A5007750912- HIV/AIDS Research and Interventions
- HIV, Drug Use, Sexual Risk
- HIV Research and Treatment
- Adolescent Sexual and Reproductive Health
- Sex work and related issues
- Genital Health and Disease
- Urological Disorders and Treatments
- Cervical Cancer and HPV Research
- Antibiotic Resistance in Bacteria
- Blood donation and transfusion practices
- Sexuality, Behavior, and Technology
- Syphilis Diagnosis and Treatment
- HIV/AIDS oral health manifestations
- Community Health and Development
- Reproductive tract infections research
- Mental Health Research Topics
- Antibiotic Use and Resistance
- Cytomegalovirus and herpesvirus research
- Herpesvirus Infections and Treatments
- Toxoplasma gondii Research Studies
- Pneumocystis jirovecii pneumonia detection and treatment
Amsterdam UMC Location University of Amsterdam
2017-2023
Amsterdam University Medical Centers
2023
Public Health Service of Amsterdam
2018-2022
Objective: To investigate the impact of Dutch COVID-19 restrictions on sexual behavior and HIV/sexually transmitted infection (STI) acquisition among men who have sex with (MSM) participating in Amsterdam Cohort Studies (ACS) HIV Amsterdam. Methods: ACS participants complete a questionnaire are tested for HIV/STI biannually. They may also be at STI clinic in-between study visits. On May 29, 2020, were invited to an online health, risk perceptions, behavior. Determinants reporting casual...
We investigated changes in incidence rates of HIV and sexually transmitted infections (STIs) trends sexual behavior MSM from 2009 to 2017.Open prospective cohort study.HIV-negative enrolled the Amsterdam Cohort Studies were included. Participants semiannually completed a questionnaire on tested for HIV-1, syphilis, urethral, anal pharyngeal chlamydia gonorrhea. Time analyzed using exponential survival models.During follow-up, 42 905 acquired HIV. The rate was 1.9/100 person-years [95%...
Men who have sex with men (MSM) initiating human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP) may increase condomless anal (CAS) and number of partners, and, consequently, more often acquire sexually transmitted infections (STIs). Using data from the Amsterdam Cohort Studies, we compared sexual behavior STI among MSM after PrEP-initiation controls not PrEP. The reported on were tested for HIV, chlamydia, gonorrhea, syphilis semi-annually. We matched initiated PrEP between...
Abstract Aims To test whether recreational drug use (RDU) and sexualized (SDU) changed in the Amsterdam area between 2008 2018 quantify associations of SDU with condomless anal sex (CAS), recent human immunodeficiency virus (HIV) or sexually transmitted infections (STI) among (HIV)‐negative men who have (MSM). Design Open prospective cohort study. Setting Public Health Service Amsterdam, Netherlands. Participants A total 976 HIV‐negative MSM, aged ≥ 18 years. Measurements Self‐reported RDU...
Objectives: To investigate the incidence and risk factors of immune reconstitution inflammatory syndrome (IRIS) associated with toxoplasmic encephalitis (TE) in patients starting combination antiretroviral therapy (cART). Design: A historical multicenter cohort study. Methods: We included all HIV-infected diagnosed six Dutch hospitals between 1996 2016. Diagnosis TE–IRIS was made using predefined IRIS criteria. distinguished paradoxical (worsening underlying treated infection) from unmasking...
We aimed to investigate the motives, barriers and experiences of HIV-STAR study participants. The was an analytical HIV treatment interruption trial (ATI) aiming evaluate origin viral rebound, conducted in Ghent, Belgium.A mixed-method performed among 11 participants study. Two self-administered questionnaires with 32 23 items, respectively, assessed research In-depth interviews were further explore understand topics that had emerged from these surveys.Motives ATI primarily related...
Deferral of men who have sex with (MSM) from blood donation is highly debated. We therefore investigated their suitability to donate blood.We compared the antibody prevalence 10 sexually and transfusion-transmissible infections (TTIs) among 583 MSM age-matched repeat male donors. were classified as low risk (lr) or medium-to-high (hr) based on self-reported sexual behavior qualified unqualified using Dutch donor deferral criteria. Infection pressure (IP) was defined number antibody-reactive...
As biomedical advances improved HIV treatment, the perceptions of severity and anticipated consequences could have changed accordingly. This study investigates current infection its association with sexual risk behaviour among HIV-negative never-tested men who sex (MSM) living in Netherlands.
Immigrant HIV-infected adults in industrialized countries show a poorer clinical and virologic outcome compared with native patients. We aimed to investigate potential differences clinical, immunological, Dutch children born the Netherlands (NL) versus Sub-Saharan Africa (SSA) national cohort analysis.We included all registered between 1996 2013. Descriptive statistics, mixed-effects models, Cox proportional hazard models were used groups.In total, 319 registered. The majority of these SSA...
Biomedical HIV-prevention strategies (BmPS) among men who have sex with (MSM), such as pre-exposure prophylaxis (PrEP) and viral load sorting (VLS), are essential but relatively new their uptake gradual. Using an extension of the causal attitude network approach, we investigated which beliefs related to PrEP VLS at each time-point. We included 632 HIV-negative MSM from Amsterdam Cohort Studies four data-waves between 2017 2019. estimated weighted, undirected networks for time-point, where...
Flat penile lesions (FPL) in heterosexual men are thought to play a role the transmission of HPV. We investigated association between FPL and HPV, explored determinants who have sex with (MSM).In 2015-2016, MSM were recruited based on HIV HPV status previous cohort. self-completed questionnaire. Peniscopy was performed after application acetic acid visualize FPL. Penile physician-collected samples tested for HPV-DNA using highly sensitive SPF10-PCR DEIA/LiPA25 system. viral load (VL)...
To assess differences in socio-demographics, HIV testing and healthcare seeking behavior between individuals diagnosed late those early after HIV-acquisition.Cross-sectional study among recently HIV-diagnosed migrant non-migrant living the Netherlands.Participants self-completed a questionnaire on HIV-testing preceding diagnosis 2013-2015. Using multivariable logistic regression, socio-demographic determinants of were explored. Variables HIV-infection, access to care compared using...
Men who have sex with men (MSM) are at increased risk of anogenital human papillomavirus (HPV) infections. We aimed to assess the incidence and clearance penile high-risk HPV (hrHPV) infections their determinants among HIV-negative MSM living in Netherlands.Between 2010 2015, were semiannually tested for completed detailed questionnaires on health sexual behavior. Self-collected swabs DNA using SPF10-PCR DEIA/LiPA25 system. Type-specific hrHPV (IR) rates (CR) calculated 12 types (HPV-16,...
Men who have sex with men (MSM) and are unaware of their HIV infection contribute to onward transmission more likely progress severe illness. We therefore assessed determinants never testing for among MSM living in the Netherlands. Between April July 2019, 950 HIV-negative 122 never-tested completed a cross-sectional survey on sociodemographics, behavior, sexual risk taking, which was distributed through gay networking sites/apps. In MSM, median age 37 (interquartile range = 22–51) years...