Multiple Lifetime Sexual Partners Research Articles

Precancerous cervical lesions and associated factors among women on antiretroviral therapy at Dukem Health Center, Central Ethiopia: A cross-sectional study.

Cervical cancer is a global public health problem and the second most common cancer which leads to morbidity and mortality among women in developing countries like Ethiopia. In Ethiopia, annually 6294 new cervical cancer cases and 4884 deaths are estimated in 2018 alone. This study aimed to assess the prevalence and associated factors of precancerous cervical lesions among women on antiretroviral therapy(ART) at Dukem Health Center, Central Ethiopia. An institution-based cross-sectional study was carried out among randomly selected 257 women receiving ART at Dukem Health Center. Data were collected using a pretested structured questionnaire, medical record review, and visual inspection with acetic acid. Collected data were entered into Epi-info 7.4 and exported to SPSS version 26 for analysis. The prevalence of precancerous cervical lesions and the characteristics of study participants were identified. Utilizing both binary and multivariable logistic regression models, the existence and degree of association with precancerous cervical lesions were determined with a pvalue < 0.05 and a 95% confidence interval. The prevalence of precancerous cervical lesions was 16% (95% CI: 11.7-20.6). Significant association was found between precancerous cervical lesions and a history of STIs (AOR = 4.30, 95% CI: 1.48-12.49), oral contraceptive use (AOR = 6.56, 95% CI: 2.10-20.50), having multiple lifetime sexual partners (AOR = 2.53: 95% CI: 1.05-6.10), and a recent CD4 count of less than 200 cells/mm3 (AOR:11.33, 95% CI: 2.88-24.58). In the study area, the prevalence of precancerous cervical lesions was relatively high. Therefore, concerned bodies are recommended to increase awareness of the prevention of sexually transmitted diseases and limit sexual partners.

P16 expression and recurrent cervical intraepithelial neoplasia after cryotherapy among women living with HIV.

The expression of p16 protein, a surrogate marker for high-risk human papillomavirus (hrHPV), is associated with cervical dysplasia. We evaluated correlates of p16 expression at treatment for high-grade cervical lesions and its utility in predicting the recurrence of cervical intraepithelial lesions grade 2 or higher (CIN2+) following cryotherapy among women with HIV. This is a subgroup analysis of women with HIV in Kenya with baseline cervical biopsy-confirmed CIN2+ who were randomized to receive cryotherapy and followed every six-months for two-years for biopsy-confirmed recurrence of CIN2+. P16 immunohistochemistry was performed on the baseline cervical biopsy with a positive result defined as strong abnormal nuclear expression in a continuous block segment of cells (at least 10-20 cells). Among the 200 women with CIN2+ randomized to cryotherapy, 160 (80%) had a baseline cervical biopsy specimen available, of whom 94 (59%) were p16-positive. p16 expression at baseline was associated with presence of any one of 14 hrHPV genotypes [Odds Ratio (OR) = 3.2; 95% Confidence Interval (CI), 1.03-9.78], multiple lifetime sexual partners (OR = 1.6; 95% CI, 1.03-2.54) and detectable plasma HIV viral load (>1,000 copies/mL; OR = 1.43; 95% CI, 1.01-2.03). Longer antiretroviral therapy duration (≥2 years) at baseline had lower odds of p16 expression (OR = 0.46; 95% CI, 0.24-0.87) than <2 years of antiretroviral therapy. Fifty-one women had CIN2+ recurrence over 2-years, of whom 33 (65%) were p16-positive at baseline. p16 was not associated with CIN2+ recurrence (Hazard Ratio = 1.35; 95% CI, 0.76-2.40). In this population of women with HIV and CIN2+, 41% of lesions were p16 negative and baseline p16 expression did not predict recurrence of cervical neoplasia during two-year follow up.

Worldwide prevalence of human papillomavirus among pregnant women: A systematic review and meta-analysis.

Human papillomavirus (HPV) is the causative agent of cervical cancer and a suspected agent for ovarian and endometrial cancers in women. It is associated with adverse outcomes during pregnancy. To date, there is no estimate of the prevalence of HPV infection in pregnant women at the regional and global levels. This study evaluated the global prevalence of HPV infection based on all observational studies that had reported the prevalence of HPV among pregnant women between January 1980 and December 2021 in PubMed/MEDLINE, Scopus, Web of Science, Embase, and SciELO databases. We utilised a random-effect model to determine the global prevalence and related risk factors of HPV infection. Between-studies heterogeneity was assessed using I2 statistic. Moreover, subgroup and meta-regression analyses were employed to assess the source of heterogeneity and the relationship between HPV prevalence and socio-demographic factors, respectively. Among 144 eligible studies comprising 189 datasets, the overall prevalence rates of HPV at the 95% confidence interval (CI) were estimated as 30.38% (26.88%-33.99%), 17.81% (9.81%-27.46%), 32.1% (25.09%-39.67%), 2.26% (0.1%-8.08%) and 25.5% (23.3%-27.8%) in cervico-vaginal, placenta, serum, amniotic fluid and urine samples, respectively. The highest prevalence rates were estimated for countries in the African region, while countries in the European and Eastern Mediterranean regions showed the lowest prevalence rates. HPV-16 and -18 were the most prevalent isolated strains. The pregnant women living with HIV and those with pregnancy disorders had significantly higher prevalence rates than general pregnant women (p<0.05). The younger ages for first intercourse and pregnancy, multiple lifetime sexual partners, and lower education levels were primary risk factors for HPV infection. In conclusion, although the overall HPV prevalence varied markedly based on sampling sites and geographical locations, the highest prevalence rates were observed in less-developed countries. Our findings imply that implementing behavioural and therapeutic interventions as well as vaccination programs are crucial to prevent and reduce the current burden of HPV infection among pregnant women.

Assessment of the Reach, Usability, and Perceived Impact of "Talking Is Power": A Parental Sexual Health Text-Messaging Service and Web-Based Resource to Empower Sensitive Conversations with American Indian and Alaska Native Teens.

Background: Early sexual debut among American Indian and Alaska Native (AI/AN) adolescents has been associated with an increased risk of teenage pregnancies and sexually transmitted infections, along with an increased risk of having multiple lifetime sexual partners, and engaging in greater frequency of sex, substance abuse, and lack of condom use. A major protective factor against early sexual debut among AI/AN youth is the familial system. Interventions aiming to improve parent–child communication and parental warmth toward adolescent sexual health topics were reported to contribute to positive youth sexual health outcomes, specifically among minority youth. Healthy Native Youth thus developed the Talking is Power text-messaging service to guide parents and caring adults on how to initiate sensitive topics with youth and how to support them in making informed decisions regarding sex and healthy relationships. Methods: Descriptive statistics were used to demonstrate website analytics and reach per views and time spent on each page, and for displaying participants’ responses to the questions on the usability of the Talking is Power text-messaging series. To assess the perceived impact of the series, the differences in mean percentage scores of the question assessing parental comfort in engaging in sexual health topics with youth between pre- and post-intervention were calculated using two-sample t-tests of equal variances. Descriptive content analysis was adopted to highlight emerging themes from open-ended items. Results: When looking at reach, 862 entrances were recorded during the specified time period (5.8% of total entrances to HNY website), while the bounce rate was set at 73.1% (22.6% greater than the industry average), and the exit rate was 54.3% (15.2% greater than the industry average). Series usability was highly ranked on the 5-Likert scale in terms of signing up for a similar series on a different topic, quality of images, texts, and links, relating to prompts, and change in sparking sensitive conversations with youth. High likelihood of recommending the series to a friend or colleague was also reported by participants (0–10). No significant difference in parental comfort levels was reported (p = 0.78 > 0.05). Main themes provided suggestions for improving the series mode of delivery, while others included positive feedback about the material, with the possibility of expanding the series to other adolescent health topics. Conclusion: Lessons learned during the design, dissemination, and evaluation of the resource’s usability, reach, and perceived impact may be of interest to other Indigenous communities who are in the process of adapting and/or implementing similar approaches.

Bullying Victimization and Sexual Behavior Among Adolescents Aged 12–15 Years From 53 Countries: A Global Perspective

BackgroundIdentifying correlates of sexual behavior among young adolescents is critical for preventing adverse outcomes linked to such behavior. AimThis study examined the relationship of bullying victimization with sexual intercourse, multiple sexual partners, and non-condom use in adolescents aged 12–15 years across 53 countries. MethodsCross-sectional data from 145,342 adolescents aged 12–15 years participating in the Global School-based Student Health Survey 2003–2016 were analyzed. Data on bullying victimization were assessed by the question “During the past 30 days, on how many days were you bullied?” OutcomesData on several sexual behaviors were collected: (i) ever having had intercourse, among those who reported having had intercourse; (ii) multiple (≥2) lifetime sexual partners; and (iii) condom use in last sexual intercourse. ResultsMultivariable logistic regression analyses were used to assess the associations. The overall prevalence of any bullying in the past 30 days and lifetime sexual intercourse were 28.8% and 13.1%, respectively. Compared with those who were not bullied in the past 30 days, those who were bullied for 20–30 days were 2.08 (95% CI = 1.65–2.63), 1.70 (95% CI = 1.10–2.63), and 1.72 (95% CI = 1.12–2.67) times more likely to report sexual intercourse, non-condom use, and multiple sex partners, respectively. Clinical ImplicationsThis study provides further evidence that bullying victimization is a global phenomenon and interventions are required to reduce its prevalence and unwanted consequences. Strengths & LimitationsThe main strength was the large sample of young adolescents across 53 countries. However, findings from the present study should be interpreted in light of its limitations. First, the study was cross-sectional in nature and thus the direction of the association cannot be established. Second, the data only included young adolescents who attend school. Third, data were self-reported and thus reporting bias may exist. Fourth, the measure of sexual activity used was not able to distinguish between penetrative and nonpenetrative sex. Fifth, adolescents who are victims of bullying may also be exposed to other types of violence such as child maltreatment and sexual assaults, for which data were not available. Finally, the present data set did not contain data on sexual orientation. ConclusionThese findings highlight the need for interventions either acting to educate about the potential negative consequences or to prevent risky sexual behavior in young adolescents who experience bullying victimization.Smith L, Grabovac I, Jacob L, et al. Bullying Victimization and Sexual Behavior Among Adolescents Aged 12–15 Years From 53 Countries: A Global Perspective. J Sex Med 2020;17:2148–2155.

A Multicountry Study of the Violence-Related Risk Factors for Early Sexual Debut and Risky Sexual Behavior in Adolescents.

Globally, the prevalence of adolescent sexual intercourse and violence is high. However, to date, no study has investigated the association between violence and sexual behavior in a large representative sample of adolescents, while multicountry studies are also lacking. The objective was thus to examine the relationship between being physically attacked and physical fighting with sexual intercourse, multiple sexual partners, and non-condom use among adolescents aged 12 to 15 years from 43 low- and middle-income countries. Cross-sectional data from 127,513 adolescents participating in the Global School-based Student Health Survey 2003-2016 were analyzed. Data on being physically attacked and physical fighting were assessed through self-report. Data on sexual behavior were collected as follows: (a) ever having had intercourse; among those who reported having had intercourse, (b) multiple (≥2) lifetime sexual partners, and (c) condom use in last sexual intercourse. Data were analyzed using multivariable logistic regression analysis with violence as the exposure and sexual behavior as the outcome, with odds ratios being estimated. Physical attack was dose-dependently and significantly associated with all three sexual behavior outcomes with it being associated with 1.42 (95% confidence interval [CI] = [1.16, 1.74]), 2.13 (95% CI = [1.39, 3.27]), and 1.48 (95% CI = [1.10, 2.00]) times higher odds for sexual intercourse, condom non-use, and multiple sex partners, respectively, when the highest category was compared with the lowest (i.e., ≥4 times vs. 0 times). As for physical fights, compared with not being in a fight in the past 12 months, being in a fight ≥4 times was associated with 2.34 (95% CI = [2.03, 2.70]) and 1.98 (95% CI = [1.56, 2.52]) times higher odds for sexual intercourse and multiple sex partners, respectively. In conclusion, in a large global sample of adolescents, physical attack and physical fight were associated with greater risk of engaging in sexual behavior. Multidimensional government programs and policies addressing violence in young adolescents may lead to reduction in early sexual debut and other risky sexual behavior.

Sexual behavior and suicide attempts among adolescents aged 12–15 years from 38 countries: A global perspective

BackgroundThe aim was to investigate the relationship between sexual behaviors and suicide attempts by using data from 38 countries from four World Health Organization regions. MethodsCross-sectional data from 116,820 adolescents aged 12–15 years participating in the Global School-based Student Health Survey 2009–2016 were analyzed. Data on sexual behaviors were collected: (i) ever having had intercourse; among those who reported having had intercourse, (ii) multiple (≥2) lifetime sexual partners and (iii) condom use in last sexual intercourse and past 12-month suicide attempts were self-reported. Associations were analyzed using multivariable logistic regression. ResultsThe prevalence of sexual intercourse and suicide attempts were 13.2% and 9.1%, respectively. A positive association between sexual intercourse and suicide attempts was found in 32 of the 38 countries (pooled OR for whole sample 2.12 [95% CI 1.98–2.27]). Having had multiple sexual partners was associated with increased odds of suicide attempts (pooled OR for whole sample 1.58 [1.27–1.96]). Condom non-use was only associated with suicide attempts among boys in the Americas (OR: 1.75 [1.25–2.45]). ConclusionEngaging in sexual intercourse was associated with increased risk of suicide attempt. Moreover, having had multiple sexual partners may also increase the risk of suicide attempts.

Hepatitis C prevalence and risk factors in Georgia, 2015: setting a baseline for elimination

BackgroundThe country of Georgia launched the world’s first Hepatitis C Virus (HCV) Elimination Program in 2015 and set a 90% prevalence reduction goal for 2020. We conducted a nationally representative HCV seroprevalence survey to establish baseline prevalence to measure progress toward elimination over time.MethodsA cross-sectional seroprevalence survey was conducted in 2015 among adults aged ≥18 years using a stratified, multi-stage cluster design (n = 7000). Questionnaire variables included demographic, medical, and behavioral risk characteristics and HCV-related knowledge. Blood specimens were tested for antibodies to HCV (anti-HCV) and HCV RNA. Frequencies were computed for HCV prevalence, risk factors, and HCV-related knowledge. Associations between anti-HCV status and potential risk factors were calculated using logistic regression.ResultsNational anti-HCV seroprevalence in Georgia was 7.7% (95% confidence interval (CI) = 6.7, 8.9); HCV RNA prevalence was 5.4% (95% CI = 4.6, 6.4). Testing anti-HCV+ was significantly associated with male sex, unemployment, urban residence, history of injection drug use (IDU), incarceration, blood transfusion, tattoos, frequent dental cleanings, medical injections, dialysis, and multiple lifetime sexual partners. History of IDU (adjusted odds ratio (AOR) = 21.4, 95% CI = 12.3, 37.4) and blood transfusion (AOR = 4.5, 95% CI = 2.8, 7.2) were independently, significantly associated with testing anti-HCV+ after controlling for sex, age, urban vs. rural residence, and history of incarceration. Among anti-HCV+ participants, 64.0% were unaware of their HCV status, and 46.7% did not report IDU or blood transfusion as a risk factor.ConclusionsGeorgia has a high HCV burden, and a majority of infected persons are unaware of their status. Ensuring a safe blood supply, implementing innovative screening strategies beyond a risk-based approach, and intensifying prevention efforts among persons who inject drugs are necessary steps to reach Georgia’s HCV elimination goal.

Adolescent Substance Use and Sensation-Seeking on Sexual Behaviors Among Young Adults from Continuation High Schools

Background: Youth from continuation high schools report greater substance use and sensation-seeking than youth from regular high schools, yet their long-term consequences on age at sexual onset and the number of sexual partners are unknown. Objective: To examine substance use, sensation-seeking and sexual behaviors by gender and race/ethnicity and the effects of substance use and sensation-seeking in adolescence on age at sexual initiation and numbers of sexual partners by young adulthood. Methods: Baseline and 4-year follow-up data on youth from 14 continuation high schools in Southern California who participated in a drug abuse prevention intervention were analyzed. Structural equation modeling assessed whether or not substance use or sensation-seeking in adolescence predicted age at sexual onset and numbers of sexual partners by young adulthood. Results: Latinos had lower sensation-seeking and frequency of substance use and a later age at sexual onset than non-Latinos. Males were more likely than females to have multiple lifetime and recent sexual partners. The effects of adolescent substance use on the number of sexual partners by young adulthood were mediated fully by their age at sexual initiation. Sensation-seeking had no direct or indirect effects on sexual behaviors. Conclusions/Importance: Factors leading to and actual sexual risk behaviors among youth from continuation high schools vary by race/ethnicity and gender. Targeting these antecedent factors by race/ethnicity and gender may improve prevention efforts.

Victims and Perpetrators of Intimate Partner Violence Among Sexually Active Youth in a Community With a High HIV Prevalence in Western Kenya

Physical intimate partner violence (IPV) is an important risk factor for sexually transmitted infections, including HIV. We set out to determine the prevalence and correlates of IPV among youth aged 15 to 24 years - in a community with a high HIV prevalence - with a view to recommending strategies to address IPV.We analysed data from an HIV seroprevalence survey, which included participants aged 13 years and above and was conducted between November 2012 and December 2014 in Gem Subcounty, Siaya County, Western Kenya. Participants between 15 and 24 years old (youth) were described as "perpetrators of IPV" if they had done anything to physically hurt their sexual partners in the previous year and as "victims of IPV" if they had been physically hurt by a sexual partner in the same timeframe. Logistic regression was used to determine factors associated with being either a victim or perpetrator of IPV.Of 1,957 participants included in the analysis, 142 (7%) were victims of IPV, and 77 (4%) were perpetrators of IPV. Victims were likely to be women (adjusted odds ratio [AOR] 7.9; 95% CI, 3.6 to 17.5), in a relationship or married (AOR 3.1; 95% CI, 1.8 to 5.4), and to have had multiple lifetime sexual partners. Victims of IPV were also more likely than not to have been subjected to sexual violence in the past (AOR 1.9; 95% CI, 1.0 to 3.4) or recently (AOR 3.9; 95% CI, 2.2 to 6.8). Perpetrators were likely to be men (AOR 2.1; 95% CI, 1.2 to 3.7), with 5 or more lifetime sexual partners (AOR 2.8; 95% CI, 1.3 to 6.3), and to have committed sexual violence recently (AOR 2.9; 95% CI, 1.1 to 7.7).There was a high prevalence of IPV among sexually active youth in this rural community. Study participants were recurrent victims or perpetrators and reported behaviours that put them at risk of HIV acquisition. Health programmes should screen for IPV victims and perpetrators using identified characteristics. Existing policies regarding gender-based violence should be enforced, and future research should focus on the impact of IPV prevention programmes.

Sexual behavioural correlates of herpes simplex virus type 2 infections among pregnant women in South-western Nigeria

Background: Herpes simplex virus type 2 (HSV-2) is the most common cause of genital ulcer disease. It leads to lifelong latent infection and this raises concerns among women of reproductive age, considering the risk of neonatal transmission. This study was undertaken to identify the sexual behavioural correlates of HSV-2 infection as well as negative pregnancy outcomes.Methods: The cross-sectional study was conducted between March and August 2013, in the antenatal clinic of the University College Hospital Ibadan. A total of 270 pregnant women aged 20 to 44 years were enrolled and their serum samples were tested for HSV-2 IgG using type specific third generation ELISA (DIAPRO Milano Italy). Pretested validated questionnaire were used to obtain bio-data, sexual behaviour and obstetrics history of the participants. Data analyses was done using SPSS version 20.Results: The seroprevalence of HSV-2 type specific IgG was 33.3% (90/270). Logistic regression analysis showed that multiple lifetime sexual partners, early age at sexual debut, previous history of sexually transmitted infections (STIs) and having spouses whose work keep them away from home, were independent risk factors for HSV-2 infection. Obstetrics complications such as intrauterine foetal death, congenital malformations and spontaneous abortion were also strongly associated.Conclusions: The predictors of HSV-2 infection in this study may be important in selecting candidates for screening tests and developing strategies towards effective health promotion campaign.

Impact of sexual debut on culturable human seminal microbiota.

Micro-organisms are tightly integrated into host-microbiota ecosystem. Microbiota of human semen has been studied so far mostly in case of infertility or prostatitis. We aimed to reveal possible impact of sexual debut on seminal microbiota in healthy young men. The study group included 68 young healthy men, of them 12 men without sexual experience, 11 men with single lifetime sexual partner and 45 men with multiple lifetime sexual partners. Basic semen parameters were similar for all subgroups, and no correlation between sexual experience and WBC counts in semen was found. A man could harbour one to nine different bacteria in his semen; the total concentration of bacteria ranged from 2.3 to 7.3 log10 CFU/mL of semen. Lower total bacterial concentration and lower bacterial diversity was observed in men without sexual experience than in sexually experienced men (p<0.05), with significant positive correlation between these two parameters (r=0.54; p<0.0001). In conclusion, the sexual debut is associated with the enrichment of seminal microbiota but not with the influx of WBC or changes in basic seminal parameters.

Adolescent Sexting and Risky Sexual Behaviours in Zimbabwe: A Cross-Sectional Study

This study measured the relationship between sexting and risky sexual practices among school-going adolescents (N = 502, 53.8% female). Correlates of sexting to consistent condom use, age at sexual debut, transactional sex, intergenerational sex and multiple sexual partners were calculated. Prevalence of sexting was 13%, with boys twice more likely to have sent a sext compared to girls. Significant associations existed between sexting and sexual intercourse (95% CI 2.57–7.82), multiple lifetime sexual partners (95% CI 2.48–10.746) and intergenerational sex (95% CI 1.06–4.9). Condom use was significantly higher among girls (p < 0.001). Interventions targeting adolescents are likely to have higher impact if they address harmful effects of sexting.

The prevalence and risk factors for Trichomonas vaginalis infection amongst human immunodeficiency virus-infected pregnant women attending the antenatal clinics of a university teaching hospital in Lagos, South-Western, Nigeria.

Trichomonas vaginalis infection is the most prevalent non-viral sexually transmitted infection worldwide. Interactions between this infection and human immunodeficiency virus (HIV) may cause adverse pregnancy outcomes such as preterm labour, premature rupture of membranes, chorioamnionitis, low birth weight and post-abortal sepsis. This study was aimed to determine the prevalence and risk factors of T. vaginalis infection amongst HIV-positive pregnant women attending antenatal care at the Lagos University Teaching Hospital (LUTH), Lagos, Nigeria. This was an analytical cross-sectional study in which 320 eligible participants which included 160 HIV-positive (case group) and 160 HIV-negative (control group) pregnant women were recruited at the antenatal clinic of LUTH. A structured pro forma was used to collect data from consenting participants after which high vaginal swabs were collected, processed and examined for T. vaginalis. The association between categorical variables was tested using the Chi-square test and Fisher's exact test where applicable. All significances were reported at P < 0.05. The prevalence of T. vaginalis infection amongst HIV-positive and HIV-negative pregnant women were 10% and 8.1%, respectively (P = 0.559). Significant risk factors for T. vaginalis infection in the HIV-positive pregnant women were early coitarche (P < 0.005) and multiple lifetime sexual partners (P = 0.021). There was no relationship between the T. vaginalis infection and the immunological markers of HIV infection. While this study does not provide grounds for universal screening of pregnant women for T. vaginalis infection as a tool of reducing HIV acquisition, especially in pregnancy, campaign to create better sexual health awareness should be commenced as a way to contributing to the reduction in T. vaginalis infection during pregnancy and perinatal transmission of HIV.

Victims and Perpetrators of Intimate Partner Violence Among Sexually Active Youth in a Community With a High HIV Prevalence in Western Kenya

Background:Physical intimate partner violence (IPV) is an important risk factor for sexually transmitted infections, including HIV. We set out to determine the prevalence and correlates of IPV among youth aged 15 to 24 years – in a community with a high HIV prevalence – with a view to recommending strategies to address IPV.Methods:We analysed data from an HIV seroprevalence survey, which included participants aged 13 years and above and was conducted between November 2012 and December 2014 in Gem Subcounty, Siaya County, Western Kenya. Participants between 15 and 24 years old (youth) were described as “perpetrators of IPV” if they had done anything to physically hurt their sexual partners in the previous year and as “victims of IPV” if they had been physically hurt by a sexual partner in the same timeframe. Logistic regression was used to determine factors associated with being either a victim or perpetrator of IPV.Results:Of 1,957 participants included in the analysis, 142 (7%) were victims of IPV, and 77 (4%) were perpetrators of IPV. Victims were likely to be women (adjusted odds ratio [AOR] 7.9; 95% CI, 3.6 to 17.5), in a relationship or married (AOR 3.1; 95% CI, 1.8 to 5.4), and to have had multiple lifetime sexual partners. Victims of IPV were also more likely than not to have been subjected to sexual violence in the past (AOR 1.9; 95% CI, 1.0 to 3.4) or recently (AOR 3.9; 95% CI, 2.2 to 6.8). Perpetrators were likely to be men (AOR 2.1; 95% CI, 1.2 to 3.7), with 5 or more lifetime sexual partners (AOR 2.8; 95% CI, 1.3 to 6.3), and to have committed sexual violence recently (AOR 2.9; 95% CI, 1.1 to 7.7).Conclusion:There was a high prevalence of IPV among sexually active youth in this rural community. Study participants were recurrent victims or perpetrators and reported behaviours that put them at risk of HIV acquisition. Health programmes should screen for IPV victims and perpetrators using identified characteristics. Existing policies regarding gender-based violence should be enforced, and future research should focus on the impact of IPV prevention programmes.

Male condom use, multiple sexual partners and HIV: a prospective case-control study in Kinshasa (DRC)

ABSTRACTIn the Democratic Republic of Congo no previous studies have assessed the factors associated with different patterns of condom use and with multiple sexual partners, and the association between condom use simultaneously taking into account multiple sexual partnerships, and HIV infection. We carried out a prospective case–control study. From December 2010 until June 2012, 1630 participants aged 15–49 getting HIV Voluntary Counseling and Testing in a hospital in Kinshasa were selected. Cases were new HIV diagnosis and controls were HIV-negative participants detected along the study period. We recruited 274 cases and 1340 controls that were interviewed about HIV-related knowledge, attitudes and behaviours. Among cases there was a high prevalence of multiple lifetime and concurrent sexual partnerships (89.8% and 20.4%, respectively) and most cases never used condoms with only 1.5% using them consistently. Condom use and multiple partnerships were associated with male, single and high-educated participants. An association was found between multiple lifetime partners and ‘any condom use’ (OR = 2.99; 95%CI: 2.14–4.19) but not with consistent use. Both having two or more multiple concurrent sexual partners or not using condoms were variables similarly and highly associated to HIV risk. The association found between having two or more concurrent sexual partners and HIV was slightly higher (OR = 3.58, 95%CI:2.31–5.56) than the association found between never condom use and HIV (OR = 3.38, 95%CI:1.15–9.93). We found a high prevalence of multiple lifetime sexual partners and an extremely high prevalence of inconsistent condom use, both strongly associated with HIV seropositivity. Local programmes would benefit from comprehensive interventions targeting all behavioural and sociocultural determinants.

Prevalence and Associated Risk Factors of Human Papillomavirus in Healthy Skin Specimens Collected from Rural Anyang, China, 2006–2008

Skin infections with cutaneous human papillomavirus (HPV) have been linked to the development of non-melanoma skin cancer, in which mucosal HPV may also play a crucial role. However, systematic investigations of the distribution and associated factors of HPV infection in healthy skin of the general population are scarce. HPV DNA from palmar exfoliated cells of 2,087 individuals was detected by FAP6085/64 and SPF1/GP6+ primers followed by sequencing. A total of 338 papillomavirus types were detected, with HPV-3, HPV-57, and HPV-49 being the most dominant types. The overall prevalence for HPV DNA on skin was 79.92% and for alpha-, beta-, and gamma-HPV were 27.07%, 38.76%, and 29.56%, respectively. Having multiple lifetime sexual partners (adjusted odds ratio 1.60), being a migrant worker (adjusted odds ratio 2.05, reference: farmers), and frequent bathing (Ptrend= 0.001) were associated with alpha-HPV DNA presence. Advancing age increased the detection risk of beta-HPV (Ptrend= 0.001). Higher education (Ptrend= 0.017) and frequent bathing (Ptrend= 0.001) were positively related to gamma-HPV positivity. This study demonstrates that alpha-HPV commonly exists on healthy skin of the general population in rural China, and alpha- and gamma-HPV infections are related to certain behaviors, different from beta-HPV infection. These findings are crucial to better understanding the biology of HPV infection and may be suggestive of the potential transmission of these viruses.

Social determinants of HIV infection, hotspot areas and subpopulation groups in Ethiopia: evidence from the National Demographic and Health Survey in 2011

ObjectiveThis study identifies social determinants of HIV infection, hotspot areas and subpopulation groups in Ethiopia.DesignThe study used data from the 2011 Ethiopian Demographic and Health Survey (EDHS). Sample blood tests...

Concurrence of oral and genital human papillomavirus infection in healthy men: a population-based cross-sectional study in rural China.

Human papillomavirus (HPV) infection, a primary cause of genital cancer, is also related to the increasing incidence of oropharyngeal cancer among young men. Relatively little is known about the concurrence of oral and genital infection among healthy individuals. Oral and genital swab exfoliated cells were collected simultaneously from 2566 men in rural China. Using general primer-mediated (SPF1/GP6+) PCR and sequencing, HPV testing results were obtained from 2228 men with both valid oral and genital specimens (β-globin-positive). The prevalence of HPV infection was 6.7% in the oral cavity and 16.9% for the external genitalia. Among 43 men (1.9%, 43/2228) with oral-genital coinfection, 60.5% (26/43) harbored an identical HPV type at both sites. The risk of oral HPV infection was higher among men with genital infection than among uninfected men (11.4% vs. 5.7%, Adjusted OR = 2.3, 95% CI: 1.6–3.4). In addition, having multiple lifetime sexual partners was a significant risk for oral-genital HPV coinfection (Adjusted OR = 2.6, 95% CI: 1.0–7.0; 2 partners vs. 1 partner). These findings provide a basis for further understanding the natural history and transmission dynamics of oral HPV infection.

Characteristics of a cluster-randomized phase IV human papillomavirus vaccination effectiveness trial

High-risk human papillomaviruses (hrHPV) cause anogenital and oropharyngeal cancers. HPV-16/18 virus-like particle vaccine formulated with an AS04 adjuvant is very efficacious against hrHPV associated precancers but the herd effects of different vaccination scenarios are not known. Our cluster randomized trial (NCT00534638) assesses the overall and herd effects of vaccinating girls vs. girls and boys. In two school-years (2007–2008 and 2008–2009) we invited 80,272 1992–1995 born early adolescents to a CRT in 33 communities a priori stratified by low, intermediate and high HPV-16/18 seroprevalence. In 11 Arm A communities 90% of participating girls and boys were assigned to receive HPV-16/18 vaccine, in 11 Arm B communities 90% of girls were assigned to receive HPV-16/18 vaccine – boys were assigned to receive hepatitis B-virus (HBV) vaccine, and in 11 Arm C communities all were assigned to receive HBV-vaccine. Prevalence of HPV in vaccinated and unvaccinated girls is studied at age 18.5 years. Recruitment resulted in equal enrolment of four birth cohorts (born 1992–1995) comprising altogether 32,175 (40% response) early adolescents: 20,514 girls (50.5–53.0% response by arm) and 11,661 boys (21.9–31.6%% response by arm). At the age of 15 years, 79.3% of the vaccinees completed a questionnaire. Among them >98% were living at, and during the week-ends 1.3–1.6% stayed outside, the study site communities. Smoking habit and alcohol consumption were similar in the different trial arms, also mean-age of menarche (12.4 years) and 1st ejaculation (12.6 years), and sexual behaviour (among those <25%, who had had sexual debut) did not differ by arm: mean-age at the sexual debut 14.3 and 14.4 in girls and boys, and proportions of those with multiple (≥5) life-time sexual partners (6.5–7.5%) at the age of 15 years. Uniform residential, life-style and sexual behaviour characteristics indicate successful randomization/enrolment of the CRT. Our CRT will verify modelled predictions on up to 31% herd effect of vaccinating both girls and boys with moderate vaccine coverage – quantifying overall effectiveness of different strategies which will soon guide how to implement HPV vaccination.