Abstract
To evaluate the impact of immigration on tuberculosis (TB)-HIV co-infection in Spain in a prospective cohort of HIV patients. Among 7761 HIV patients, we evaluated 1284 with at least one episode of TB between 1987 and 2006. Variables were compared between immigrants and Spaniards. Incidence of TB decreased from 20 to five cases per 100 patient-years in 2006 (P<0.01) and was always higher in immigrants than in Spaniards. The proportion of immigrants increased, reaching almost 50% of both new cases of HIV and TB-HIV co-infection in 2006. In 34.4% of patients, TB and HIV infection were diagnosed within the same year; simultaneous diagnosis was more frequent in immigrants (83.3%vs. 16.7%, P<0.001). Mortality was associated independently with age [hazard ratio (HR) 1.03, 95% confidence interval (CI) 1.01-1.05], TB diagnosis before 1996 (HR 2.6, 95% CI 1.8-3.6), use of highly active antiretroviral treatment (HR 0.494, 95% CI 0.37-0.66) and CD4 cell count at TB diagnosis (HR 0.996, 95% CI 0.995-0.997). Immigrants have a major impact on the incidence of TB in HIV patients, slowing down the decreasing trend in Spain. Simultaneous diagnosis of the co-infection in immigrants reveals a need to intensify HIV case finding in immigrants in Spain.
Published Version
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