Relación entre la satisfacción laboral y la cultura de seguridad del paciente

Resumen: Objetivo: Evaluar la relación existente entre la cultura de seguridad y la satisfacción laboral en un hospital de media-larga estancia, evidenciar las relaciones existentes entre las dimensiones que definen ambos constructos e identificar las dimensiones con mayor impacto sobre las dos variables. Métodos: Estudio transversal realizado en 2015, utilizando la Encuesta de Satisfacción Laboral del Servicio Vasco de Salud y la versión española del cuestionario Hospital Survey on Patient Safety (Agency for Healthcare Research and Quality). Variables resultado: alta satisfacción laboral y alta seguridad percibida (puntuación igual o superior al percentil 75). Variables predictoras: características sociodemográficas y percepción de las dimensiones evaluadas. La asociación entre variables se cuantificó mediante odds ratio (OR) ajustada y su intervalo de confianza del 95%. Resultados: La satisfacción laboral media fue de 7,21 (desviación estándar [DE]: 2,01) y la seguridad percibida fue de 7,48 (DE: 1,98). El percentil 75 de la distribución en ambos casos fue 9. Las variables sociodemográficas presentaron escasa significación, mientras que una buena percepción de muchas de las dimensiones consideradas sí se asoció a las variables resultado. En el análisis de datos se obtuvieron múltiples correlaciones significativas y relaciones cruzadas entre las dimensiones que definen ambos constructos, así como entre el grado de satisfacción de las dimensiones consideradas y las variables resultado. Conclusión: Los resultados evidencian que existe relación entre la satisfacción laboral y la cultura de seguridad, y cuantifican el grado de asociación entre las variables estudiadas. La OR ajustada identifica las variables más fuertemente asociadas con el efecto y ayuda a seleccionar áreas de mejora. Abstract: Objective: To evaluate the relationship between safety culture and job satisfaction in a medium-stay hospital, showing the relationships between the dimensions that define both constructs and identifying the dimensions with the greatest impact on both variables. Methods: Cross-sectional study conducted in 2015, using the Basque Health Service Job Satisfaction Survey and the Spanish version of the «Hospital Survey on Patient Safety» questionnaire (Agency for Healthcare Research and Quality). Result Variables: high job satisfaction and high degree of perceived security (score ≥75th percentile). Predictor variables: socio-demographic characteristics and perception of the evaluated dimensions. The association between variables was quantified by adjusted odds ratio (OR) and the 95% confidence interval. Results: The mean job satisfaction was 7.21 (standard deviation [SD]: 2.01) and the mean of perceived safety was 7.48 (SD = 1.98). The 75th percentile of the distribution in both cases was 9. The socio-demographic variables had little significance, while a positive perception of many of the considered dimensions, was associated with high perception of the result variables. In the data analysis were obtained multiple significant correlations and cross-relations between the dimensions that define both constructs, as well as between the degree of satisfaction of the dimensions considered and the outcome variables. Conclusion: The results obtained evidenced the relationship between job satisfaction and safety culture and quantify the association degree between the studied variables. The adjusted OR identifies the variables most strongly associated with the effect and helps to select improvement areas. Palabras clave: Satisfacción laboral, Cultura de seguridad, Seguridad del paciente, Organizaciones sanitarias, Keywords: Job satisfaction, Safety culture, Patient safety, Health care organization

Quorum sensing network in clinical strains of A. baumannii : AidA is a new quorum quenching enzyme

Acinetobacter baumannii is an important pathogen that causes nosocomial infections generally associated with high mortality and morbidity in Intensive Care Units (ICUs). Currently, little is known about the Quorum Sensing (QS)/Quorum Quenching (QQ) systems of this pathogen. We analyzed these mechanisms in seven clinical isolates of A. baumannii. Microarray analysis of one of these clinical isolates, Ab1 (A. baumannii ST-2-clon-2010), previously cultured in the presence of 3-oxo-C12-HSL (a QS signalling molecule) revealed a putative QQ enzyme (α/β hydrolase gene, AidA). This QQ enzyme was present in all nonmotile clinical isolates (67% of which were isolated from the respiratory tract) cultured in nutrient depleted LB medium. Interestingly, this gene was not located in the genome of the only motile clinical strain growing in this medium (A. baumannii strain Ab421-GEIH-2010 [Ab7], isolated from a blood sample). The AidA protein expressed in E. coli showed QQ activity. Finally, we observed downregulation of the AidA protein (QQ system attenuation) in the presence of HO (ROS stress). In conclusion, most of the A. baumannii clinical strains were not surface motile (84%) and were of respiratory origin (67%). Only the pilT gene was involved in surface motility and related to the QS system. Finally, a new QQ enzyme (α/β hydrolase gene, AidA protein) was detected in these strains