RT Journal Article T1 Determinants of HIV-1 Late Presentation in Patients Followed in Europe. A1 Miranda, Mafalda N. S. A1 Pingarilho, Marta A1 Pimentel, Victor A1 Martins, Maria do Rosário O. A1 Vandamme, Anne-Mieke A1 Bobkova, Marina A1 Böhm, Michael A1 Seguin-Devaux, Carole A1 Paredes, Roger A1 Zazzi, Maurizio A1 Rubio García, Rafael A1 Incardona, Francesca A1 Abecasis, Ana AB To control the Human Immunodeficiency Virus (HIV) pandemic, the World Health Organization (WHO) set the 90-90-90 target to be reached by 2020. One major threat to those goals is late presentation, which is defined as an individual presenting a TCD4+ count lower than 350 cells/mm3 or an AIDS-defining event. The present study aims to identify determinants of late presentation in Europe based on the EuResist database with HIV-1 infected patients followed-up between 1981 and 2019. Our study includes clinical and socio-demographic information from 89851 HIV-1 infected patients. Statistical analysis was performed using RStudio and SPSS and a Bayesian network was constructed with the WEKA software to analyze the association between all variables. Among 89,851 HIV-1 infected patients included in the analysis, the median age was 33 (IQR: 27.0–41.0) years and 74.4% were males. Of those, 28,889 patients (50.4%) were late presenters. Older patients (>56), heterosexuals, patients originated from Africa and patients presenting with log VL >4.1 had a higher probability of being late presenters (p < 0.001). Bayesian networks indicated VL, mode of transmission, age and recentness of infection as variables that were directly associated with LP. This study highlights the major determinants associated with late presentation in Europe. This study helps to direct prevention measures for this population. PB MDPI YR 2021 FD 2021-07-02 LK https://hdl.handle.net/20.500.14352/105353 UL https://hdl.handle.net/20.500.14352/105353 LA eng NO Miranda MNS, Pingarilho M, Pimentel V, Martins MDRO, Vandamme AM, Bobkova M, Böhm M, Seguin-Devaux C, Paredes R, Rubio R, Zazzi M, Incardona F, Abecasis A. Determinants of HIV-1 Late Presentation in Patients Followed in Europe. Pathogens. 2021 Jul 2;10(7):835. DS Docta Complutense RD 24 abr 2025