ABSTRACT
Objective:To analyze the results of syphilis specific serological tests among entry personnel in Beijing port during year 201 2 -201 4 in order to provide evidence for the prevention and control of syphilis.Methods:Demographics data and syphilis specific test results of entry personnel were obtained from the information system of Beijing International Travel Healthcare Center and input into Excel 201 6. Database for entry personnel was built up accordingly and was analyzed by IBMSPSS22.0.Results:The number of entry personnel in Beijing port during year 201 2 -201 4 was 1 06 302 person-time.According to the evaluation criteria,71 308 persons were recruited and analyzed,of whom 277 were tested serologi-cally positive and the total prevalence was 0.39% (95% CI:0.34% -0.43%).The prevalence was highest in the persons aged 40 -49 years (0.81 %)and was higher in males (0.50%)than in females (0.23%).The persons from Africa held higher prevalence (1 .27%)than from other five regions.As multivariate logical regression analysis indicated that the risk of syphilis infection was 1 0.38 times more in the persons aged 40 -49 years than in the persons 0.05).Twenty-seven seropositive cases were found within 6 246 entry persons who were tested repeatedly during the research period,9 of which were seroconversion cases so that the cumulative conversion rate was 0.1 4% (9 /6 228).The average conversion time was (6.3 ±3.0)months.There was no statistical significance between the cu-mulative seroconversion rates of the persons with different genders and nationalities (P of Fisher’s exact test >0.05).Conclusion:Serological detection of syphilis for entry personnel in Beijing port and syphi-lis-related health education should be reinforced to reduce the risk of disease importing and spreading, protect susceptible subjects and promote health.
ABSTRACT
Objetivo: Conocer el comportamiento de la velocidad de conducción nerviosa del nervio mediano a nivel del túnel del carpo asociado al tiempo de exposición al factor de riesgo de movimiento repetitivo de los dedos. Metodología: se realizó un estudio descriptivo transversal en digitadores de dos empresas de la ciudad de Medellín durante los meses de octubre y noviembre de 2005. Se investigaron las variables de edad, sexo, tiempo de exposición laboral, dominancia y los antecedentes patológicos asociados a STC. Se aplicaron las pruebas clínicas y se realizó la medición de la neuroconducción distal del nervio mediano. Resultados: Se evaluaron 55 trabajadores que corresponden a 110 manos. El 86% fueron mujeres, edad promedio de 28 años con un rango de 19 a 40 años; el 91% manifestó ser diestro y el 60% tenía un índice de Masa Corporal normal; el promedio de tiempo como digitador fue de 83 meses con un rango de 12 a 180 meses y una dedicación laboral de 48 horas semanales. Discusión: No se encontró correlación estadísticamente significativa entre el tiempo de exposición laboral y la neuroconducción del mediano, los resultados sugieren la hipótesis de que el hecho de tener como factor único de riesgo la alta frecuencia de movimientos de los dedos no es causal de alteración de la neuroconducción del nervio mediano en el túnel del carpo.
Objetive: This study was carried out in order to know the comportment of the median nerves impulse speed at the carpal tunnel associated to the exposure time to the fingers repetitive motion risk factor. Methodology: This study was applied to data-entry personnel at two companies in the city of Medellin, Colombia, during October and November of 2005. Age, gender, labour exposure time, dominant hand and pathological antecedents associated to the carpal tunnel syndrome variables were investigated. Clinical test and a median nerve conduction test were applied to the workers. Discussion: 55 data-entry workers were evaluated, for a total of 110 hands. The survey included ages between 19 and 40 years old and an average age of 28; 86% of the studied subjects were women; 91% of surveyed subjects declared themselves as right-handed and 60% had a normal weight. Subjects had worked between 12 and 180 months as data-entry personnel with an average time of 83 months, working 48 hours a week. No relevant statistical link was found between labour exposure time and median nerve conduction. Results suggest that doing repetitive movements at work as the only risk factor is not a cause of nerve conduction disorder in the median nerve.