Risky sexual behavior and self-rated mental health among young adults in Skåne, Sweden - a cross-sectional study

BACKGROUND

Risky sexual behavior is a public health challenge that significantly affects young people's health and well-being in Sweden and throughout the world. Moreover, poor mental health, anxiety and depression among adolescents and young adults have increased in recent years. However, although hypothesized, the associations between general mental health and risky sexual behavior among young adults are less established. Thus, this study aimed to examine the association between self-rated mental health and risky sexual behavior among young adults in southern Sweden.

METHODS

Population-based, cross-sectional survey data from 2968 participants aged 18-30 years old residing in southern Sweden was used (response rate 42%). The survey included questions on sexual behavior, alcohol habits, sociodemographic background, and mental health. Logistic regression was used to examine the associations between mental health, depression, anxiety, and risky sexual behavior, stratified by sex (gender). Indicators for risky sexual behavior included not using a condom, non-condom use with casual partner, and multiple (≥2) sexual partners during the last year.

RESULTS

Generally, male participants rated their depression and anxiety levels considerably lower than their female counterparts. Poor mental health, high depression, and high anxiety scores (levels) were significantly associated with having multiple sexual partners among among female participants; adjusted odds ratios (aOR) was 1.3 (95% CI 1.01 to 1.71). However, findings among males were not statistically significant. Furthermore, overall results indicated that higher depression and anxiety scores were associated with 1.4 and 1.6 higher odds, respectively, of not using condom with a casual partner in the most recent sexual encounter. Similarly, higher anxiety scores were associated with non-condom use in the latest sexual encounter, aOR 1.4 (1.1-1.7), but no significant gender-specific associations were found.

CONCLUSION

The associations found between poor mental health factors and multiple sex partners among females warrant consideration in future public health interventions. Further research to increase the understanding of the causal mechanisms that link mental health factors and risky sexual behavior, especially multiple sex partners, among young adult females is needed to support evidence-based interventions.

Teenagers' and young adults' sexual behaviour and its associations with exposure to violence, among visitors at a Youth Centre in Sweden

OBJECTIVES

This study aimed to investigate differences between teenagers and young adults in sexual behaviours and exposure to emotional, physical and/or sexual violence, and the associations between sexual behaviours and exposure to violence, among youths who visit a Youth Centre in Sweden.

METHODS

A cross-sectional web survey was used among sexually experienced teenagers, aged 15-19, and young adults 20-24 years, wherein a total of 452 participated. Descriptive and bivariate analyses were used in the study.

RESULTS

A majority had unprotected sex during the last year, namely 55.4 % of teenagers and 58.3 % of young adults. A higher proportion of teenagers reported having early sex debut, before 15 years age, compared with young adults (p = .003). A higher proportion of young adults reported having experienced a sexually transmitted infection (p = <.001). Nearly half of the teenagers (44.9 %) and the young adults (44.6 %) stated having been exposed to emotional, physical and/or sexual violence during their lifetime. Associations were found between all types of exposure to violence and having unprotected sex, using alcohol or drugs together with sex, and having had three or more different sex partners during last year.

CONCLUSIONS

Regardless of age, there was a high proportion of youths, visiting a Youth Centre, having unprotected sex and who experienced exposure to violence. As these experiences may negatively affect youths' future sexual and reproductive health, healthcare professionals should identify youths in need or with early-in-life needs.

Regulatory Focus and Sexual Health: Motives for Security and Pleasure in Sexuality are Associated with Distinct Protective Behaviors

We examined if motives for security (i.e., prevention focus) or pleasure (i.e., promotion focus) were uniquely associated with intentions to get tested for STIs and behavioral control over condom use, over and above variables already identified in theoretical models. We conducted an online survey with Portuguese adults (N = 836; M_age = 22.27, SD = 5.14). Overall, 99.4% of the participants knew at least one of eight STIs, but only 25.2% got tested in the last six months. Participants more focused on prevention had condomless sex less frequently, whereas participants more focused on promotion knew more STIs and got tested for more STIs. Furthermore, participants had stronger intentions to get tested for STIs if they got tested for more STIs in the past, were more concerned about STIs, perceived greater susceptibility to STI acquisition, and were more focused on promotion (but not prevention). Participants had greater behavioral control over condom use if they had condomless sex less often and were more focused on prevention (but not promotion). These findings suggest that promotion-focused people are more likely to consider the consequences of having condomless sex. In contrast, prevention-focused people are more likely to take control of their sexual health.

Patterns of sexual behaviour associated with repeated chlamydia testing and infection in men and women: a latent class analysis

BACKGROUND

Adolescents and young adults are at higher risk of acquiring Chlamydia trachomatis infection (chlamydia), so testing is promoted in these populations. Studies have shown that re-testing for chlamydia is common amongst them. We investigated how sexual risk behaviour profiles are associated with repeated testing for chlamydia.

METHODS

We used baseline data from a cohort of 2814 individuals recruited at an urban STI -clinic. We applied latent class (LC) analysis using 9 manifest variables on sexual behaviour and substance use self-reported by the study participants. We fitted ordered logistic regression to investigate the association of LC membership with the outcomes repeated testing during the past 12 months and lifetime repeated testing for chlamydia. Models were fit separately for men and women.

RESULTS

We identified four LCs for men and three LCs for women with increasing gradient of risky sexual behaviour. The two classes with the highest risk among men were associated with lifetime repeated testing for chlamydia: adjOR = 2.26 (95%CI: 1.50-3.40) and adjOR = 3.03 (95%CI: 1.93-4.74) as compared with the class with lowest risk. In women, the class with the highest risk was associated with increased odds of repeated lifetime testing (adjOR =1.85 (95%CI: 1.24-2.76)) and repeated testing during past 12 months (adjOR = 1.72 (95%CI: 1.16-2.54)). An association with chlamydia positive test at the time of the study and during the participant's lifetime was only found in the male highest risk classes.

CONCLUSION

Prevention messages with regard to testing for chlamydia after unprotected sexual contact with new/casual partners seem to reach individuals in highest risk behaviour classes who are more likely to test repeatedly. Further prevention efforts should involve potentially more tailored sex-specific interventions taking into consideration risk behaviour patterns.

Partner Type and Young Women's Sexual Behavior: A Qualitative Inquiry

The incidence of sexually transmitted infections (STIs) has increased over recent years, particularly among young women. Partner type is believed to influence women's STI risk. However, researchers often restrict partner type to "casual" versus "committed," labels that can mask risk variability. Therefore, in this study, we identified and explored a range of sexual partner types in order to understand how young women's perceived risk and condom use intentions vary by partner type. Data were obtained during six focus groups of young women (N =25) who were recruited from a community reproductive healthcare clinic. Women described a range of monogamous and non-monogamous partner types that were distinguished based on partner regularity (i.e., whether the sexual partnership was ongoing) and personal relationship (i.e., degree of involvement outside of the sexual relationship). Women's perceived STI risk was higher and condom use intentions stronger with new partners, particularly unfamiliar partners (i.e., "one-night stand," "fuck boy"). Women identified potential harm from condom negotiation with all but the "friends with benefits" partners. However, the nature of this harm differed by partner type. Clinicians and researchers should consider how to support women in advocating for safer sexual behaviors across these partner types by understanding how partner regularity, degree of personal relationship, and emotional attachment differentially impact couples' condom use decisions.

A dynamic network model to disentangle the roles of steady and casual partners for HIV transmission among MSM

HIV is a sexually transmitted infection (STI) whose transmission process is highly dependent on the sexual network structure of the population under consideration. Most sexual behaviour data is egocentric in nature. We develop a stochastic dynamic sexual network model that utilises this type of egocentric network data. The model incorporates both steady and casual sex partners, and can be seen as a stochastic form of a generalised pair-formation model. We model the spread of an infection where individuals are susceptible, infectious, or successfully treated (and unable to transmit) and derive analytical expressions for several epidemiological quantities. We use sexual behaviour and HIV prevalence data that was gathered among 403 MSM at an STI clinic in Stockholm. To accurately capture transmission dynamics for this population, we need to explicitly model both casual sex partners and steady partnerships. Our model yields an estimate for the mean time until diagnosis followed by successful treatment that is in line with literature. This study indicates that small reductions in the time to diagnosis, and thereby, beginning of treatment, may substantially reduce HIV prevalence. Moreover, we find that moderate increases in condom use with casual sex partners have greater impact on reducing prevalence than the same increases in condom use with steady sex partners. This result demonstrates the relative importance of casual contacts on the HIV transmission dynamics among MSM in Sweden. Our results highlight the importance of HIV testing and condom-use interventions, and the role that casual and steady partners play in this, in order to turn the epidemiological trend in Sweden towards decreased HIV incidence.

ERPs Reveal Disengagement Processes Related to Condom Use Embarrassment in Intention-Behavior Inconsistent Young Adults

The use of barrier protections such as condoms has consistently been reported to reduce the acquisition of sexually transmitted infections. However, it has also been reported that the association between condom use intentions and behavior is, at best, often weak. Furthermore, embarrassment associated with purchasing condoms and negotiating their use has been shown to negatively impact the frequency of condom use. Using electroencephalography to analyze P300 event-related potential components known to measure early attention allocation, we examined electrophysiological evidence of early attention disengagement for embarrassing health information. Forty young adults-34 females and six males-participated in an adapted version of Posner's visual cueing paradigm. All were high in intention to use condoms, but half were intention-behavior consistent and half were intention-behavior inconsistent. Compared to intention-behavior consistent participants, those with intention-behavior inconsistency showed a reduced P300 component when attending to a visual target opposite to the field in which embarrassing self-relevant health information was presented, indicating more efficient early attention disengagement from such embarrassing health information. In conclusion, our electrophysiological data suggest that high intention alone may be not sufficient to predict adolescents' condom use behavior.

Rethinking Risk, Culture, and Intervention in Collective Sex Environments

This article provides a narrative overview of research on HIV/STI risk and collective sexual behavior based on an inclusive analysis of research on environments where people gather for sexual activity-sex clubs, swingers' clubs, bathhouses, parks, private sex parties, etc. The aim is to analyze how collective sex has been approached across disciplines to promote conversation across paradigms and suggest new lines of inquiry. Attention to context-such as the location of sex-was a necessary redress to universalizing models of sexual risk-taking behavior, leading to insights rooted in the particularities of each environment and its users. However, the identification of ever more precise risk groups or environmental idiosyncrasies eventually becomes theoretically restrictive, leading to an overestimation of the uniqueness of sexual enclaves, and of the difference between any given enclave and the broader social milieu. Using a theoretical framework of transgression to interpret the interdisciplinary literature, similarities in the spatial and social organization of collective sex environments are identified. Insights generated from this complementary perspective are then applied to understandings of collective sex: first, the example of male-female (MF) "swingers" is used to illustrate the need to establish, rather than assume, the distinctiveness of each non-normative sexual enclave, and to broaden the conceptualization of context; second, questions are raised about the practicality of interventions in collective sex environments. Finally, new lines of intellectual inquiry are suggested to shed light not just on collective sex but on sociosexual issues more generally, such as increasing protective sexual health behavior or negotiating consent in sexual encounters.

Inferring individual sexual action dispositions from egocentric network data on dyadic sexual outcomes

In this paper we present a family of models that allows us to estimate egos' unobserved action dispositions from a joint behavioural outcome of a dyadic social interaction process of both egos' and alters' action dispositions. The method is put to test on a data set containing two different types of dyadic activities of high relevance for the spread of sexually transmitted infections (STI), condom use and anal sex. The data consists of individuals older than 15 years old who visited one of the nine youth clinics in the Vastra Gotaland region of Sweden between February 2010 and March 2011 for STI testing. This is hence a group of special interest for STI interventions. We cannot find any difference in condom disposition between women and men. Condoms are initially used more often in less risky types of relationships, especially if the partner ends up as a main partner. When studying the disposition towards anal sex we do however find a difference between men and women. Women are more against practising anal sex than men while the majority of men are neutral towards anal sex.

Catch-up HPV vaccination status of adolescents in relation to socioeconomic factors, individual beliefs and sexual behaviour

In 2012, human papillomavirus (HPV) vaccination was introduced free of charge in the Swedish national school-based vaccination programme for 10-12-year-old girls, and as catch-up vaccination for young women. In Sweden, there is an ongoing discussion about including boys in the national vaccination programme. Few studies are undertaken about adolescents’ knowledge, beliefs and HPV vaccination status in relation to socioeconomic status and sexual experience. Thus, the aim was to examine HPV catch-up vaccination status in adolescents in relation to 1) socioeconomic factors, 2) beliefs and knowledge about HPV prevention, and 3) sexual behaviour. The Health Belief Model was used as a theoretical framework. Upper secondary school students (n = 832) aged 16, randomly chosen from a larger sample, were invited to participate in conjunction with the general health interview with the school nurse. A total of 751/832 (90.3%), girls (n = 391, 52%) and boys (n = 360, 48%) completed the questionnaire. HPV vaccination was associated with ethnicity and the mothers’ education level; i.e. girls with a non-European background and girls with a less educated mother were less likely to have received the vaccine (p<0.01 and p = 0.04 respectively). Vaccinated girls perceived HPV infection as more severe (p = 0.01), had more insight into women’s susceptibility to the infection (p = 0.02), perceived more benefits of the vaccine as protection against cervical cancer (p<0.01) and had a higher intention to engage in HPV-preventive behaviour (p = 0.01). Furthermore, boys and girls were almost equally sexually experienced, although fewer girls had used condom during first intercourse with their latest partner (p = 0.03). Finally, HPV vaccinated girls were less likely to have unprotected sex (p<0.01). In summary, catch-up HPV vaccination among young girls was associated with a European background and high maternal education level, as well as more favourable beliefs towards HPV prevention and less sexual risk-taking. Further preventive measures should therefore be directed at the migrant population.

Measures of Attitudes Toward and Communication about Condom Use: Their Relationships With Sexual Risk Behavior Among Young Black Men Who Have Sex With Men

OBJECTIVE

The aim of this study was to construct and test measures of psychosocial mediators that could be used in intervention studies seeking to promote safer sex behavior among young black men who have sex with men (YBMSM).

METHODS

A total of 400 YBMSM, ages 18 to 29 years, were recruited from a clinic for sexually transmitted infection in the southern United States. All men had engaged in penile-anal sex with a man as a "top" in the past 6 months. The men completed an audio-computer-assisted self-interview and provided specimens used for nucleic acid amplification testing to detect Chlamydia and gonorrhea. Four measures were constructed and tested for criterion validity (Safer Sex Communication, Condom Turn-Offs, Condom Pleasure Scale, and a single item assessing frequency of condom use discussions before sexual arousal).

RESULTS

With the exception of Safer Sex Communication, all of the measures showed criterion validity for both unprotected anal insertive and unprotected anal receptive sex. With the exception of the Condom Turn-Offs, the 3 other measures were supported by criterion validity for oral sex. Both the Condom Turn-Offs and Condom Pleasure Scale were significantly related to whether or not the men reported multiple partners as a top, but only the Condom Pleasure Scale was associated with reports of multiple partners as a "bottom." Only the Condom Turn-Offs Scale was positively associated with having been diagnosed with either Chlamydia or gonorrhea.

CONCLUSION

Findings provide 3 brief scales and a single item that can be used in intervention studies targeting YBMSM. Perceptions about condoms being a turnoff and about condoms enhancing pleasure showed strong association with sexual risk behaviors.

Finding Influential Spreaders from Human Activity beyond Network Location

Most centralities proposed for identifying influential spreaders on social networks to either spread a message or to stop an epidemic require the full topological information of the network on which spreading occurs. In practice, however, collecting all connections between agents in social networks can be hardly achieved. As a result, such metrics could be difficult to apply to real social networks. Consequently, a new approach for identifying influential people without the explicit network information is demanded in order to provide an efficient immunization or spreading strategy, in a practical sense. In this study, we seek a possible way for finding influential spreaders by using the social mechanisms of how social connections are formed in real networks. We find that a reliable immunization scheme can be achieved by asking people how they interact with each other. From these surveys we find that the probabilistic tendency to connect to a hub has the strongest predictive power for influential spreaders among tested social mechanisms. Our observation also suggests that people who connect different communities is more likely to be an influential spreader when a network has a strong modular structure. Our finding implies that not only the effect of network location but also the behavior of individuals is important to design optimal immunization or spreading schemes.