Sönmez, Ibrahim; Lorente, Nicolas; Mesías-Gazmuri, Jocelyn; Schmidt, Axel J; Jonas, Kai J; Stuardo Avila, Valeria; Marcus, Ulrich; Veras, Maria Amelia; Casabona Barbarà, Jordi; Folch, Cinta; (2024) Sex work, syndemic conditions and condomless anal intercourse among men who have sex with men who engage in sex work in Latin America. Sexual health, 21 (5). SH23112-. ISSN 1448-5028 DOI: https://doi.org/10.1071/SH23112

Bertisch, Barbara; Schaetti, Christian; Schmid, Patrick; Peter, Laura; Vernazza, Pietro; Isler, Marc; Oppliger, Robert; Schmidt, Axel Jeremias; (2023) Chronic hepatitis C virus infections in Switzerland in 2020: Lower than expected and suggesting achievement of WHO elimination targets. Journal of viral hepatitis, 30 (8). pp. 667-684. ISSN 1352-0504 DOI: https://doi.org/10.1111/jvh.13842

Bertisch, Barbara; Schaetti, Christian; Schmid, Patrick; Peter, Laura; Vernazza, Pietro; Isler, Marc; Oppliger, Robert; Schmidt, Axel Jeremias; (2023) Reply to 'Assessing the hepatitis C epidemiology in Switzerland: It's not that trivial'. Journal of viral hepatitis, 31 (1). pp. 53-56. ISSN 1352-0504 DOI: https://doi.org/10.1111/jvh.13892

Di Ciaccio, Marion; Villes, Virginie; Delabre, Rosemary M; Alain, Tristan; Morel, Stéphane; Michels, David; Schmidt, Axel Jeremias; Velter, Annie; Rojas Castro, Daniela; (2023) When awareness is not a barrier to PrEP uptake among men who have sex with men who are eligible for PrEP in France. AIDS care, 36 (3). pp. 390-399. ISSN 0954-0121 DOI: https://doi.org/10.1080/09540121.2023.2268887

Künzler-Heule, Patrizia; Schmidt, Axel J; Fierz, Katharina; Battegay, Manuel; Engberg, Sandra; Kouyos, Roger D; Nöstlinger, Christiana; Stöckle, Marcel; Béguelin, Charles; Delaloye, Julie; +5 more... Schmid, Patrick; Rougemont, Mathieu; Braun, Dominique L; Fehr, Jan S; Nicca, Dunja; (2023) Exploring group differences in the response to a sexual risk reduction intervention to prevent hepatitis C virus reinfection in HIV-infected MSM: a mixed-methods study. AIDS Care, 36 (4). pp. 442-451. ISSN 0954-0121 DOI: https://doi.org/10.1080/09540121.2023.2208318

Marcus, Ulrich; Jonas, Kai; Berg, Rigmor; Veras, Maria Amelia; Caceres, Carlos F; Casabona, Jordi; Schink, Susanne B; Schmidt, Axel J; (2023) Association of internalised homonegativity with partner notification after diagnosis of syphilis or gonorrhoea among men having sex with men in 49 countries across four continents. BMC public health, 23 (1). 8-. ISSN 1471-2458 DOI: https://doi.org/10.1186/s12889-022-14891-2

Schmidt, Axel Jeremias; Marcus, Ulrich; (2023) What's on the rise in Sexually Transmitted Infections? The Lancet regional health. Europe, 34. 100764-. ISSN 2666-7762 DOI: https://doi.org/10.1016/j.lanepe.2023.100764

Wang, Haoyi; Molina, Jean-Michel; Dray-Spira, Rosemary; Schmidt, Axel J; Hickson, Ford; van de Vijver, David; Jonas, Kai J; (2023) Spatio-temporal changes in pre-exposure prophylaxis uptake among MSM in mainland France between 2016 and 2021: a Bayesian small area approach with MSM population estimation. Journal of the International AIDS Society, 26 (5). e26089-. ISSN 1758-2652 DOI: https://doi.org/10.1002/jia2.26089

Werner, Ricardo Niklas; Schmidt, Axel Jeremias; Potthoff, Anja; Spornraft-Ragaller, Petra; Brockmeyer, Norbert Hermann; German STI Society (DSTIG); (2023) Position statement of the German STI Society on the prophylactic use of doxycycline to prevent STIs (Doxy-PEP, Doxy-PrEP). Journal der Deutschen Dermatologischen Gesellschaft, 22 (3). pp. 466-478. ISSN 1610-0379 DOI: https://doi.org/10.1111/ddg.15282

Ahaus, Patrick; Schmidt, Axel J; Skaletz-Rorowski, Adriane; Uhrmacher, Mona; Serova, Katja; Kayser, Arne; Wach, Janet; Nambiar, Sandeep; Brockmeyer, Norbert H; Potthoff, Anja; (2022) Changes in the user profiles of HIV pre-exposure prophylaxis (PrEP) before and after PrEP reimbursement. Journal of infection and public health, 15 (9). pp. 955-960. ISSN 1876-0341 DOI: https://doi.org/10.1016/j.jiph.2022.07.012

Andresen, Sara; Balakrishna, Suraj; Mugglin, Catrina; Schmidt, Axel J; Braun, Dominique L; Marzel, Alex; Doco Lecompte, Thanh; Darling, Katharine Ea; Roth, Jan A; Schmid, Patrick; +6 more... Bernasconi, Enos; Günthard, Huldrych F; Rauch, Andri; Kouyos, Roger D; Salazar-Vizcaya, Luisa; Swiss HIV Cohort Study; (2022) Unsupervised machine learning predicts future sexual behaviour and sexually transmitted infections among HIV-positive men who have sex with men. PLoS computational biology, 18 (10). e1010559-. ISSN 1553-734X DOI: https://doi.org/10.1371/journal.pcbi.1010559

Appenroth, Max Nicolai; Koppe, Uwe; Hickson, Ford; Schink, Susanne; Hahne, Alexander; Schmidt, Axel J; Weatherburn, Peter; Marcus, Ulrich; (2022) Sexual happiness and satisfaction with sexual safety among German trans men who have sex with men: results from EMIS-2017. Journal of the International AIDS Society, 25 Sup (Suppl ). e25992-. ISSN 1758-2652 DOI: https://doi.org/10.1002/jia2.25992

Avelino-Silva, Vivian Iida; Vasconcelos, Ricardo; Cerqueira, Natalia B; Marcus, Ulrich; Schmidt, Axel Jeremias; Veras, Maria Amelia; (2022) Predictors of knowledge of and access to biomedical prevention among MSM and transgender men in Latin America: Results from the Latin American internet survey. HIV Medicine, 23 (7). pp. 764-773. ISSN 1464-2662 DOI: https://doi.org/10.1111/hiv.13238

Iniesta, Carlos; Folch, Cinta; Meyer, Sebastian; Vázquez, Maria; Casabona, Jordi; Jonas, Kai; Schmidt, Axel J; Díaz, Asunción; (2022) Corrigendum to "Would eligible gay, bisexual and other men who have sex with men use PrEP? Awareness, knowledge, eligibility and intention to use PrEP among EMIS-2017 participants in Spain" [Prev Med 156 (2022) 106962]. Preventive Medicine, 157. 107017-. ISSN 0091-7435 DOI: https://doi.org/10.1016/j.ypmed.2022.107017

Mendez-Lopez, Ana; Hickson, Ford; Jansen, Klaus; Lachowsky, Nathan; Burns, Fiona; Folch, Cinta; Velter, Annie; Weatherburn, Peter; Marcus, Ulrich; von Rüden, Ursula; +5 more... Mirandola, Massimo; Gios, Lorenzo; Frankis, Jamie; Brennan, David J; Schmidt, Axel J; (2022) What is the empirical basis for converting banded ordinal data on numbers of sex partners among MSM into a continuous scale level variable? A secondary analysis of 13 surveys across 17 countries. BMC Medical Research Methodology, 22 (1). 59-. ISSN 1471-2288 DOI: https://doi.org/10.1186/s12874-021-01483-8

Mendez-Lopez, Ana; Stuckler, David; Marcus, Ulrich; Hickson, Ford; Noori, Teymur; Whittaker, Robert N; Jansen, Klaus; Diaz, Asuncion; Henszel, Lukasz; Velter, Annie; +2 more... Semenza, Jan C; Schmidt, Axel J; (2022) Social and behavioural determinants of syphilis: Modelling based on repeated cross-sectional surveys from 2010 and 2017 among 278,256 men who have sex with men in 31 European countries. The Lancet regional health. Europe, 22. 100483-. ISSN 2666-7762 DOI: https://doi.org/10.1016/j.lanepe.2022.100483

Reyes-Díaz, Michael; Celly, Ana; Folch, Cinta; Lorente, Nicolas; Stuardo, Valeria; Veras, Maria Amelia; Barros, Henrique; Meireles, Paula; Ramírez, Dorian; Jonas, Kai J; +4 more... Marcus, Ulrich; Schmidt, Axel J; Caceres, Carlos F; Casabona, Jordi; (2022) Latin American Internet Survey for Men who have Sex with Men (LAMIS-2018): Design, methods and implementation. PloS One, 17 (11). e0277518-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0277518

Schmidt, Axel J; Ross, Michael W; Berg, Rigmor C; Altan, Peyman; (2022) Impact of Migration and Acculturation on Turkish Men Who Have Sex with Men in Germany: Results from the 2010 European MSM Internet Survey. Archives of sexual behavior, 52 (1). pp. 283-290. ISSN 0004-0002 DOI: https://doi.org/10.1007/s10508-022-02468-4

Stojanovski, Kristefer; King, Elizabeth J; Amico, K Rivet; Eisenberg, Marisa C; Geronimus, Arline T; Baros, Sladjana; Schmidt, Axel J; (2022) Stigmatizing Policies Interact with Mental Health and Sexual Behaviours to Structurally Induce HIV Diagnoses Among European Men Who Have Sex with Men. AIDS and Behavior, 26 (10). pp. 3400-3410. ISSN 1090-7165 DOI: https://doi.org/10.1007/s10461-022-03683-9

Sönmez, İbrahim; Berg, Rigmor C; Yazıcılaroğlu, Sami Sarper; Thurlby, Natalie; Schmidt, Axel J; (2022) Comparison of the Influence of Internalized Homonegativity on Sexual Risk Behavior of Men Who Have Sex with Men in Spain and Turkey. INTERNATIONAL JOURNAL OF SEXUAL HEALTH, 34 (4). pp. 644-657. ISSN 1931-7611 DOI: https://doi.org/10.1080/19317611.2022.2094043

Uhrmacher, M; Skaletz-Rorowski, A; Nambiar, S; Schmidt, AJ; Ahaus, P; Serova, K; Mordhorst, I; Kayser, A; Wach, J; Tiemann, C; +3 more... Münstermann, D; Brockmeyer, NH; Potthoff, A; (2022) HIV pre-exposure prophylaxis during the SARS-CoV-2 pandemic: Results from a prospective observational study in Germany. Frontiers in Public Health, 10. 930208-. ISSN 2296-2565 DOI: https://doi.org/10.3389/fpubh.2022.930208

Winter, Babette L; Hovaguimian, Frédérique; Kouyos, Roger D; Schmidt, Axel Jeremias; Bernasconi, Enos; Braun, Dominique L; Calmy, Alexandra; Notter, Julia; Stoeckle, Marcel; Surial, Bernard; +15 more... Christinet, Vanessa; Cavassini, Matthias; Depmeier, Carsten; Läuchli, Severin; Boffi El Amari, Emmanuelle; Reinacher, Matthias; Rasi, Manuela; Bruggmann, Philip; Haerry, David; Bize, Raphaël; Low, Nicola; Lehner, Andreas; Quednow, Boris B; Fehr, Jan S; Hampel, Benjamin; (2022) Changes in mental and sexual health among MSM using HIV pre-exposure prophylaxis during the SARS-CoV-2 pandemic: longitudinal analysis of the SwissPrEPared cohort study. Swiss medical weekly, 152 (2526). w30192-. ISSN 1424-7860 DOI: https://doi.org/10.4414/smw.2022.w30192

Zens, Kyra D; Haile, Sarah R; Schmidt, Axel J; Altpeter, Ekkehardt S; Fehr, Jan S; Lang, Phung; (2022) Retrospective, matched case-control analysis of tickborne encephalitis vaccine effectiveness by booster interval, Switzerland 2006-2020. BMJ Open, 12 (4). e061228-. ISSN 2044-6055 DOI: https://doi.org/10.1136/bmjopen-2022-061228

Altpeter, Ekkehardt S; Schmidt, Axel J; (2021) Surveillance of tuberculosis in Switzerland and the Principality of Liechtenstein, 2009 to 2019. Swiss medical weekly, 151 (3536). w30032-. ISSN 1424-7860 DOI: https://doi.org/10.4414/SMW.2021.w30032

Balakrishna, Suraj; Salazar-Vizcaya, Luisa; Schmidt, Axel J; Kachalov, Viacheslav; Kusejko, Katharina; Thurnheer, Maria Christine; Roth, Jan A; Nicca, Dunja; Cavassini, Matthias; Battegay, Manuel; +6 more... Schmid, Patrick; Bernasconi, Enos; Günthard, Huldrych F; Rauch, Andri; Kouyos, Roger D; Swiss HIV Cohort Study (SHCS); Swiss HIV Cohort Study (SHCS); (2021) Assessing the drivers of syphilis among men who have sex with men in Switzerland reveals a key impact of screening frequency: A modelling study. PLoS computational biology, 17 (10). e1009529-. ISSN 1553-734X DOI: https://doi.org/10.1371/journal.pcbi.1009529

Fritschi, Nora; Schmidt, Axel J; Hammer, Jürg; Ritz, Nicole; Swiss pediatric surveillance unit; (2021) Pediatric Tuberculosis Disease during Years of High Refugee Arrivals: A 6-Year National Prospective Surveillance Study. Respiration, 100 (11). pp. 1050-1059. ISSN 0025-7931 DOI: https://doi.org/10.1159/000517029

Künzler-Heule, Patrizia; Fierz, Katharina; Schmidt, Axel Jeremias; Rasi, Manuela; Bogdanovic, Jasmina; Kocher, Agnes; Engberg, Sandra; Battegay, Manuel; Nöstlinger, Christiana; Lehner, Andreas; +5 more... Kouyos, Roger; Schmid, Patrick; Braun, Dominique Laurent; Fehr, Jan; Nicca, Dunja; (2021) Response to a sexual risk reduction intervention provided in combination with hepatitis C treatment by HIV/HCV co-infected men who have sex with men: a reflexive thematic analysis. BMC infectious diseases, 21 (1). 319-. ISSN 1471-2334 DOI: https://doi.org/10.1186/s12879-021-06003-z

MacGregor, Louis; Kohli, Manik; Looker, Katharine J; Hickson, Ford; Weatherburn, Peter; Schmidt, Axel J; Turner, Katy Me; (2021) Chemsex and diagnoses of syphilis, gonorrhoea and chlamydia among men who have sex with men in the UK: a multivariable prediction model using causal inference methodology. Sexually transmitted infections, 97 (4). pp. 282-289. ISSN 1368-4973 DOI: https://doi.org/10.1136/sextrans-2020-054629

Marcus, Ulrich; Mirandola, Massimo; Schink, Susanne B; Gios, Lorenzo; Schmidt, Axel J; (2021) Changes in the prevalence of self-reported sexually transmitted bacterial infections from 2010 and 2017 in two large European samples of men having sex with men-is it time to re-evaluate STI-screening as a control strategy? PloS one, 16 (3). e0248582-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0248582

Pachankis, John E; Hatzenbuehler, Mark L; Bränström, Richard; Schmidt, Axel J; Berg, Rigmor C; Jonas, Kai; Pitoňák, Michal; Baros, Sladjana; Weatherburn, Peter; (2021) Structural stigma and sexual minority men's depression and suicidality: A multilevel examination of mechanisms and mobility across 48 countries. Journal of abnormal psychology, 130 (7). pp. 713-726. ISSN 0021-843X DOI: https://doi.org/10.1037/abn0000693

Schmidt, Axel J; Altpeter, Ekkehardt; Graf, Simone; Steffen, Robert; (2021) Tick-borne encephalitis (TBE) in Switzerland: does the prolongation of vaccine booster intervals result in an increased risk of breakthroughs? Journal of travel medicine, 29 (2). ISSN 1195-1982 DOI: https://doi.org/10.1093/jtm/taab158

Sönmez, İbrahim; Folch, Cinta; Lorente, Nicolas; Berg, Rigmor C; Thurlby, Natalie; Schmidt, Axel J; (2021) Influence of Internalised Homonegativity on Sexual Risk Behaviour of Men Who Have Sex with Men in Spain. Sexuality & Culture, 26 (3). pp. 932-950. ISSN 1095-5143 DOI: https://doi.org/10.1007/s12119-021-09925-7

Zellweger, Jean-Pierre; Zellweger-Landry, Ariane; Egger, Jean-Marie; Koller-Doser, Annette; Schmidt, Axel Jeremias; (2021) Surveillance of Employees of Swiss Federal Asylum Centres for Latent Tuberculosis Infection. RESPIRATION, 100 (5). pp. 411-415. ISSN 0025-7931 DOI: https://doi.org/10.1159/000514110

Brandl, M; Schmidt, AJ; Marcus, U; An der Heiden, M; Dudareva, S; (2020) Are men who have sex with men in Europe protected from hepatitis B? EPIDEMIOLOGY AND INFECTION, 148. e27-. ISSN 0950-2688 DOI: https://doi.org/10.1017/S0950268820000163

Hickson, Ford; Appenroth, Max; Koppe, Uwe; Schmidt, Axel J; Reid, David; Weatherburn, Peter; (2020) Sexual and Mental Health Inequalities across Gender Identity and Sex-Assigned-at-Birth among Men-Who-Have-Sex-with-Men in Europe: Findings from EMIS-2017. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 17 (20). p. 7379. ISSN 1661-7827 DOI: https://doi.org/10.3390/ijerph17207379

Ogino, Yumiko; Schmidt, Axel Jeremias; (2020) Impact of class-level labelling change on prescriptions of antidepressants for adolescents: An interrupted time-series study using a health insurance claims database in Japan, 2005-2013. PLOS ONE, 15 (12). e0243424-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0243424

Salazar-Vizcaya, Luisa; Kusejko, Katharina; Schmidt, Axel J; Carrillo-Montoya, Germán; Nicca, Dunja; Wandeler, Gilles; Braun, Dominique L; Fehr, Jan; Darling, Katharine EA; Bernasconi, Enos; +4 more... Schmid, Patrick; Günthard, Huldrych F; Kouyos, Roger D; Rauch, Andri; (2020) Clusters of Sexual Behavior in Human Immunodeficiency Virus-positive Men Who Have Sex With Men Reveal Highly Dissimilar Time Trends. CLINICAL INFECTIOUS DISEASES, 70 (3). pp. 416-424. ISSN 1058-4838 DOI: https://doi.org/10.1093/cid/ciz208

Schmidt, Axel Jeremias; Rasi, Manuela; Esson, Cate; Christinet, Vanessa; Ritzler, Michael; Lung, Thomas; Hauser, Christoph V; Stöckle, Marcel; Jouinot, Florent; Lehner, Andreas; +3 more... Lange, Katharina; Konrad, Torsten; Vernazza, Pietro L; (2020) The Swiss STAR trial - an evaluation of target groups for sexually transmitted infection screening in the sub-sample of men. Swiss medical weekly, 150 (5153). w20392-. ISSN 1424-7860 DOI: https://doi.org/10.4414/smw.2020.20392 Item availability may be restricted.

Vernazza, Pietro; Rasi, Manuela; Ritzler, Michael; Dost, Ferah; Stoffel, Milena; Aebi-Popp, Karoline; Hauser, Christoph V; Esson, Cate; Lange, Katharina; Risch, Lorenz; +1 more... Schmidt, Axel J; (2020) The Swiss STAR trial – an evaluation of target groups for sexually transmitted infection screening in the sub-sample of women. Swiss Medical Weekly, 150 (5153). w20393-w20393. ISSN 1424-7860 DOI: https://doi.org/10.4414/smw.2020.20393

Barrett, P; O'Donnell, K; Fitzgerald, M; Schmidt, AJ; Hickson, F; Quinlan, M; Keogh, P; O'Connor, L; McCartney, D; Igoe, D; (2019) Drug use among men who have sex with men in Ireland: Prevalence and associated factors from a national online survey. International Journal of Drug Policy, 64. pp. 5-12. ISSN 0955-3959 DOI: https://doi.org/10.1016/j.drugpo.2018.11.011

Berg, Rigmor C; Weatherburn, Peter; Marcus, Ulrich; Schmidt, Axel J; (2019) Links between transactional sex and HIV/STI-risk and substance use among a large sample of European men who have sex with men. BMC infectious diseases, 19 (1). 686-. ISSN 1471-2334 DOI: https://doi.org/10.1186/s12879-019-4326-3

Hayes, Rosalie; Schmidt, Axel J; Pharris, Anastasia; Azad, Yusef; Brown, Alison E; Weatherburn, Peter; Hickson, Ford; Delpech, Valerie; Noori, Teymur; ECDC Dublin Declaration Monitoring Network; (2019) Estimating the 'PrEP Gap': how implementation and access to PrEP differ between countries in Europe and Central Asia in 2019. Euro surveillance, 24 (41). pp. 2-8. ISSN 1025-496X DOI: https://doi.org/10.2807/1560-7917.ES.2019.24.41.1900598

Künzler-Heule, Patrizia; Engberg, Sandra; Battegay, Manuel; Schmidt, Axel J; Fierz, Katharina; Nguyen, Huyen; Kocher, Agnes; Nöstlinger, Christiana; Hampel, Benjamin; Stöckle, Marcel; +9 more... Béguelin, Charles; Delaloye, Julie; Schmid, Patrick; Flepp, Markus; Rougement, Mathieu; Braun, Dominique Laurent; Fehr, Jan; Nicca, Dunja; Swiss HIV Cohort Study (SHCS); (2019) Screening HIV-positive men who have sex with men for hepatitis C re-infection risk: is a single question on condom-use enough? A sensitivity analysis. BMC INFECTIOUS DISEASES, 19 (1). 821-. ISSN 1471-2334 DOI: https://doi.org/10.1186/s12879-019-4456-7

Schmidt, Axel Jeremias; Altpeter, Ekkehardt; (2019) The Denominator problem: estimating the size of local populations of men-who-have-sex-with-men and rates of HIV and other STIs in Switzerland. Sexually transmitted infections, 95 (4). pp. 285-291. ISSN 1368-4973 DOI: https://doi.org/10.1136/sextrans-2017-053363

Scholz, Stefan Michael; Damm, Oliver; Elkenkamp, Svenja; Marcus, Ulrich; Greiner, Wolfgang; Schmidt, Axel Jeremias; (2019) Population size and self-reported characteristics and sexual preferences of men-who-have-sex-with-men (MSM) in Germany based on social network data. PLOS ONE, 14 (2). e0212175-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0212175

Weatherburn, Peter; Hickson, Ford; Reid, David S; Marcus, Ulrich; Schmidt, Axel J; (2019) European Men-Who-Have-Sex-With-Men Internet Survey (EMIS-2017): Design and Methods. Sexuality Research and Social Policy, 17 (4). pp. 543-557. ISSN 1868-9884 DOI: https://doi.org/10.1007/s13178-019-00413-0

Giraudon, Isabelle; Schmidt, Axel Jeremias; Mohammed, Hamish; (2018) Surveillance of sexualised drug use - the challenges and the opportunities. The International journal on drug policy, 55. pp. 149-154. ISSN 0955-3959 DOI: https://doi.org/10.1016/j.drugpo.2018.03.017 Full text not available from this repository.

O'Donnell, K; Fitzgerald, M; Quinlan, M; Hickson, F; Keogh, P; Schmidt, AJ; McCartney, D; Barrett, P; O'Dea, S; Igoe, D; (2018) Inequalities in HIV testing uptake and needs among men who have sex with men living in Ireland: findings from an internet survey. HIV Medicine, 20 (2). pp. 157-163. ISSN 1464-2662 DOI: https://doi.org/10.1111/hiv.12694

Kramer, S; Schmidt, AJ; Marcus, U; (2017) [Data on the sexual health of providers and clients of sexual services for men who have sex with men in Germany]. Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz. ISSN 1436-9990 DOI: https://doi.org/10.1007/s00103-017-2589-7

Nyitray, Alan G; Bagyinszky, Ferenc; Ross, Michael W; Schmidt, Axel J; (2017) Lack of HIV testing and dissatisfaction with HIV testing and counselling among men having sex with men in Hungary. European journal of public health, 28 (4). pp. 713-720. ISSN 1101-1262 DOI: https://doi.org/10.1093/eurpub/ckx200

Pachankis, JE; Hatzenbuehler, ML; Berg, RC; Fernández-Dávila, P; Mirandola, M; Marcus, U; Weatherburn, P; Schmidt, AJ; (2017) Anti-LGBT and Anti-Immigrant Structural Stigma: An Intersectional Analysis of Sexual Minority Men's HIV Risk When Migrating to or Within Europe. Journal of acquired immune deficiency syndromes (1999). ISSN 1525-4135 DOI: https://doi.org/10.1097/QAI.0000000000001519

Schink, Susanne B; Offergeld, Ruth; Schmidt, Axel J; Marcus, Ulrich; (2017) Blood donor deferral policies across Europe and characteristics of men whohave sex with men screened for human immunodeficiency virus in bloodestablishments: data from the European Men-who-have-sex-with-men Internet Survey (EMIS). Blood transfusion = Trasfusione del sangue, 16 (1). pp. 7-16. ISSN 1723-2007 DOI: https://doi.org/10.2450/2017.0109-16

Tran, Ha; Ross, Michael W; Diamond, Pamela M; Berg, Rigmor C; Weatherburn, Peter; Schmidt, Axel J; (2017) Structural Validation and Multiple Group Assessment of the Short Internalized Homonegativity Scale in Homosexual and Bisexual Men in 38 European Countries: Results From the European MSM Internet Survey. Journal of sex research, 55 (4-5). pp. 617-629. ISSN 0022-4499 DOI: https://doi.org/10.1080/00224499.2017.1380158

Jansen, Klaus; Schmidt, Axel J; Drewes, Jochen; Bremer, Viviane; Marcus, Ulrich; (2016) Increased incidence of syphilis in men who have sex with men and risk management strategies, Germany, 2015. EUROSURVEILLANCE, 21 (43). pp. 2-8. ISSN 1560-7917 DOI: https://doi.org/10.2807/1560-7917.ES.2016.21.43.30382

Kramer, Sarah C; Schmidt, Axel Jeremias; Berg, Rigmor C; Furegato, Martina; Hospers, Harm; Folch, Cinta; Marcus, Ulrich; EMIS Network; (2016) Factors associated with unprotected anal sex with multiple non-steady partners in the past 12 months: results from the European Men-Who-Have-Sex-With-Men Internet Survey (EMIS 2010). BMC public health, 16 (1). 47-. ISSN 1471-2458 DOI: https://doi.org/10.1186/s12889-016-2691-z

Pachankis, JE; Hatzenbuehler, ML; Mirandola, M; Weatherburn, P; Berg, RC; Marcus, U; Schmidt, AJ; (2016) The Geography of Sexual Orientation: Structural Stigma and Sexual Attraction, Behavior, and Identity Among Men Who Have Sex with Men Across 38 European Countries. Archives of sexual behavior. ISSN 0004-0002 DOI: https://doi.org/10.1007/s10508-016-0819-y

Petersson, Frida JM; Tikkanen, Ronny; Schmidt, Axel J; (2016) Party and Play in the Closet? Exploring Club Drug Use Among Swedish Men Who Have Sex With Men. Substance use & misuse, 51 (9). pp. 1093-1103. ISSN 1082-6084 DOI: https://doi.org/10.3109/10826084.2016.1160117 Full text not available from this repository.

Schmidt, Axel J; Bourne, Adam; Weatherburn, Peter; Reid, David; Marcus, Ulrich; Hickson, Ford; EMIS Network; (2016) Illicit drug use among gay and bisexual men in 44 cities: Findings from the European MSM Internet Survey (EMIS). The International journal on drug policy, 38. pp. 4-12. ISSN 0955-3959 DOI: https://doi.org/10.1016/j.drugpo.2016.09.007 Full text not available from this repository.

Schmidt, Axel Jeremias; Bremer, Viviane; (2016) Response to the calculation of population attributable fractions (PAFs) of risk factors for hepatitis C transmission. AIDS (London, England), 30 (10). pp. 1683-1684. ISSN 0269-9370 DOI: https://doi.org/10.1097/QAD.0000000000001090 Full text not available from this repository.

den Daas, Chantal; Doppen, Martine; Schmidt, Axel J; Op de Coul, Eline; (2016) Determinants of never having tested for HIV among MSM in the Netherlands. BMJ open, 6 (1). e009480-. ISSN 2044-6055 DOI: https://doi.org/10.1136/bmjopen-2015-009480

Berg, Rigmor C; Weatherburn, Peter; Ross, Michael W; Schmidt, Axel J; (2015) The Relationship of Internalized Homonegativity to Sexual Health and Well-Being Among Men in 38 European Countries Who Have Sex With Men. Journal of gay & lesbian mental health, 19 (3). pp. 285-302. ISSN 1935-9705 DOI: https://doi.org/10.1080/19359705.2015.1024375

Kohler, Philipp; Schmidt, Axel J; Cavassini, Matthias; Furrer, Hansjakob; Calmy, Alexandra; Battegay, Manuel; Bernasconi, Enos; Ledergerber, Bruno; Vernazza, Pietro; Swiss HIV Cohort Study; (2015) The HIV care cascade in Switzerland: reaching the UNAIDS/WHO targets for patients diagnosed with HIV. AIDS (London, England), 29 (18). pp. 2509-2515. ISSN 0269-9370 DOI: https://doi.org/10.1097/QAD.0000000000000878 Full text not available from this repository.

Marcus, Ulrich; Hickson, Ford; Weatherburn, Peter; Furegato, Martina; Breveglieri, Michele; Berg, Rigmor C; Schmidt, Axel J; EMIS network; (2015) Antiretroviral therapy and reasons for not taking it among men having sex with men (MSM)--results from the European MSM Internet Survey (EMIS). PloS one, 10 (3). e0121047-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0121047

Pachankis, John E; Hatzenbuehler, Mark L; Hickson, Ford; Weatherburn, Peter; Berg, Rigmor C; Marcus, Ulrich; Schmidt, Axel J; (2015) Hidden from health: structural stigma, sexual orientation concealment, and HIV across 38 countries in the European MSM Internet Survey. AIDS (London, England), 29 (10). pp. 1239-1246. ISSN 0269-9370 DOI: https://doi.org/10.1097/QAD.0000000000000724

Berg, Rigmor C; Schmidt, Axel J; Weatherburn, Peter; The Emis Network; (2014) Transactional Sex: Supply and Demand Among European Men Who have Sex with Men (MSM) in the Context of Local Laws. International journal of sexual health, 27 (3). pp. 286-302. ISSN 1931-7611 DOI: https://doi.org/10.1080/19317611.2014.982263

Schmidt, AJ; Marcus, U; (2014) Erratum zu: Defizite in den Angeboten zur STI-Diagnostik für Männer mit gleichgeschlechtlichen Sexualkontakten in deutschsprachigen Städten. Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz, 57 (3). pp. 388-389. ISSN 1436-9990 DOI: https://doi.org/10.1007/s00103-013-1934-8 Full text not available from this repository.

Schmidt, Axel J; Falcato, Luis; Zahno, Benedikt; Burri, Andrea; Regenass, Stephan; Müllhaupt, Beat; Bruggmann, Philip; (2014) Prevalence of hepatitis C in a Swiss sample of men who have sex with men: whom to screen for HCV infection? BMC public health, 14 (1). 3-. ISSN 1471-2458 DOI: https://doi.org/10.1186/1471-2458-14-3

Bourne, Adam; Hammond, Gary; Hickson, Ford; Reid, David; Schmidt, Axel J; Weatherburn, Peter; EMIS Network; (2013) What constitutes the best sex life for gay and bisexual men? Implications for HIV prevention. BMC public health, 13 (1). 1083-. ISSN 1471-2458 DOI: https://doi.org/10.1186/1471-2458-13-1083

Carvalho, C; Fuertes, R; Lucas, R; Martins, A; Campos, MJ; Mendão, L; Schmidt, AJ; Barros, H; (2013) HIV testing among Portuguese men who have sex with men--results from the European MSM Internet Survey (EMIS). HIV medicine, 14 Sup (S3). pp. 15-18. ISSN 1464-2662 DOI: https://doi.org/10.1111/hiv.12058 Full text not available from this repository.

Marcus, Ulrich; Hickson, Ford; Weatherburn, Peter; Schmidt, Axel J; EMIS Network; (2013) Estimating the size of the MSM populations for 38 European countries by calculating the survey-surveillance discrepancies (SSD) between self-reported new HIV diagnoses from the European MSM internet survey (EMIS) and surveillance-reported HIV diagnoses among MSM in 2009. BMC public health, 13 (1). 919-. ISSN 1471-2458 DOI: https://doi.org/10.1186/1471-2458-13-919

Marcus, Ulrich; Hickson, Ford; Weatherburn, Peter; Schmidt, Axel J; EMIS network; (2013) Age biases in a large HIV and sexual behaviour-related internet survey among MSM. BMC public health, 13 (1). 826-. ISSN 1471-2458 DOI: https://doi.org/10.1186/1471-2458-13-826

Ross, Michael W; Berg, Rigmor C; Schmidt, Axel J; Hospers, Harm J; Breveglieri, Michele; Furegato, Martina; Weatherburn, Peter; European MSM Internet Survey (EMIS) Network; (2013) Internalised homonegativity predicts HIV-associated risk behavior in European men who have sex with men in a 38-country cross-sectional study: some public health implications of homophobia. BMJ open, 3 (2). e001928-e001928. ISSN 2044-6055 DOI: https://doi.org/10.1136/bmjopen-2012-001928

Schmidt, AJ; Marcus, U; (2013) Defizite in den Angeboten zur STI-Diagnostik für Männer mit gleichgeschlechtlichen Sexualkontakten in deutschsprachigen Städten. Ergebnisse des Europäischen MSM-Internet-Surveys (EMIS). Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz, 56. pp. 1609-1618. https://researchonline.lshtm.ac.uk/id/eprint/2576284 Full text not available from this repository.

Schmidt, Axel J; Hickson, Ford; Weatherburn, Peter; Marcus, Ulrich; EMIS Network; (2013) Comparison of the performance of STI screening services for gay and bisexual men across 40 European cities: results from the European MSM Internet Survey. Sexually transmitted infections, 89 (7). pp. 575-582. ISSN 1368-4973 DOI: https://doi.org/10.1136/sextrans-2012-050973

Weatherburn, Peter; Schmidt, Axel J; Hickson, Ford; Reid, David; Berg, Rigmor C; Hospers, Harm J; Marcus, Ulrich; (2013) The European Men-Who-Have-Sex-With-Men Internet Survey (EMIS): Design and Methods. Sexuality Research and Social Policy, 10 (4). pp. 243-257. DOI: https://doi.org/10.1007/s13178-013-0119-4

Berg, Rigmor C; Ross, Michael W; Weatherburn, Peter; Schmidt, Axel J; (2012) Structural and environmental factors are associated with internalised homonegativity in men who have sex with men: findings from the European MSM Internet Survey (EMIS) in 38 countries. Social science & medicine (1982), 78 (1). pp. 61-69. ISSN 0277-9536 DOI: https://doi.org/10.1016/j.socscimed.2012.11.033

Marcus, Ulrich; Hickson, Ford; Weatherburn, Peter; Schmidt, Axel J; EMIS Network; (2012) Prevalence of HIV among MSM in Europe: comparison of self-reported diagnoses from a large scale internet survey and existing national estimates. BMC public health, 12 (1). 978-. ISSN 1471-2458 DOI: https://doi.org/10.1186/1471-2458-12-978

Rosenbrock, R; Schmidt, AJ; (2012) [AIDS. New challenges for social and medical prevention]. Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz, 55 (4). pp. 535-542. ISSN 1436-9990 DOI: https://doi.org/10.1007/s00103-012-1451-1 Full text not available from this repository.

Bochow, M; Lenuweit, S; Schmidt, AJ; (2011) Schwule Männer und HIV/Aids: Lebensstile, Sex, Risikoverhalten 2010. Eine Befragung im Auftrag der Bundeszentrale für gesundheitliche Aufklärung, Köln; in Zusammenarbeit mit dem European MSM Internet Sex Survey (EMIS). https://researchonline.lshtm.ac.uk/id/eprint/2571533 Full text not available from this repository.

Marcus, Ulrich; Schmidt, Axel J; Hamouda, Osamah; (2011) HIV serosorting among HIV-positive men who have sex with men is associated with increased self-reported incidence of bacterial sexually transmissible infections. Sexual health, 8 (2). pp. 184-193. ISSN 1448-5028 DOI: https://doi.org/10.1071/SH10053 Full text not available from this repository.

Schmidt, AJ; (2011) Alles auf GUM. Warum wir in Europas Metropolen Zentren für schwule Gesundheit brauchen. MedReport, 35 (15). 7-. http://www.schroeders-agentur.de/medpdf2011/MedRep... Full text not available from this repository.

Schmidt, Axel J; Marcus, Ulrich; (2011) Self-reported history of sexually transmissible infections (STIs) and STI-related utilization of the German health care system by men who have sex with men: data from a large convenience sample. BMC infectious diseases, 11 (1). 132-. ISSN 1471-2334 DOI: https://doi.org/10.1186/1471-2334-11-132

Schmidt, Axel J; Rockstroh, Jürgen K; Vogel, Martin; An der Heiden, Matthias; Baillot, Armin; Krznaric, Ivanka; Radun, Doris; (2011) Trouble with bleeding: risk factors for acute hepatitis C among HIV-positive gay men from Germany--a case-control study. PloS one, 6 (3). e17781-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0017781

Bochow, M; Schmidt, AJ; Grote, S; (2010) Schwule Männer und HIV/AIDS: Lebensstile, Szene, Sex 2007. Eine Befragung im Auftrag der Bundeszentrale für gesundheitliche Aufklärung. AIDS-Forum DAH, 55. https://researchonline.lshtm.ac.uk/id/eprint/2569497 Full text not available from this repository.

Bochow, M; Schmidt, AJ; Grote, S; (2009) "Das schnelle Date". Internetgestützte Sexkontakte und HIV-Infektionsrisiko. Ergebnisse einer 2006 durchgeführten Internetbefragung. WZB discussion papers. ISSN 1866-3842 https://researchonline.lshtm.ac.uk/id/eprint/2564155

Marcus, Ulrich; Schmidt, Axel J; Hamouda, Osamah; Bochow, Michael; (2009) Estimating the regional distribution of men who have sex with men (MSM) based on Internet surveys. BMC public health, 9 (1). 180-. ISSN 1471-2458 DOI: https://doi.org/10.1186/1471-2458-9-180

Marcus, Ulrich; Schmidt, Axel J; Kollan, Christian; Hamouda, Osamah; (2009) The denominator problem: estimating MSM-specific incidence of sexually transmitted infections and prevalence of HIV using population sizes of MSM derived from Internet surveys. BMC public health, 9 (1). 181-. ISSN 1471-2458 DOI: https://doi.org/10.1186/1471-2458-9-181

Schmidt, AJ; Bochow, M; (2009) Trends in Risk Taking and Risk Reduction Among German MSM. Results of Follow-Up Surveys "Gay Men and AIDS" 1991-2007. Berlin Social Science Research Center, Public Health Unit, Berlin, p. 36. ISBN 1866-3842 https://researchonline.lshtm.ac.uk/id/eprint/2587543

Schmidt, AJ; Marcus, U; Hamouda, O; (2007) KABaSTI-Studie - Wissen, Einstellungen und Verhalten bezüglich sexuell übertragbarer Infektionen. Aufbau einer deutschlandweiten 2nd Generation Surveillance für HIV und andere übertragbare Infektionen bei Männern mit gleichgeschlechtlichem Sex. Bericht an das Bundesministerium für Gesundheit. http://www.rki.de/DE/Content/InfAZ/S/STD/Studien/K... Full text not available from this repository.