Mortality patterns in most non-IDU HIV-infected individuals with high CD4 counts on cART are similar to those in the general population. The persistent role of a prior AIDS diagnosis underlines the importance of early diagnosis of HIV infection.
To study the prevalence of Delayed HIV Diagnosis (DHD) and its associated risk factors, to evaluate the effect of DHD on virological and immunological responses to HAART and to estimate the impact of DHD on all-causes mortality. Prospective cohort of 2, 564 HIV-positive HAART-naïve subjects attending 19 hospitals in Spain, 2004-2006. Estimations were made by logistic regression and survival analyses by Cox regression models. Prevalence of DHD was 37.3% (35.0-39.6). DHD was related to low educational level (OR:1.31, 95% CI:1.0-1.7). Compared to men who have sex with men (MSM), DHD was more frequent in heterosexuals (OR:1.9 95% CI:1.5-2.5) and injection drug users (IDUs) (OR:2.0 95% CI:1.5-2.8). An interaction between age and sex was found. Although risk of having DHD did not increase after age 30 in women, it increased linearly with age in men. No differences in virological (OR 1.2 95% CI: 0.8-1.8) and CD4 T cell (OR 1.1 95% CI: 0.7-1.8) responses to HAART were seen. The adjusted hazard ratio for death in patients with DHD was 5.2, (95% CI: 1.9-14.5). DHD is very common, especially in older men, heterosexuals and IDUs. Although we did not find differences in virological and immunological responses to HAART, we did observe higher mortality in people with DHD. Increased efforts to early diagnose HIV infection are urgently needed.
LP is associated with higher mortality, especially short-term- and HIV/AIDS-related mortality. Mid-term-, but not long-term mortality, remained also higher in LP than nLP. LP decreased in MSM and heterosexual men, not in heterosexual women. The groups most affected by LP are low educated, non-Spanish and heterosexual women.
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