Ymke J. Evers

ORCID: 0000-0003-3859-0168
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Research Areas
  • HIV/AIDS Research and Interventions
  • HIV, Drug Use, Sexual Risk
  • Sex work and related issues
  • Reproductive tract infections research
  • Adolescent Sexual and Reproductive Health
  • Sexuality, Behavior, and Technology
  • Syphilis Diagnosis and Treatment
  • Poxvirus research and outbreaks
  • Bacillus and Francisella bacterial research
  • Vaccine Coverage and Hesitancy
  • Urinary and Genital Oncology Studies
  • Homelessness and Social Issues
  • Marriage and Sexual Relationships
  • Cervical Cancer and HPV Research
  • Herpesvirus Infections and Treatments
  • Reproductive Health and Contraception
  • Urinary Tract Infections Management
  • Cannabis and Cannabinoid Research
  • Behavioral Health and Interventions
  • HIV Research and Treatment
  • COVID-19 epidemiological studies
  • COVID-19 Pandemic Impacts
  • Blood groups and transfusion
  • Genital Health and Disease
  • Sexual function and dysfunction studies

GGD Zuid Limburg
2019-2025

Maastricht University
2019-2025

Maastricht University Medical Centre
2019-2024

Public Health Service of Amsterdam
2020

Sexual Health Clinic
2019

In the 2022 multicountry mpox (formerly named monkeypox) outbreak, several countries offered primary preventive vaccination (PPV) to people at higher risk for infection. We study vaccine acceptance and its determinants, target tailor public health (communication-) strategies in context of limited supply Netherlands.

10.3389/fpubh.2022.1058807 article EN cc-by Frontiers in Public Health 2023-01-05

Drug use during sex (‘chemsex’) has been associated with sexually transmitted infections (STIs) and mental health harms. Little quantitative evidence exists on the care needs of MSM practicing chemsex from a patient perspective. This study assessed self-perceived benefits harms for professional counselling among chemsex. In 2018, 785 were recruited at nine Dutch STI clinics 511 (65%) completed online questionnaire. Chemsex was defined as using cocaine, crystal meth, designer drugs, GHB/GBL,...

10.1016/j.pmedr.2020.101074 article EN cc-by-nc-nd Preventive Medicine Reports 2020-03-06

Abstract Home-based sexual health care (including self-sampling testing) could reduce barriers to clinic-based testing. This study systematically evaluated the implementation of home-based (‘Limburg4Zero’) among men who have sex with (MSM) in a mixed urban–rural region Netherlands. We assessed outcomes (contextual domains, population reached, effectiveness, adoption by providers (HCP), fidelity, and maintenance) using practical, robust sustainability model. used mixed-methods research design...

10.1007/s10461-024-04579-6 article EN cc-by AIDS and Behavior 2025-01-08

The intentional use of drugs to have sex-chemsex-among men who sex with (MSM) might contribute the high sexually transmitted infections (STI) prevalence in this group. Limited data is available on chemsex outside major cities. current study investigated a wide variety during among MSM living cities Netherlands and their associations STI.In 2018, 350 were recruited at STI clinics 250 completed an online questionnaire. Questionnaire linked clients' most recent laboratory test results. Chemsex...

10.1371/journal.pone.0216732 article EN cc-by PLoS ONE 2019-05-14

In response to the mpox outbreak, vaccination was offered in Netherlands men who have sex with (MSM) at increased risk for mpox. Successful campaigns are leveraged by high intent-to-vaccinate, yet intent might not always lead uptake. Therefore, we assessed impact of intent-to-vaccinate and other factors on uptake among participants Amsterdam Cohort Studies (ACS). July 2022, prior campaign, distributed an online survey regarding as well e.g. beliefs, attitude, subjective norms, perception ACS...

10.1016/j.vaccine.2023.12.018 article EN cc-by Vaccine 2023-12-09

ABSTRACT Background Home-based sampling could create accessible testing opportunities for men who have sex with (MSM) use pre-exposure prophylaxis (PrEP). Blood collection is required the most reliable laboratory results HIV and syphilis testing. An innovative blood-collection method (Tasso+) creates a vacuum semi-automatically collects larger volumes of blood from upper arm. This study aims to assess acceptability feasibility this device among PrEP-using MSM performance blood-collection....

10.1097/olq.0000000000001969 article EN cc-by Sexually Transmitted Diseases 2024-06-11

Background Drug use during sex, 'chemsex', is common among men who have sex with (MSM) and related to sexual mental health harms. This study assessed associations between chemsex a wide range of determinants MSM visiting STI clinics increase understanding characteristics beliefs practicing chemsex. Methods In 2018, 785 were recruited at nine Dutch clinics; 368 (47%) fully completed the online questionnaire. All participants reported had in past six months. Chemsex was defined as using...

10.1371/journal.pone.0235467 article EN cc-by PLoS ONE 2020-07-01

Male sex workers who have with men (MSW-MSM) are a high-risk group for sexually transmitted infections (STI) including human immunodeficiency virus (HIV). Provision of sexual services by MSW-MSM has shifted to the internet. Consequently, become hidden care providers healthcare (SHS). The aim this study was 1) assess characteristics population and 2) MSW-MSM's perceived barriers facilitators utilise SHS provided free anonymously public health STI clinic in Netherlands.

10.1186/s12889-022-13799-1 article EN cc-by BMC Public Health 2022-07-21

ABSTRACT Introduction In the global monkeypox outbreak primary preventive vaccination is offered to people at higher risk for infection. We study vaccine acceptance and its determinants, target tailor public health (communication-)strategies in context of limited supply Netherlands. Methods. Online survey a convenience sample gay, bisexual other men who have sex with men, including transgender persons (22/07-05/09/2022, Netherlands). assessed determinants (sociodemographic, social...

10.1101/2022.10.11.22280965 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2022-10-13

Abstract An understanding of sexual (risk) behavior is necessary to successfully develop prevention and care strategies for the sexually transmitted infections (STI) high-risk group male sex workers who have with men (MSW–MSM). However, limited scientific knowledge available on (home-based) MSW–MSM. This study aimed gain an behavior, factors influencing applied risk-reduction home-based For this qualitative study, semi-structured individual interviews were conducted 20 MSW–MSM in...

10.1007/s10508-023-02648-w article EN cc-by Archives of Sexual Behavior 2023-07-07

Drug use during sex has been associated with sexually transmitted infections (STI). While a growing body of research investigated drug among men who have men, data in swingers is limited. Swingers are heterosexual couples others and singles these couples. Our study assessed the prevalence perceived benefits risks swingers.In 2018, 1005 completed an online questionnaire that was advertised at Dutch swinger-websites. We associations between <6 months (any excluding alcohol erection medicines)...

10.1136/sextrans-2019-054113 article EN Sexually Transmitted Infections 2019-08-12

Alcohol use and drug are common behaviours among young people. STI positivity is higher in people than aged above 25 years. While there an increasing amount of knowledge about during sex men who have with (MSM), data on this behaviour women heterosexual scarce. Therefore, study aims to assess the proportion characteristics under years reporting alcohol and/or its association positivity.Surveillance individuals younger visiting two Dutch clinics between 2016 2019 were assessed (n=11 714). We...

10.1136/sextrans-2021-055355 article EN Sexually Transmitted Infections 2022-05-06

Introduction The World Health Organization recommends HIV-PrEP for all people at risk HIV infection, which includes men who have sex with (MSM). Substantial part of new diagnoses in the Netherlands are non-western born MSM. This study evaluated and reported PrEP use among MSM compared it to western-born To inform public health efforts context equitable access, we further assessed sociodemographic factors related higher lower Methods Surveillance data consultations Dutch STI-clinics...

10.3389/fpubh.2023.1196958 article EN cc-by Frontiers in Public Health 2023-06-19

Objectives Chemsex—using illicit drugs during sex—is prevalent among men who have sex with (MSM) and associated sexual mental health harms. Sexually transmitted disease (STD) clinics are a frequently visited trusted care facility for MSM. This study assessed the frequency extent to which chemsex is addressed by Dutch STD nurses. Methods Of 24 public clinics, an online questionnaire was distributed in 20 (83%) 2019; sent 191 nurses, of whom 108 (57%) completed questionnaire. The main outcome...

10.1097/olq.0000000000001209 article EN Sexually Transmitted Diseases 2020-06-03

Abstract Introduction During an infectious disease outbreak, primary preventive pre-exposure vaccination (PPV) could substantially increase the potential for its control, if uptake is sufficiently high. An important tool to PPV uptake, are communication strategies, with tailored messages targeted modify determinants uptake. Here, we take example of 2022 mpox multicountry as inform development strategies by applying a theoretical framework selecting effective strategies. Methods The...

10.1186/s12889-023-17311-1 article EN cc-by BMC Public Health 2023-11-30

Background Globally, migrant sex workers have a higher burden of sexually transmitted infections (STI)/human immunodeficiency virus (HIV). This large study aimed to assess demographics, STI/HIV burden, and sexual health care–seeking behavior first-generation second-generation male who with men (MSW-MSM) versus Western-born MSW-MSM. Methods Coded STI clinic consultations (n = 6970) from 3116 individual MSW-MSM attending any Dutch between 2016 2021 were included. First-generation migrant: born...

10.1097/olq.0000000000001902 article EN cc-by Sexually Transmitted Diseases 2023-11-13

Abstract Almost half of men who have sex with visiting Dutch sexually transmitted disease clinics reported abroad in the past 6 months, mainly Western countries. One 4 had used drugs during (“chemsex”) abroad. Having was associated having multiple partners and casual partner(s).

10.1097/olq.0000000000001207 article EN Sexually Transmitted Diseases 2020-06-03

The COVID-19 pandemic has temporarily disrupted access to clinic-based sexual health care for men who have sex with (MSM) in the Netherlands. importance of home-based been underpinned as an extension care. This paper aims assess intention use, and acceptability among MSM previously attended In November 2020, 424 had STI clinic pre-pandemic were invited participate online survey; 154 completed survey (response 36%). Intention use self-sampling STI/HIV tests was assessed (median; scale 0–100)...

10.3389/frph.2022.967770 article EN cc-by Frontiers in Reproductive Health 2022-08-15

Pharyngeal Chlamydia trachomatis (CT) was diagnosed in 1.2% and pharyngeal-only CT 0.5% of routinely universally tested men who have sex with (MSM). In these 3-anatomic-site MSM, comprised 4.8% all CT. The low positivity indicates public health impact pharyngeal

10.1093/cid/ciab685 article EN cc-by-nc-nd Clinical Infectious Diseases 2021-08-04
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