Modelo de regresión logística aplicado a un estudio sobre enfermedad de Chagas

Abstract

The focus of this paper is the application of statistical models to the study of socioeconomic conditioning factors in perinatal Chagas' disease conducted in Rosario, Argentina. A case (154) and control (158) design was applied to investigate socioeconomic and cultural differences in pregnant women in Hospital Roque Sáenz Peña as to their infection status. Logistic regression models were used to evaluate the importance of antecedents linked to the infection and socioeconomic and cultural factors for infection status. For pregnant women, the importance of antecedents linked to the infection was confirmed and the women's level of schooling stood out as the predominant socioeconomic condition associated with infection. Log-linear models were used to explore the associations between certain explanatory variables. This approach pointed up the most relevant associations between such factors and Chagas' disease and provided a better understanding of the framework of relationships among them.

Does my patient have chronic Chagas disease? Development and temporal validation of a diagnostic risk score

“…Past studies investigated the use of several potential determinants of Chagas disease, such as recognizing the kissing bug or reporting living in places with kissing bugs (22) (23) (24) (25) (26) (27) , previous knowledge of the vector (28) (29) , reporting being bitten by the kissing bug (24) , reporting living in mud houses or in rural areas (22) (23) (28) (29) (30) (31) , Latin America as a place of birth or destination of previous travel (22) (32) , reporting receiving blood transfusions in the past (27) (33) , reporting blood donations in the past (26) (30) , education (22) (28) (30) (33) , social condition or income (22) (30) , reporting siblings or relatives with Chagas disease (23) (26) (27) , sex (26) (31) , and age (26) (28) (30) (31) (33) . However, they were all investigated under different conditions (blood bank screening, vertical transmission screening, and in rural area inhabitants) for different purposes, resulting in substantially different results from this research.…”

Los problemas de salud también explican la utilización de servicios sociales en atención domiciliaria

“…En los modelos finales se han seleccionado los factores que presentaban valores de significación estadística o5% y se ha realizado con el método de paso a paso hacia atrás. Los resultados finales se han expresado en odds ratio (OR) y se han estimado los intervalos de confianza (IC) del 95% 6,7 .…”

Los modelos de niveles múltiples: una estrategia analítica para el estudio de los problemas de salud de la población

“…Asimismo se realizaron indagaciones parciales para encontrar interrelaciones entre las condiciones biológicas del niño, las conductas de la madre y la adopción de ciertas prácticas asistenciales en la atención del parto y el recién nacido. Se logró de esta forma no sólo valorar las asociaciones más relevantes entre los factores analizados y la enfermedad de Chagas, sino también una mejor comprensión acerca de la trama de relaciones existentes entre ellos 23,24 .…”