Background: Information on testing units in health care is scarce, particularly the group of late-presenters among the HIV-first diagnoses is still a challenge in Germany., Aim: Analysis of the impact of testing units on and reasons for the prevalence of HIV-first diagnoses and late presentation, taking 2014 for illustrative purposes., Material and Methods: Cross-sectional analysis of all individuals, treated in the Network HIV-Regional who were first diagnosed with HIV in 2014; patient characteristics, demographic and clinical data, including information on HIV testing were collected retrospectively and in a decentralised manner, pseudonymized and statistically evaluated., Results: A total of 971 individuals with HIV-first diagnosis from 31 specialised care centres throughout Germany (15 hospitals, 16 private practices) represented 27.5% of all National HIV-first diagnoses -registrations from Robert Koch Institute for 2014, with similar results for CD4-cell count and HIV-transmission risk. The most common test site was a hospital (34.8%), followed by the office of a family doctor (19.6%) and medical specialist (16.1%). If the first diagnosis was established in hospital, then the patients were on average older than those tested on an ambulant care basis (42 vs. 37 years, p=0.001); moreover, the HI-viral load was higher (585 vs. 270 thousand copies/mL, p<0.001) and the CD4-cell count lower (265 vs. 414/µL, p<0.001). In 208/971 individuals with first diagnosis, at least one AIDS-defining disease was found, most frequently pneumocystis-pneumonia (43.8%), candidiasis (36.5%) and Kaposi sarcoma (10.6%). A regional comparison revealed that in eastern Germany, for first diagnosed HIV-patients were younger, had a higher HIV-RNA viral load and also more often clinical AIDS., Conclusion: This analysis of HIV-Regional for 2014 enables a deeper insight into HIV first diagnoses, on the eve of the introduction of important prevention tools in Germany, e. g., HIV home testing and pre-exposure prophylaxis. This cross-sectional analysis was representative for Germany and underscores the importance of specialised hospitals, in particular for eastern Germany, and furthermore the involvement of late-presenters into HIV health care., Competing Interests: B.T. Schleenvoigt erhielt Honorare und finanzielle Unterstützung von Gilead, MSD, Janssen-Cilag, Pfizer, ViiV, AIDS-Hilfe Potsdam, AIDS-Hilfe Dresden, RG Ges. f. Information und Organisation mbH, CRM und Merck außerhalb der vorliegenden Arbeit. H. Stocker erhielt Honorare von Gilead, Janssen, MSD und ViiV außerhalb der vorliegenden Arbeit. A. Stoehr erhielt Honorare und finanzielle Unterstützung von Abbvie, Gilead, Janssen, MSD und VIIV außerhalb der vorliegenden Arbeit. C. Schulz erhielt öffentliche Förderungen von DZIF, Bayresq.net und der Else Kröner Stiftung außerhalb der vorliegenden Arbeit.H. Wesselmann erhielt Honorare von MSD, ViiV und BMS außerhalb der vorliegenden Arbeit.O. Degen erhielt Honorare und finanzielle Unterstützung von ViiV Healthcare, Janssen, MSD Gilead Sciences und Theratechnologies außerhalb der vorliegenden Arbeit.U. Seybold erhielt Honorare und finanzielle Unterstützung von Gilead Sciences GmbH, ViiV Healthcare GmbH, RG Ges. f. Information und Organisation mbH, and more Media GmbH, Bristol Myers Squibb GmbH, MSD Sharp & Dohme GmbH, Janssen Cilag GmbH, FomF GmbH, Springer Medizin Verlag, med update GmbH, promedicis GmbH, Sanofi-Aventis GmbH, Falk Foundation e.V., BAGNÄ e.V. außerhalb der vorliegenden Arbeit. C. Stephan und A. Haberl erhielten Honorare und finanzielle Unterstützung von Gilead, Janssen-Cilag, MSD, Merck, Roche, Shionogi, ViiV, Astellas und TAD außerhalb der vorliegenden Arbeit. J. Ankert, M. Bickel, C. Lehmann und M.W. Pletz geben an, dass keine Interessenkonflikte in Zusammenhang mit der vorliegenden Studie bestehen., (Thieme. All rights reserved.)