The denominator problem: Estimating MSM-specific incidence of sexually transmitted infections and prevalence of HIV using population sizes of MSM derived from Internet surveys

door Marcus, Ulrich, Schmidt, Axel J, Kollan, Christian, Hamouda, Osamah
Gepubliceerd in 2009

Immunological recovery in tuberculosis/HIV co-infected patients on antiretroviral therapy: implication for tuberculosis preventive therapy

door Karo, Basel, Krause, Gérard, Castell, Stefanie, Kollan, Christian, Hamouda, Osamah, Haas, Walter
Gepubliceerd in BMC Infect Dis (2017)

High variability of TB, HIV, hepatitis C treatment and opioid substitution therapy among prisoners in Germany

door Müller, Jana, Schmidt, Daniel, Kollan, Christian, Lehmann, Marc, Bremer, Viviane, Zimmermann, Ruth
Gepubliceerd in BMC Public Health (2017)

Tuberculosis among people living with HIV/AIDS in the German ClinSurv HIV Cohort: long-term incidence and risk factors

door Karo, Basel, Haas, Walter, Kollan, Christian, Gunsenheimer-Bartmeyer, Barbara, Hamouda, Osamah, Fiebig, Lena
Gepubliceerd in 2014

CD4-cell counts and presence of AIDS in HIV-positive patients entering specialized care—a comparison of migrant groups in the German ClinSurv HIV Cohort Study, 1999–2013

door Zeitlmann, Nadine, Gunsenheimer-Bartmeyer, Barbara, Santos-Hövener, Claudia, Kollan, Christian, an der Heiden, Matthias
Gepubliceerd in BMC Infect Dis (2016)

Everything counts - a method to determine viral suppression among people living with HIV using longitudinal data for the HIV care continuum - results of two large, German, multi-ce...

door Schmidt, Daniel, Kollan, Christian, Stoll, Matthias, Hamouda, Osamah, Bremer, Viviane, Kurth, Tobias, Bartmeyer, Barbara
Gepubliceerd in BMC Public Health (2021)

HIV-Prevalence in Tuberculosis Patients in Germany, 2002–2009: An Estimation Based on HIV and Tuberculosis Surveillance Data

door Fiebig, Lena, Kollan, Christian, Hauer, Barbara, Gunsenheimer-Bartmeyer, Barbara, an der Heiden, Matthias, Hamouda, Osamah, Haas, Walter
Gepubliceerd in 2012

Wie wirken Generikaquoten? Eine Analyse am Beispiel der HIV-Infektion

door Rüsenberg, Robin, Baumgarten, Axel, Mauss, Stefan, Gradl, Gabriele, Schulz, Martin, Bartmeyer, Barbara, Kollan, Christian, Schmidt, Daniel
Gepubliceerd in Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz (2021)

Prevalence of Transmitted Drug Resistance and Impact of Transmitted Resistance on Treatment Success in the German HIV-1 Seroconverter Cohort

door Bartmeyer, Barbara, Kuecherer, Claudia, Houareau, Claudia, Werning, Johanna, Keeren, Kathrin, Somogyi, Sybille, Kollan, Christian, Jessen, Heiko, Dupke, Stephan, Hamouda, Osamah
Gepubliceerd in 2010

Increasing Number of Individuals Receiving Hepatitis B nucleos(t)ide Analogs Therapy in Germany, 2008–2019

door Maisa, Anna, Kollan, Christian, an der Heiden, Matthias, van Bömmel, Florian, Cornberg, Markus, Mauss, Stefan, Wedemeyer, Heiner, Schmidt, Daniel, Dudareva, Sandra
Gepubliceerd in Front Public Health (2021)

580. Key Factors for Treatment Changes Within 1 Year After Starting ART in the German ClinSurv Cohort: Between 2005 and 2014

door Stecher, Melanie, Hamacher, Laura, Platten, Martin, Schommers, Philipp, Lehmann, Clara, Dold, Leona, Kollan, Christian, Schmidt, Daniel, Gunsenheimer-Bartmeyer, Barbara, Vehreschild, Janne
Gepubliceerd in Open Forum Infect Dis (2018)

Completeness of tuberculosis case notifications in Germany in 2013–2017: first results of an inventory study

door Domaszewska, Teresa, Karo, Basel, Preuss, Ute, Kollan, Christian, Reuss, Annicka, Blank, Hans-Peter, Brodhun, Bonita, Hauer, Barbara, Altmann, Doris, Fiebig, Lena, Haas, Walter, Perumal, Nita
Gepubliceerd in BMC Infect Dis (2020)

Cost-effectiveness and budget effect of pre-exposure prophylaxis for HIV-1 prevention in Germany from 2018 to 2058

door van de Vijver, David A M C, Richter, Ann-Kathrin, Boucher, Charles A B, Gunsenheimer-Bartmeyer, Barbara, Kollan, Christian, Nichols, Brooke E, Spinner, Christoph D, Wasem, Jürgen, Schewe, Knud, Neumann, Anja
Gepubliceerd in Euro Surveill (2019)

Estimating Trends in the Proportion of Transmitted and Acquired HIV Drug Resistance in a Long Term Observational Cohort in Germany

door Schmidt, Daniel, Kollan, Christian, Fätkenheuer, Gerd, Schülter, Eugen, Stellbrink, Hans-Jürgen, Noah, Christian, Jensen, Björn-Erik Ole, Stoll, Matthias, Bogner, Johannes R., Eberle, Josef, Meixenberger, Karolin, Kücherer, Claudia, Hamouda, Osamah, Bartmeyer, Barbara
Gepubliceerd in 2014

Calculation of Direct Antiretroviral Treatment Costs and Potential Cost Savings by Using Generics in the German HIV ClinSurv Cohort

door Stoll, Matthias, Kollan, Christian, Bergmann, Frank, Bogner, Johannes, Faetkenheuer, Gerd, Fritzsche, Carlos, Hoeper, Kirsten, Horst, Heinz-August, van Lunzen, Jan, Plettenberg, Andreas, Reuter, Stefan, Rockstroh, Jürgen, Stellbrink, Hans-Jürgen, Hamouda, Osamah, Bartmeyer, Barbara
Gepubliceerd in 2011

From pills to patients: an evaluation of data sources to determine the number of people living with HIV who are receiving antiretroviral therapy in Germany

door Schmidt, Daniel, Kollan, Christian, Stoll, Matthias, Stellbrink, Hans-Jürgen, Plettenberg, Andreas, Fätkenheuer, Gerd, Bergmann, Frank, Bogner, Johannes R, van Lunzen, Jan, Rockstroh, Jürgen, Esser, Stefan, Jensen, Björn-Erik Ole, Horst, Heinz-August, Fritzsche, Carlos, Kühne, Andrea, an der Heiden, Matthias, Hamouda, Osamah, Bartmeyer, Barbara
Gepubliceerd in BMC Public Health (2015)

Treatment modification after starting cART in people living with HIV: retrospective analysis of the German ClinSurv HIV Cohort 2005–2017

door Stecher, Melanie, Schommers, Philipp, Kollan, Christian, Stoll, Matthias, Kuhlendahl, Frieder, Stellbrink, Hans-Jürgen, Wasmuth, Jan-Christian, Stephan, Christoph, Hamacher, Laura, Lehmann, Clara, Boesecke, Christoph, Bogner, Johannes, Esser, Stefan, Fritzsche, Carlos, Haberl, Annette, Schürmann, Dirk, Degen, Olaf, Horst, Heinz-August, Hoffmann, Christian, Jensen, Björn, Schwarze-Zander, Carolynne, Platten, Martin, Fätkenheuer, Gerd, Schmidt, Daniel, Gunsenheimer-Bartmeyer, Barbara, Vehreschild, Jörg Janne
Gepubliceerd in Infection (2020)