RESUMEN
OBJECTIVE: To study the prevalence of latent tuberculosis infection (LTBI) and the predictive factors amongst immigrants entering prison. METHODS: prospective study conducted in May and June of 2009. The tuberculin skin test (TST) was performed, with induration of ≥ 10 mm being regarded as positive. Variables collected were: age, origin, number of incarcerations, length of time living in Spain, heroin and cocaine consumption, intravenous drug use and HIV infection. The rate of LTBI was calculated and the overall infection rate (ITL and history of TB). To study predictable factors, a bivariant and multivariant analysis were carried out using logistic regression. RESULTS: 152 male immigrants. Average age: 31.9 years ± 7.8; 37.2% of them with heroin or cocaine consumption and 7.5% IDU. 12 patients were previously TST positive and 6 patients had history of TB. TST was performed on 134 people, 63 with positive results and 71 with negative ones. ITL rate: 49.3. Overall infection rate: 53.3%. Bivariate associated with LTBI: more than one incarceration (67.4% vs. 36.4% in primary, p=0.001), age (76% ≥ 40 vs. 40.4% under this age and heroin and cocaine consumption (60% consumers vs. 39.3% non consumers; p=0.02. Multivariate analysis only confirmed the association with age (p=0.001; OR: 2.34, IC=1.39-3.94). CONCLUSIONS: The LTBI rate amongst immigrants entering prison is very high. A complete study is recommended for all of them, with special attention being paid to the most vulnerable ones, such as older people.
Asunto(s)
Emigrantes e Inmigrantes , Tuberculosis Latente/epidemiología , Prisiones , Adulto , Estudios Transversales , Humanos , Masculino , Prevalencia , Estudios Prospectivos , Factores de Riesgo , EspañaRESUMEN
OBJECTIVE: To study the prevalence of latent tuberculosis infection (LTBI) in prisoners. METHODS: Among inmates admitted to a men's preventive detention prison in Barcelona during May-June 2009, without a previous positive tuberculin skin test (TST), a ≥ 10 mm TST was considered positive (5 mm in human immunodeficiency virus [HIV] infected persons). A multivariate logistic regression was performed, calculating odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS: A total of 221 individuals were included. The average age was 33.5 years (± 8.9 SD); 61.6% were foreigners and 45.2% were heroine and/or cocaine users; 40.3% had LTBI. The infection was associated with age >40 years (OR 3.10, 95%CI 1.51-6.35) and having been born in Eastern Europe (OR 4.3, 95%CI 1.4-12.8), North Africa (OR 2.2, 95%CI 1.01-4.7), sub-Saharan Africa (OR 7.6, 95%CI 1.3-44) or Latin America (OR 3.8, 95%CI 1.5-9.3). Subjects infected with HIV had a lower risk of a positive TST (OR 0.22, 95%CI 0.04-1.07). Only 31 (14%) did not present any of these risk factors, and 8 (25.8%) had LTBI. CONCLUSIONS: The prevalence of LTBI was very high in this study, and systematic screening of all inmates at the time of entry into the prison is therefore recommended. Excluding those who do not fall in any of the high-risk prevalence groups from the evaluation complicates the screening and is not very effective.
Asunto(s)
Tuberculosis Latente/epidemiología , Prisioneros/estadística & datos numéricos , Prisiones/estadística & datos numéricos , Infecciones Oportunistas Relacionadas con el SIDA/epidemiología , Adulto , Factores de Edad , Distribución de Chi-Cuadrado , Coinfección/epidemiología , Intervalos de Confianza , Estudios Transversales , Emigrantes e Inmigrantes/estadística & datos numéricos , Infecciones por VIH/epidemiología , Humanos , Tuberculosis Latente/diagnóstico , Tuberculosis Latente/etnología , Modelos Logísticos , Masculino , Tamizaje Masivo/métodos , Tamizaje Masivo/estadística & datos numéricos , Análisis Multivariante , Oportunidad Relativa , Valor Predictivo de las Pruebas , Prevalencia , Medición de Riesgo , Factores de Riesgo , España/epidemiología , Abuso de Sustancias por Vía Intravenosa/epidemiología , Factores de Tiempo , Prueba de Tuberculina/estadística & datos numéricosRESUMEN
Objetivo: Estudiar la prevalencia de infección tuberculosa latente (ITL) y sus factores predictivos en población reclusa inmigrante. Métodos: Estudio prospectivo realizado en mayo y junio de 2009. Se realizó intradermorreacción de Mantoux (IDRM), considerándose positiva la induración >= 10 mm. Se recogen las variables: edad, origen, reincidencia, tiempo en España, consumo de heroína y/o cocaína, uso de drogas intravenosas e infección VIH. Se calcula la tasa de ITL y la tasa global de infección (ITL más antecedente de tuberculosis). Para estudiar factores predictivos, se realizó un análisis bivariante y multivariante mediante regresión logística. Resultados: Se estudiaron 152 varones inmigrantes al ingreso en prisión. Edad media: 31,9 años ± 7,8. El 37,3% consumidor de heroína y/o cocaína y el 7,5% usuarios de drogas por vía intravenosa (UDI). 12 tenían IDRM previa positiva y 6 antecedente de TB. Se realizó IDRM a 134, 63 con resultado positivo y 71 con resultado negativo. Tasa de ITL: 49,3%. Tasa global de infección: 53,3%. Bivariadamente, se asoció a la ITL: la reincidencia (67,4% vs 36,4% en primarios, p=0,001), la edad (76% en los >= 40 años vs 40,4% en menores de esa edad; p=0,002) y el consumo de heroína y/o cocaína (60% en consumidores vs 39,3% en no consumidores; p= 0,02). El análisis multivariante sólo confirmó la asociación con la edad (p=0,001; OR: 2,34, IC= 1,39-3,94). Conclusiones: La tasa de ITL en inmigrantes que ingresan en prisión es muy elevada. Se recomienda en todos un completo estudio, con especial dedicación a los más vulnerables como los inmigrantes de mayor edad(AU)
Objective: To study the prevalence of latent tuberculosis infection (LTBI) and the predictive factors amongst immigrants entering prison. Methods: prospective study conducted in May and June of 2009. The tuberculin skin test (TST) was performed, with induration of >= 10 mm being regarded as positive. Variables collected were: age, origin, number of incarcerations, length of time living in Spain, heroin and cocaine consumption, intravenous drug use and HIV infection. The rate of LTBI was calculated and the overall infection rate (ITL and history of TB). To study predictable factors, a bivariant and multivariant analysis were carried out using logistic regression. Results: 152 male immigrants. Average age: 31.9 years ± 7.8; 37.2% of them with heroin or cocaine consumption and 7.5% IDU. 12 patients were previously TST positive and 6 patients had history of TB. TST was performed on 134 people, 63 with positive results and 71 with negative ones. ITL rate: 49.3. Overall infection rate: 53.3%. Bivariate associated with LTBI: more than one incarceration (67.4% vs. 36.4% in primary, p=0.001), age (76% >= 40 vs. 40.4% under this age and heroin and cocaine consumption (60% consumers vs. 39.3% non consumers; p=0.02. Multivariate analysis only confirmed the association with age (p=0.001; OR: 2.34, IC=1.39-3.94). Conclusions: The LTBI rate amongst immigrants entering prison is very high. A complete study is recommended for all of them, with special attention being paid to the most vulnerable ones, such as older people(AU)