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Gaceta Sanitaria

versión impresa ISSN 0213-9111


CASTILLA, Jesús et al. Characteristics and trends of newly diagnosed HIV-infections, 2000-2004. Gac Sanit [online]. 2006, vol.20, n.6, pp.442-448. ISSN 0213-9111.

Objective: To describe the characteristics and trends of newly diagnosed HIV-infections. Methods: We analysed all newly diagnosed HIV-infections among residents of the Canary Islands, Ceuta, La Rioja, Navarre and the Basque Country (Spain) between 2000 and 2004. Results: In total, 1,807 HIV-infections ­74.4 per million inhabitants, per year­ were diagnosed. The heterosexual transmission category was the most frequent (48.6%), followed by that of homo/bisexual men (23.0%) and injecting drug users (IDU) (22.5%). From 2000 to 2004, the rate of new diagnoses of HIV infection decreased by 29.8% (p < 0.0001). The rate of diagnoses of infections acquired by IDU diminished by 58.5% (p < 0.0001), and the rate of infections associated with homo/bisexual practices in men descended by 33.9% (p = 0.0318). Nevertheless, the rate of diagnoses of infections by heterosexual transmission has not undergone significant changes. In the period 2002-2004, 28.7% of cases were diagnosed in foreigners, but the rate of diagnoses in the population of non-Spanish origin diminished by 24% (p = 0.0534). 39.7% of HIV diagnoses were delayed (with CD4 < 200 cells/microlitre or coinciding with the diagnosis of AIDS). This situation was less frequent in women (odds ratio = 0.5; p < 0.001) and increased with age amongst people over 30. The proportion of delayed diagnoses reached a maximum in 2001 (47.5%) and then declined until 2004 (38.6%; p = 0.022). Conclusions: Although none of the analysed indicators evolved unfavourably, it is important to insist on the prevention of sexual transmission, the early diagnosis of HIV infection, and the need to adapt preventive activities and focus them on people from other countries.

Palabras clave : HIV infection; Immigration; Epidemiology; Spain.

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