de realizar un muestreo poblacional homogéneo con metodología única, exámenes de laboratorio y físicos estandarizados y controlados para obtener así datos epidemiológicos confiables. El estudio CARMELA (Cardiovascular Risk Factor Multiple Evaluation in Latin America) evaluó 11.550 sujetos de la población general. Los resultados mostraron que la hipertensión tuvo una prevalencia equiparable a nivel mundial sólo en tres ciudades, en tanto que en el resto fue menor. La hipercolesterolemia fue muy prevalente aun en ciudades de diferente nivel socioeconómico. La diabetes se halló entre el 7% y el 9% en Ciudad de México, Bogotá y Santiago de Chile. El tabaquismo fue muy alto en ambos sexos en Santiago de Chile y en Buenos Aires. La obesidad abdominal y el síndrome metabólico predominaron en las mujeres de bajos recursos. El espesor íntima-media y la prevalencia de placa carotídea tuvieron una amplia variación entre ciudades. Los datos epidemiológicos recabados en el estudio CARMELA completan el panorama del riesgo cardiovascular de nuestra región y muestran que su prevalencia indica la necesidad de contar con políticas de salud racionales.

To assess the cardiovascular risk of the Latin American population, we conducted a homogeneous population-based sampling study in seven cities of the region following controlled and standardized methods, laboratory tests and physical examination and thus obtain reliable epidemiological data. The CARMELA study (Cardiovascular Risk Factor Multiple Evaluation in Latin America) evaluated 11550 subjects from the general population. The prevalence of hypertension mirrored the world average in 3 cities but was lower in the rest. Hypercholesterolemia was highly prevalent even in countries of different socioeconomic levels. The prevalence of diabetes ranged between 7% and 9% in Mexico City, Bogotá and Santiago de Chile. Tobacco use was high in both sexes in Santiago and Buenos Aires. Abdominal obesity and the metabolic syndrome were more prevalent in women of low resources. Intima-media thickness and carotid plaque prevalence varied widely. The epidemiological data obtained in the CARMELA study complete the outlook of the cardiovascular risk in our region and indicate the need of rationale urban health policies.

Hypertension in seven Latin American cities: the Cardiovascular Risk Factor Multiple Evaluation in Latin America (CARMELA) study.

BACKGROUND: Little information is available regarding hypertension, treatment, and control in urban population of Latin America. OBJECTIVE: We aimed to compare blood pressure (BP) distribution, hypertension prevalence, treatment, and control in seven Latin American cities following standard methodology. METHODS: The Cardiovascular Risk Factor Multiple Evaluation in Latin America (CARMELA) study was a cross-sectional, epidemiologic study assessing cardiovascular risk factors using stratified multistage sampling of adult populations (aged 25-64 years) in seven cities: Barquisimeto (Venezuela; n = 1848); Bogotá (n = 1553); Buenos Aires (n = 1482); Lima (n = 1652); Mexico City (n = 1720); Quito (n = 1638); and Santiago (n = 1655). The prevalence of hypertension and high normal BP were determined based on 2007 European Society of Hypertension and European Society of Cardiology definitions. RESULTS: BP increased with age in men and women; pulse pressure increased mainly in the upper age group. The hypertension prevalence ranged from 9% in Quito to 29% in Buenos Aires. One-quarter to one-half of the hypertension cases were previously undiagnosed (24% in Mexico City to 47% in Lima); uncontrolled hypertension ranged from 12% (Lima) to 41% (Mexico City). High normal BP was also evident in a substantial number of each city participants (approximately 5-15%). Majority of population has other cardiovascular risk factors despite hypertension; only 9.19% of participants have no risk factors apart from hypertension. CONCLUSION: From 13.4 to 44.2% of the populations of seven major Latin American cities were hypertensive or had high normal BP values. Most hypertensive patients have additional risk factors. Public health programs need to target prevention, detection, treatment, and control of total cardiovascular risk in Latin America.

Attributable risks for acute myocardial infarction in four countries of Latin America.

This multicenter case control study investigated, in four countries of America, the proportions of acute myocardial infarction (AMI) attributable to cholesterol, smoking, hypertension, body mass index, diabetes and family history of coronary heart disease (attributable risks, AR). AR were estimated using information from 1060 cases of AMI and 1071 controls from Argentina, 323 cases of AMI and 314 controls from Cuba, 200 cases of AMI and 200 controls from Mexico and 266 cases of AMI and 264 controls from Venezuela. AR were obtained from the prevalence of coronary risk factors in the cases and the corresponding Odds Ratio (OR) derived through appropriate multivariate models. The AR for AMI observed for hypercholesterolaemia were the following: Venezuela 27%, Mexico 3%, Cuba 30% and Argentina 36%; for diabetes: Venezuela 10%, Mexico 15%, Cuba 5% and Argentina 7% and for body mass Index: Venezuela 12%, Mexico 3%, Cuba 19% and Argentina 17%. The same risk factor may have a different attributable risk in different populations. Together, hypercholesterolaemia, hypertension, smoking, diabetes, body mass index and family history of coronary heart disease accounted for 76% of all cases of AMI in Venezuela, 70% in Mexico, 81% in Cuba and 79% in Argentina. The knowledge of attributable risks could have important implications for public health strategies, especially in those countries with limited health care resources.

Attributable risks for acute myocardial infarction in four countries of Latin America

This multicenter case control study investigated, in four countries of America, the proportions of acute myocardial infarction (AMI) attributable to cholesterol, smoking, hypertension, body mass index, diabetes and family history of coronary heart disease (attributable risks, AR). AR were estimated using information from 1060 cases of AMI and 1071 controls from Argentina, 323 cases of AMI and 314 controls from Cuba, 200 cases of AMI and 200 controls from Mexico and 266 cases of AMI and 264 controls from Venezuela. AR were obtained from the prevalence of coronary risk factors in the cases and the corresponding Odds Ratio (OR) derived through appropriate multivariate models. The AR for AMI observed for hypercholesterolaemia were the following: Venezuela 27%, Mexico 3%, Cuba 30% and Argentina 36%; for diabetes: Venezuela 10%, Mexico 15%, Cuba 5% and Argentina 7% and for body mass Index: Venezuela 12%, Mexico 3%, Cuba 19% and Argentina 17%. The same risk factor may have a different attributable risk in different populations. Together, hypercholesterolaemia, hypertension, smoking, diabetes, body mass index and family history of coronary heart disease accounted for 76% of all cases of AMI in Venezuela, 70% in Mexico, 81% in Cuba and 79% in Argentina. The knowledge of attributable risks could have important implications for public health strategies, especially in those countries with limited health care resources.

Attributable risks for acute myocardial infarction in four countries of Latin America

This multicenter case control study investigated, in four countries of America, the proportions of acute myocardial infarction (AMI) attributable to cholesterol, smoking, hypertension, body mass index, diabetes and family history of coronary heart disease (attributable risks, AR). AR were estimated using information from 1060 cases of AMI and 1071 controls from Argentina, 323 cases of AMI and 314 controls from Cuba, 200 cases of AMI and 200 controls from Mexico and 266 cases of AMI and 264 controls from Venezuela. AR were obtained from the prevalence of coronary risk factors in the cases and the corresponding Odds Ratio (OR) derived through appropriate multivariate models. The AR for AMI observed for hypercholesterolaemia were the following: Venezuela 27%, Mexico 3%, Cuba 30% and Argentina 36%; for diabetes: Venezuela 10%, Mexico 15%, Cuba 5% and Argentina 7% and for body mass Index: Venezuela 12%, Mexico 3%, Cuba 19% and Argentina 17%. The same risk factor may have a different attributable risk in different populations. Together, hypercholesterolaemia, hypertension, smoking, diabetes, body mass index and family history of coronary heart disease accounted for 76% of all cases of AMI in Venezuela, 70% in Mexico, 81% in Cuba and 79% in Argentina. The knowledge of attributable risks could have important implications for public health strategies, especially in those countries with limited health care resources.(AU)

Attributable risks for acute myocardial infarction in four countries of Latin America.

This multicenter case control study investigated, in four countries of America, the proportions of acute myocardial infarction (AMI) attributable to cholesterol, smoking, hypertension, body mass index, diabetes and family history of coronary heart disease (attributable risks, AR). AR were estimated using information from 1060 cases of AMI and 1071 controls from Argentina, 323 cases of AMI and 314 controls from Cuba, 200 cases of AMI and 200 controls from Mexico and 266 cases of AMI and 264 controls from Venezuela. AR were obtained from the prevalence of coronary risk factors in the cases and the corresponding Odds Ratio (OR) derived through appropriate multivariate models. The AR for AMI observed for hypercholesterolaemia were the following: Venezuela 27

, Mexico 3

, Cuba 30

and Argentina 36

; for diabetes: Venezuela 10

, Mexico 15

, Cuba 5

and Argentina 7

and for body mass Index: Venezuela 12

, Mexico 3

, Cuba 19

and Argentina 17

. The same risk factor may have a different attributable risk in different populations. Together, hypercholesterolaemia, hypertension, smoking, diabetes, body mass index and family history of coronary heart disease accounted for 76

of all cases of AMI in Venezuela, 70

in Mexico, 81

in Cuba and 79

in Argentina. The knowledge of attributable risks could have important implications for public health strategies, especially in those countries with limited health care resources.

[Advanced age and risk factors for acute myocardial infarction]. / Edad avanzada y factores de riesgo para infarto agudo de miocardio.

This case-control study, analyzed the role of coronary risk factors in acute myocardial infarction (AMI) in the elderly, and established the nature of this association and the degree of risk. Data were derived from an investigation (1060 cases and 1071 controls) conducted in 35 coronary care units from clinical centres in Argentina between November 1991 and August 1994. Our analysis was based on data collected from subjects over age 65. Cases were 427 patients with AMI and without history of ischaemic heart disease. Controls were 396 subjects identified in the same centres as the cases. Odds ratios (OR) estimates and their 95% confidence intervals (CI) were derived from multiple logistic regression equations including terms for age, education, social status, smoking status, history of diabetes or hypertension, body mass index and family history of coronary heart disease. The risk factors independently and strongly related to the risk of AMI were the following: hyperlipidemia (serum cholesterol > or = 240 mg/dl): OR = 1.76 (95% CI: 1.25-2.49), smoking habits: OR = 1.6 (95% CI: 1.06-2.4), hypertension: OR = 2.05 (95% CI: 1.51-2.73), diabetes OR = 1.71 (95% CI: 1.12-2.70), one relative with family history of coronary heart disease: OR = 1.36 (95% CI: 0.93-1.97) and two or more relatives: OR = 2.63 (95% CI: 1.21-5.71). This study confirms in the elderly the importance of hyperlipidemia, tobacco, hypertension, diabetes and family history of coronary heart disease as risks factors of AMI.

Edad avanzada y factores de riesgo para infarto agudo de miocardio. / [Advanced age and risk factors for acute myocardial infarction]

This case-control study, analyzed the role of coronary risk factors in acute myocardial infarction (AMI) in the elderly, and established the nature of this association and the degree of risk. Data were derived from an investigation (1060 cases and 1071 controls) conducted in 35 coronary care units from clinical centres in Argentina between November 1991 and August 1994. Our analysis was based on data collected from subjects over age 65. Cases were 427 patients with AMI and without history of ischaemic heart disease. Controls were 396 subjects identified in the same centres as the cases. Odds ratios (OR) estimates and their 95

confidence intervals (CI) were derived from multiple logistic regression equations including terms for age, education, social status, smoking status, history of diabetes or hypertension, body mass index and family history of coronary heart disease. The risk factors independently and strongly related to the risk of AMI were the following: hyperlipidemia (serum cholesterol > or = 240 mg/dl): OR = 1.76 (95

CI: 1.25-2.49), smoking habits: OR = 1.6 (95

CI: 1.06-2.4), hypertension: OR = 2.05 (95

CI: 1.51-2.73), diabetes OR = 1.71 (95

CI: 1.12-2.70), one relative with family history of coronary heart disease: OR = 1.36 (95

CI: 0.93-1.97) and two or more relatives: OR = 2.63 (95

CI: 1.21-5.71). This study confirms in the elderly the importance of hyperlipidemia, tobacco, hypertension, diabetes and family history of coronary heart disease as risks factors of AMI.

La menopausia como factor de riesgo cardiovascular: valoración del tratamiento de sustitución hormonal / Menopause and risk of cardiovascular disease: effects of hormone replacement therapy

En este estudio se evaluaron los factores de riesgo tales como hipertensión arterial, diabetes, etc. La menopausia compartiría el riesgo con la edad, para otros sería el condicionante para su desarrollo, tal como el incremento del índice de masa corporal, etc,. El estrógeno natural, en forma de reemplazo durante la posmenopausia, ha demostrado modificar beneficiosamente algunos factores de riesgo, y a través de esta acción podría reducir el riesgo de padecer un evento cardiovascular, pero la terapia hormonal de reemplazo no es ampliamente aceptada. En su mayoría las mujeres no se encuentran concientes del riesgo que representa la enfermedad aterosclerótica y por lo tanto no realizan chequeos para la detección de los factores de riesgo y su modificación con la misma voluntad que realizan los exámenes de detección precoz del cáncer ginecológico

La menopausia como factor de riesgo cardiovascular: valoración del tratamiento de sustitución hormonal / Menopause and risk of cardiovascular disease: effects of hormone replacement therapy

En este estudio se evaluaron los factores de riesgo tales como hipertensión arterial, diabetes, etc. La menopausia compartiría el riesgo con la edad, para otros sería el condicionante para su desarrollo, tal como el incremento del índice de masa corporal, etc,. El estrógeno natural, en forma de reemplazo durante la posmenopausia, ha demostrado modificar beneficiosamente algunos factores de riesgo, y a través de esta acción podría reducir el riesgo de padecer un evento cardiovascular, pero la terapia hormonal de reemplazo no es ampliamente aceptada. En su mayoría las mujeres no se encuentran concientes del riesgo que representa la enfermedad aterosclerótica y por lo tanto no realizan chequeos para la detección de los factores de riesgo y su modificación con la misma voluntad que realizan los exámenes de detección precoz del cáncer ginecológico (AU)

Indice de masa corporal en los adolescentes. Asociación con otros factores de riesgo coronario. Programa FRICELA: informe preliminar / Body mass index in adolescents. Association with other coronary heart disease risk factors. FRICELA program: preliminary inform

Relacionamos en 300 adolescentes de ambos sexos, entre 12 y 19 años, el índice de masa corporal con otros factores de riesgo coronario. Fueron 115 varones y 194 mujeres. El IMC (Indice de Quetelet: kg/m²) para los varones fue 21,69 ñ 4,37 y para las mujeres 21,87 ñ 4,64 (p = NS). Se realizó un análisis de correlación entre el IMC y el colesterol y la tensión arterial sistólica y diastólica. Con el colesterol se halló un r = 0,17 (IC 95 por ciento 0,06-0,27) con una p < 0,01. Para la tensión arterial sistólica fue un r = 0,35 (IC 95 por ciento 0,25-0,44) con una p < 0,001 y en el caso de la tensión arterial diastólicase halló un r = 0,23 (IC 95 por ciento 0,12-0,33) con una p < 0,001. El IMC en los jóvenes fue superior en aquellos que referían tener padres obesos y se correlacionó de manera directa con el colesterol plasmático y la tensión arterial sistólica y diastólica