Trends and the Gender Gap in the Reporting of Sexual Initiation Among 15-Year-Olds: A Comparison of 33 European Countries.

Early sexual intercourse initiation has been associated with immediate and long-term risks, which makes the study of trends in sexual initiation an important topic for policy makers. This study investigated trends over time in reported sexual initiation among 15-year-olds across 33 countries between 2010-2018. In addition, we examined if there were cross-country differences in the gender gap in reported sexual initiation in 2018, and whether these could be attributed to gender inequality and gender role attitudes. To answer these questions, we combined individual-level data from the international Health Behaviour in School-aged Children study collected in 2010 (N = 57,656), 2014 (N = 56,745) and 2018 (N = 55,127) with country-level data on gender inequality and gender role attitudes. We found a decrease over time in early sexual initiation in most countries, but also cross-country differences in these trends. More boys than girls reported sexual initiation in 2018. This gender gap also varied across countries and slightly decreased over time. In countries with less progressive gender role attitudes and more gender inequality, fewer girls reported early sexual initiation, resulting in a larger gender gap in these countries. To conclude, policy makers, healthcare providers and educators should focus on changing stereotypical gender norms.

Sex Surveys in Europe: Reflections on over Four Decades of Sexual Behavior and Sexual Health Surveillance.

Sexual expression is fundamental to human existence and an important topic of enquiry in its own right. Understanding sexual behavior is also essential to establish effective sexual health prevention activities (e.g., education), services and policies, and to assess the progress of policies and action plans. Questions on sexual health are rarely included in general health surveys, and therefore dedicated population studies are required. Many countries lack both funding and sociopolitical support to conduct such surveys. A tradition of periodic population sexual health surveys exists in Europe but the methods used (e.g., in questionnaire construction, recruiting methods or interview format) vary from one survey to another. This is because the researchers within each country are confronted with conceptual, methodological, sociocultural and budgetary challenges, for which they find different solutions. These differences limit comparison across countries and pooling of estimates, but the variation in approaches provides a rich source of learning on population survey research. In this review, survey leads from 11 European countries discuss how their surveys evolved during the past four decades in response to sociohistorical and political context, and the challenges they encountered. The review discusses the solutions they identified and shows that it is possible to create well designed surveys which collect high quality data on a range of aspects of sexual health, despite the sensitivity of the topic. Herewith, we hope to support the research community in their perennial quest for political support and funding, and ongoing drive to advance methodology in future national sex surveys.

Changes in Intimacy and Sexuality During the COVID-19 Pandemic: A Qualitative Analysis of Data from a Survey on Partnered Individuals in Eight European Countries.

This qualitative study explores experiences of intimacy and sexuality during the first phase of the COVID-19 pandemic of 3357 participants from Croatia, the Czech Republic, the Netherlands, France, Germany, Portugal, Sweden, and Turkey. Data were collected through open-ended questions within a survey on sexuality during the pandemic. Based on a reflexive thematic analysis three themes occurred. The first theme No change was described by 41% when summarizing their sex life during the pandemic. The second theme Positive change was experienced by 25%, and the third theme Negative change by 21%. An overarching theme then emerged as: "Still the same trajectories, but the pandemic could be a catalyst for improved or worsened sex- life." For those intimate partnered individuals who already had problems with intimacy and sexuality before the COVID-19 pandemic it seemed to remain the same or deteriorated throughout the pandemic. For those with positive experiences of intimacy and sexuality before the COVID-19 pandemic it remained the same or improved throughout the pandemic. These findings are relevant for researchers and clinicians in developing preventive and supportive interventions in the context of crisis and social isolation.

[The Lifestyle Monitor: prevalence rates for health policy]. / De Leefstijlmonitor: Cijfers voor gezondheidsbeleid.

The Lifestyle Monitor (LSM) was launched in 2013 on behalf of the Ministry of Health, Welfare and Sports to reorganize the multiple data collections in the field of lifestyle and health in the Netherlands. The reorganization should enhance the efficiency and coherence of the lifestyle and health data collections and should provide unambiguous figures for policymakers. This article describes the background and content (including the lifestyle-themes) of the LSM and the tasks and roles of the collaborating parties involved. The measurement methods used and requirements for data requests are described as well. Finally, some examples of figures and trends over the period 2014-2020 to underpin the health policy are described.

Perceived Changes in Sexual Interest and Distress About Discrepant Sexual Interest During the First Phase of COVID-19 Pandemic: A Multi-Country Assessment in Cohabiting Partnered Individuals.

Due to COVID-19 pandemic, different restrictive measures in terms of physical distancing and lockdowns have been introduced in most European countries, affecting all facets of social life. Currently, little is known about how partnered individuals perceive changes in their sexual life during this complex emergency. This study explored retrospectively assessed changes in sexual interest for one's partner and levels of distress related to perceived sexual interest discrepancy during the first phase of the pandemic in a large-scale online sample of partnered individuals (n = 4813; Mage = 38.5 years, SD = 10.74) recruited between May and July 2020 in seven European Union countries and Turkey. We also examined the possible role of approach/avoidance motives for sex in reported changes in sexual interest and associated distress. Most participants (53%) reported no change in their sexual interest during the pandemic, followed by those who reported an increase (28.5%). The pattern was similar across the eight countries. Distress about discrepant sexual interest, which was only weakly related to changes in sexual interest, was significantly associated with relationship quality and emotional closeness with a partner, coping with and worrying about the pandemic, and specific motivation for sex. In contrast to avoidant and relationship-focused approach motivation, ego-focused approach motivation was related to stable sexual interest during the pandemic. The current study contributes to the understanding of the link between sexual interest and complex emergencies. Considering that the COVID-19 pandemic continues, the reported experiences and perceptions are prone to change.

Prevalence and Correlates of Sext-Sharing Among a Representative Sample of Youth in the Netherlands.

Many adolescents use their electronic devices to send each other sexually explicit texts, photos, and videos of themselves-commonly known as sexting. This can be fun and is not usually problematic. However, if the intended recipient decides to share these sexts with a broader audience, the consequences for the depicted can be detrimental. The purpose of this study was to investigate the prevalence of (non-consensual) sext-sharing among Dutch adolescents and explore the characteristics of those who do, to gain a better understanding of factors involved in dissemination. We used data from "Sex under the age of 25," a representative national survey on sexual health among a sample of 20,834 Dutch 12-24-year-olds. The prevalence of sext-sharing was estimated using Complex Samples. Logistic regressions were used to assess associations between demographics, school-based sexting education, sexual- and online behavior, and mental health and sext-sharing. About 4% of the adolescents reported having shared someone else's sext in the last six months. Being male, aged 12-14 years, frequent social media usage, watching online porn, sexual experience, and being subjected to sext-sharing themselves associated most strongly with sext-sharing. Our findings show that the likelihood of sext-sharing is lower in older adolescents and that it associates with the extent of adolescents' sexual curiosity and online activity. The overlap between sharing sexts of others and having one's own sext shared suggests that dissemination of personal sexual content might be normalized or used as an act of retribution. Further research could be helpful to explain the mechanisms underlying this overlap. The results of this study illustrate the importance of exposing adolescents to evidence based preventive educational interventions on sexting from 12 years onwards and not just within the context of traditional school-based sex education, but also as a part of the (online) media-literacy curriculum.

Sexual Complaints and Ethnicity: Ethnic Differences in a Help-Seeking Sample.

BACKGROUND: Sexual complaints are a widespread problem around the globe. Ethnicity and culture play a vital role in sexual complaints, in terms of presentation, treatment, etiology, meaning, help-seeking behavior, and treatment preferences. AIM: This study investigates whether there are differences in the type of sexual complaints among Dutch people with various ethnic backgrounds, using a help-seeking sample from 16 outpatient clinics based in different regions in the Netherlands. METHODS: Differences in sexual complaints between various ethnic groups were analyzed separately for women and men, using logistic regression, controlling for age. MAIN OUTCOME MEASURES: The primary outcome measures included sexual complaints determined as per the registered details of the Dutch Registry for Sexology Outpatient Clinics. RESULTS: Both similarities and differences were found between ethnic groups. Dyspareunia was an important complaint among women from all ethnic backgrounds, as were erectile problems among men. For most complaints, however, modest yet significant ethnic differences were found. CLINICAL TRANSLATION: Health practitioners need to be aware of this ethnic and cultural variation, while acknowledging variety within groups as well. STRENGTHS & LIMITATIONS: This study is the first to include a help-seeking sample large enough to investigate ethnic differences in sexual complaints in this level of detail. An important limitation is the fact that this study pooled together diverse groups of people into ethnic categories. CONCLUSION: The differences found were significant, yet modest. We can state that ethnic background does play a role in etiology and/or help-seeking in patients with sexual complaints, as long as we maintain an open stance and acknowledge similarities between ethnic groups as well. Tijdink S, De Graaf H, Hehenkamp L, et al. Sexual Complaints and Ethnicity: Ethnic Differences in a Help-Seeking Sample. J Sex Med 2020;17:1676-1686.

Youth's Socio-Sexual Competences With Romantic and Casual Sexual Partners.

We investigated youth's self-reported socio-sexual competences (esteem, assertiveness, control, communication) within their most recent sexual partnerships, and explored disparities in these competences between romantic versus casual sexual partnerships, including age and gender differences therein. Data were used from 6,098 Dutch adolescents and young adults (12.1-26.1 years), who participated in a national study on sexual health. Results indicated that being in love and sexual activity frequency were significant confounders for the associations between sexual partnership typology and youth's socio-sexual competence levels. After controlling for confounding relationship characteristics and sociodemographics, no differences were found between sexual partnership types in youth's sexual esteem, assertiveness, and control. However, romantic sexual partnerships were characterized by more frequent sexual communication than casual sexual partnerships. This pattern was gender-consistent, but for young adults, this difference in sexual communication across sexual partnership types was larger than for adolescents. Our findings emphasize that considering the relationship context (e.g., romantic, casual) for the development, utilization, and evaluation of young people's socio-sexual competences - particularly sexual communication - is a vital task for parents, educators, clinicians, and researchers. Individual (person-centered) versus relational (dyad-centered) differences in youth's socio-sexual competences require further exploration, as does the link between socio-sexual competences and sexual health and satisfaction.

Placing sexually transmitted infection surveillance data in perspective by using national probability sample surveys.

BACKGROUND: Many European countries do not have comprehensive sexually transmitted infection (STI) surveillance in place. The objective was to investigate whether national probability sample surveys are useful in placing STI surveillance into perspective. METHODS: We used data from the Dutch national cross-sectional probability sample survey on sexual health 2016 (18-34-year-old sexually active individuals). Descriptive analyses were performed regarding STI testing (last year). Test numbers were extrapolated from the survey and compared with surveillance data from sexual health centres (SHCs) (complete) and general practitioners (GPs) (representative estimates from 7% of all GPs). Statistical differences in characteristics between SHC attendees and general population (according to weighted survey participants) were determined using χ2 statistic. Predictors of recent testing at GPs or SHCs were determined using multinomial multivariable logistic regression. RESULTS: Of the 17 222 survey invitees, 3217 (19%) were eligible for analyses. Testing uptake was higher in women (17.2%, 14.8-20.0%) than men (11.5%, 9.1-14.3%). The majority of tests were conducted by GPs followed by SHCs and hospitals. Number of tests extrapolated from the survey was similar to SHC surveillance data, but higher than GP surveillance data (women only). Testing at SHCs was associated with high-risk behaviour and with living in highly urbanized areas. Low education level and older age were, next to high-risk behaviour factors, determinants of testing at GPs. CONCLUSIONS: National probability sample surveys are useful for placing STI surveillance data into perspective by providing insights in testing patterns in the general population and identifying strengths and weaknesses of national surveillance systems.

National prevalence estimates of chlamydia and gonorrhoea in the Netherlands.

OBJECTIVES: National prevalence estimates of Chlamydia trachomatis (chlamydia) and Neisseria gonorrhoeae (gonorrhoea) are important for providing insights in the occurrence and control of these STIs. The aim was to obtain national prevalence estimates for chlamydia and gonorrhoea and to investigate risk factors associated with infection. METHODS: Between November 2016 and January 2017, we performed a national population-based cross-sectional probability sample survey among men and women aged 18-34 years in the Netherlands. Individuals were invited to complete a questionnaire about sexual health. At the end of the questionnaire, sexually active individuals could request a home-based sampling kit. Samples were tested for chlamydia and gonorrhoea using nucleic acid amplification test (NAAT). Logistic regression analyses were performed for predictors of participation and chlamydia infection. RESULTS: Of the 17 222 invited individuals, 4447 (26%) participated. Of these, 3255 were eligible for prevalence survey participation and 550 (17%) returned a sample. Participation in the prevalence survey was associated with age (20+) and risk factors for STI. We did not detect any gonorrhoea. The overall weighted prevalence of chlamydia was 2.8% (95% CI 1.5% to 5.2%); 1.1% (0.1% to 7.2%) in men and 5.6% (3.3% to 9.5%) in women. Risk factors for chlamydia infections in women aged 18-24 years were low/medium education level, not having a relationship with the person you had most recent sex with and age at first sex older than 16. CONCLUSIONS: Chlamydia and gonorrhoea prevalence were low in the general Dutch population, as was the participation rate. Repeated prevalence surveys are needed to analyse trends in STI prevalences and to evaluate control policies.

An approach to assessing the quality of birth centres results of the Dutch birth centre study.

OBJECTIVE: to determine the usability of a recently developed set of 30 structure and process birth centre quality indicators. DESIGN: an explorative study using mixed-methods including literature, a survey, interviews and observations. The study is part of the Dutch Birth Centre Study. We first determined the measurability of birth centre quality indicators by describing them in detail. Next, we assessed the birth centres in the Netherlands according to these indicators using data derived from the Dutch Birth Centre General Questionnaire, the Dutch Birth Centre Integration Questionnaire, interviews, and policy documents. SETTING AND PARTICIPANTS: representatives of 23 birth centres in the Netherlands. MEASUREMENTS AND FINDINGS: 28 of the 30 quality indicators could be used to assess birth centres in the Netherlands, one had no optimal value defined, another could not be scored because the information was not available. Each quality indicator could be scored 0 or 1. Differences between birth centres were shown: the scores ranged from 7 to 22. Some of the quality indicators can be combined or made more specific so that they are easier to assess. Some quality indicators need adaptation because they are only applicable for some birth centres (e.g. only for freestanding or alongside birth centres). KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: 28 of the 30 quality indicators are usable to assess structure and process quality of birth centres. With the findings of this study the set of structure and process quality indicators for birth centres in the Netherlands can be reduced to 22 indicators. This set of quality indicators can contribute to the development of a quality system for birth centres. Further research is necessary to formulate standards or minimum quality requirements for birth centres and to improve the set of birth centre quality indicators.

[Sex under the age of 25 in 2017: the sexual health of young people in the Netherlands]. / Onderzoek 'Seks onder je 25e 2017'.

OBJECTIVE: To gain insight in the sexual health of young people aged 12 to 25 in the Netherlands. Municipal health services and other stakeholders in the area of the promotion of sexual health were involved in various phases of this study, the results of which can be applied better to maintaining or improving the sexual health of young people. DESIGN: Large-scale representative study with a cross-sectional design which was previously conducted in 2005 and 2012. METHOD: We used data from students in secondary education (aged 12-16 years) as well as data from a sample drawn from the municipal population registers (aged 17-24 years). Fifteen municipal health services recruited extra respondents from their own regions, so that they obtained reliable and representative figures on the sexual health of young people at a local level. This investment also led to a total of 20,500 young people filling in a digital questionnaire containing questions on a wide range of sexuality-related topics. RESULTS: The study shows that young people are having their first sexual experiences at a later age and protect themselves well against pregnancy. New developments were also apparent in the use of online media for 'sexting' and meeting partners. Condom use was low, particularly with casual partners, and despite a reduction in sexual violence it still occurs too frequently. CONCLUSION: Sexual health among young people is generally good, but there are still concerns. The findings of this study were discussed with professionals working in the field of young people and sexual health. Their recommendations on interventions, care and policy resulting from these discussions will be included in a national action plan.

Offline and Online Sexual Risk Behavior among Youth in the Netherlands: Findings from "Sex under the Age of 25".

Sexually developing adolescents and emerging adults face sexual health risks as well as potentially negative outcomes of online sexual behaviors. The goal of this study was to describe three categories of sexual risk behavior: (1) behavior related to STI/HIV, (2) behavior related to unplanned pregnancy, and (3) online sexual risk behavior. In addition, we investigated whether these behaviors are actually related to negative (health) outcomes. For this purpose, we used data from a Dutch probability survey: "Sex under the age of 25." Adolescents and emerging adults aged 12 through 24 (8,053 boys and 12,447 girls) completed a digital questionnaire, including measures of the risk of STI/HIV and pregnancy, online sexual behavior and non-consensual sex. Chi-square tests and logistic regressions were used to test for gender and age differences and compute associations between risk behavior and negative outcomes. The results showed that the risk of unplanned pregnancy is low in the Netherlands. It seems that adolescents and emerging adults are less aware of the risk of STI/HIV than of the risk of pregnancy. About 11% of the participants had had more than one partner in the last 6 months and had not used condoms consistently with their last partner, and these participants had a 3.56 times higher likelihood of ever being diagnosed with an STI. Although many young people stop using condoms with their partner after a while, most of them did not get tested for STIs. More emerging adults (aged 18-24) engage in sexting (sending personal nude pictures and sex videos to others), but the chance that these images are shared with other people than the intended recipient is higher among adolescents (aged 12-17). The results of this study can guide professionals working in sex education and sexual health services to focus their efforts on the risk behaviors in the Netherlands that deserve most attention.

Sexual Trajectories of Lesbian, Gay, and Bisexual Adults in the Netherlands.

Studies on sexual trajectories of lesbian, gay, and bisexual (LGB) people generally focus on the first same-sex attraction and sexual experience, and their relation to self-identification and coming out as LGB. Relational and opposite-sex experiences are generally not taken into account. The aim of this study was to provide a more comprehensive overview of LGBs' sexual trajectories and to distinguish subsamples with different trajectories. A sample of same-sex attracted members of an online research panel (N = 3054) completed a sexual health questionnaire, including items about the timing of sexual and relational milestones. Results showed that the majority of gay men and lesbian women had same-sex sexual and relational experiences, whereas most bisexual men and women had had experiences with the opposite sex. Among gay men and lesbian women, two trajectories emerged, differing mainly on whether people had been sexually or romantically involved with opposite-sex partners, and on age of first same-sex attraction. Among those who were not exclusively attracted to the same sex, six patterns emerged, which differed especially with regard to the nature and comprehensiveness of their same-sex experiences. Within the exclusively same-sex attracted group, the trajectory with no heterosexual experiences related to higher levels of psychological adjustment. For non-exclusive sexually attracted people, trajectories including experience of same-sex relationships seem to be most beneficial. In conclusion, both relational and opposite-sex experiences proved to be important elements of LGB men and women's sexual trajectories.

Developing quality indicators for assessing quality of birth centre care: a mixed- methods study.

BACKGROUND: Birth centres are described as settings where women with uncomplicated pregnancies can give birth in a home-like environment assisted by midwives and maternity care assistants. If complications arise or threaten, the woman is referred to a maternity unit of a hospital where an obstetrician will take over responsibility. In the last decade, a number of new birth centres have been established in the Netherlands, based on the assumption that birth centres provide better quality of care since they offer a better opportunity for more integrated care than the existing system with independent primary and secondary care providers. At present, there is no evidence for this assumption. The Dutch Birth Centre Study is designed to present evidence-based recommendations for organization and functioning of future birth centres in the Netherlands. A necessary first step in this evaluation is the development of indicators for measuring the quality of the care delivered in birth centres in the Netherlands. The aim of this study is to identify a comprehensive set of structure and process indicators to assess quality of birth centre care. METHODS: We used mixed methods to develop a set of structure and process quality indicators for evaluating birth centre care. Beginning with a literature review, we developed an exhaustive list of determinants. We then used a Delphi study to narrow this list, calling on experts to rate the determinants for relevance and feasibility. A multidisciplinary expert panel of 63 experts, directly or indirectly involved with birth centre care, was invited to participate. RESULTS: A panel of 42 experts completed two Delphi rounds rating determinants of the quality of birth centre care based on their relevance (to the setting) and feasibility (of use). A set of 30 determinants for structure and process quality indicators was identified to assess the quality of birth centre care in the Netherlands. CONCLUSIONS: We identified 30 determinants for structure and process quality indicators concerning birth centre care. This set will be validated during the evaluation of birth centres in the Dutch Birth Centre Study.

Sexuality and Autistic-Like Symptoms in Juvenile Sex Offenders: A Follow-Up After 8 Years.

Juveniles who have committed a sexual offense (JSOs) are thought to have abnormal sexual development, as well as increased ASD symptoms. In the current study, sexual development and behavior, as well as stability of ASD-like symptoms were assessed in a sample of 44 male JSOs (mean age 24.7 ± 1.5 years) 8 years after their sexual offence. JSOs exhibited less knowledge of sexuality, less positive attitudes towards pornography and more often reported having been a victim of verbal sexual intimidation than a matched normal population sample. ASD symptoms were relatively stable over the 8 years follow-up, indicating that social difficulties in JSOs may be part of life-long autistic-like traits. However, ASD symptoms were not related to alterations in sexual development or behavior.

Adolescents' Social Network Site Use, Peer Appearance-Related Feedback, and Body Dissatisfaction: Testing a Mediation Model.

Previous correlational research indicates that adolescent girls who use social network sites more frequently are more dissatisfied with their bodies. However, we know little about the causal direction of this relationship, the mechanisms underlying this relationship, and whether this relationship also occurs among boys to the same extent. The present two-wave panel study (18 month time lag) among 604 Dutch adolescents (aged 11-18; 50.7% female; 97.7% native Dutch) aimed to fill these gaps in knowledge. Structural equation modeling showed that social network site use predicted increased body dissatisfaction and increased peer influence on body image in the form of receiving peer appearance-related feedback. Peer appearance-related feedback did not predict body dissatisfaction and thus did not mediate the effect of social network site use on body dissatisfaction. Gender did not moderate the findings. Hence, social network sites can play an adverse role in the body image of both adolescent boys and girls.

Comparing databases: determinants of sexually transmitted infections, HIV diagnoses, and lack of HIV testing among men who have sex with men.

BACKGROUND: Early detection and treatment of STI/HIV are public health priorities. Our objective was to compare characteristics of men who have sex with men (MSM) in Dutch data available in 2010 from EMIS, an international internet survey, Schorer Monitor, a Dutch internet survey, and data from STI- clinic visits, since these might be subject to different and unknown biases. METHODS: Data from Dutch MSM Internet Surveys (EMISNL N = 3,787; Schorer Monitor, SMON N = 3,602), and 3,800 STI clinic visits (SOAP) were combined into one dataset. We included factors that were measured in all three databases. The socio-demographics included were age (at the time of the survey), zip code, and ethnicity. Behavioural variables included were the number of sexual partners, condom use with last sexual partner, drug use, being diagnosed with STI, being diagnosed with HIV, and HIV testing. Outcomes we investigated were being diagnosed with STI, HIV, and never been tested for HIV. RESULTS: Logistic regressions showed that determinants for being diagnosed with STI were having more sexual partners, drug use, and having had an HIV test (aORs 1.3 to 17.1) in EMIS and SMON. Determinants for being diagnosed with HIV in all three databases were older age, living in Amsterdam, and having more partners (aORs 1.8 to 4.4). In EMIS and SMON, drug use, non-condom use, and having STI were additional determinants (aORs 1.6 to 8.9). Finally, determinants associated with never been tested for HIV were being younger (only SOAP), living outside of Amsterdam, having fewer partners, no drug use, and no STI (aORs 0.2 to 0.8). CONCLUSIONS: Risk factors from internet surveys were largely similar, but differed from STI clinics, possibly because it involves self-reports rather than diagnoses or because of differences in timing. The difference between the internet surveys and STI clinic data is much less pronounced for having never been tested, suggesting both are appropriate for this outcome. These findings shed light on conclusions drawn from different data sources, as well as the comparability of recruitment strategies, the robustness of risk factors, consequences of phrasing questions differently, and on (policy) implications based on different data sources.

Prevalence of Non-Volitional Sex Types and Associated Factors: A National Sample of Young People.

BACKGROUND: Non-volitional sex (NVS) in young people continues to be a major public health problem with long-term negative health outcomes. For the first time, the prevalence of different types of NVS and associated factors are compared between young people with same-sex sexual activities and those who have not. METHODS: We obtained data from 10,401 young women and men (aged 12 to 25 years) who participated in a population study on sexual health, the Netherlands. We calculated and compared the prevalence of six types of NVS between women who had sex with men (yWSM) or women (yWSW), and men who had sex with women (yMSW) or men (yMSM). In sexually experienced participants (n = 5986) logistic regression analyses were applied to assess associations with NVS by assault or penetration. Analyses were weighted to represent the Dutch population. RESULTS: The prevalence of NVS ranged from 1% to 61%, depending on type. Prevalence was higher for young women (any: 40.6%) than men (any: 20.4%), and highest for yMSM and yWSW. Prevalence of NVS by assault or penetration was related to a range of socio-demographic, behavioral and social factors, which were largely similar regardless of sex or same-sex-experiences. The NVS perpetrators were in over 70% of cases known to the victim; 1 in 4 cases of NVS by penetration were accompanied by violence. CONCLUSION: A substantial proportion of young people in the Netherlands have experienced NVS. Medical professionals, educators and caregivers should integrate services to continue to address NVS by targeting young people's multifaceted risk profiles and evidenced based interventions for doing so are needed.

Educational Differences in Adolescents' Sexual Health: A Pervasive Phenomenon in a National Dutch Sample.

Educational level is strongly associated with age of first intercourse and risk of unintended pregnancies. This study examined these associations in a large representative sample of Dutch adolescents and also included associations of educational level with other sexual health aspects. Adolescents aged 12 to 25 (3,926 boys and 3,915 girls) completed an online questionnaire that included measures of romantic and sexual experience; the evaluation of their sexual debut; the risk of sexually transmitted infections (STIs) and pregnancy; and sexual attitudes, satisfaction, self-efficacy, knowledge, victimization, and functioning. The results showed that adolescents on a vocational track or who completed fewer years of education were more at risk of several adverse sexual health outcomes than adolescents on an academic track. They had their first sexual experiences at an earlier age; evaluated these experiences less favorably; had less sexual health knowledge and fewer refusal skills; and had a higher risk of unintended pregnancy, STIs, and victimization. Possible explanations for these consistent differences are discussed. Sex education and services should pay specific and targeted attention to less educated young people and tailor their efforts specifically to the needs, characteristics, and realities of this group.