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In Australia, pre-exposure prophylaxis (PrEP) is targeted to individuals at high risk for HIV infection. We describe the HIV risk profile and characteristics of PRELUDE participants, and evaluate the population validity of the sample in representing high-risk gay and bisexual men (GBM) eligible for PrEP. PRELUDE is an on-going, open-label, single-arm observational study. Participants were identified in clinics and screened for eligibility using a paper-based risk assessment tool which followed the New South Wales (NSW) PrEP guidelines. Selection was validated using an independent online behavioural survey, completed by study participants upon enrolment. Demographic information was analysed using descriptive statistics, and kappa tests were used to determine agreement between reporting of high-risk practices in the risk assessment and behavioural survey. During 2014-15, 471 individuals were targeted for enrolment; 341 were assessed for PrEP eligibility and 313 were enrolled. Of these, 303 (97%) identified as GBM. Overall, 85% of GBM met at least one high-risk criterion; 68% reported receptive intercourse with an HIV-positive or unknown status casual male partner, and 37% reported methamphetamine use in the three months preceding enrolment. The remaining 15% were enrolled based on medium-risk behaviours, or at the clinicians' discretion. We found an 82% total agreement between self-reported high-risk behaviour and clinicians' categorisation of GBM as being at high risk for HIV based on PrEP eligibility criteria. Behavioural eligibility criteria used by clinicians successfully identified individuals at high risk for HIV infection. This targeted approach ensures that the greatest public health and HIV prevention benefits can be derived in a setting without universal access to PrEP.

New HIV diagnoses continue to disproportionately affect overseas-born men who have sex with men (MSM). A retrospective study of all pre-exposure prophylaxis (PrEP)-eligible MSM attending Sydney Sexual Health Centre for the first time in 2021 analysed self-reported PrEP-use, PrEP prescribed at the initial consult, and PrEP taken during 2021 using binomial logistic regression models. A total of 1367 clients were included in the analysis, 716 (52.4%) were born overseas and 414 (57.8%) were Medicare-ineligible. Medicare-ineligible clients were less likely to be on PrEP at initial visit (OR 0.45, 95% CI 0.26–0.77). This study suggests inequities in PrEP access and/or awareness in Medicare-ineligible MSM in Australia.

ObjectivesIn 2019, informed by favourable patient and provider acceptability surveys and concerns about antimicrobial resistance, Sydney Sexual Health Centre stopped routinely providing empirical antibiotic treatment to asymptomatic contacts of Chlamydia trachomatis (chlamydia) and Neisseria gonorrhoea (gonorrhoea). We aimed to assess if this policy change had any negative impact on patient outcomes.MethodsA retrospective file review of people who presented as asymptomatic contacts of chlamydia and gonorrhoea cases before and after the policy change was conducted. Data on infection type, test results and treatment were extracted. For contacts who tested positive and were treated non-empirically, additional data were reviewed including sexual activity and symptom or complication development between testing and treatment, time from testing to notification and treatment and loss to follow-up.ResultsOf 1194 asymptomatic sexual contacts of chlamydia or gonorrhoea, most tested negative to both infections (814, 68%). All contacts with a positive result who were not treated empirically were notified of their result and 173 (99%) were treated within a mean time of 5 days. More contacts were overtreated in 2018 (n=355, 58%) under the empirical treatment model compared with 2019 (n=58, 11%, p≤0.001). There was no significant difference in the proportion of contacts who tested positive and were treated (p=0.111) or developed symptoms (p=0.413) before and after the policy change and no contacts who were treated non-empirically developed complications of pelvic inflammatory disease, epididymitis or proctitis between testing and treatment.ConclusionIn this population, a switch from empirically treating all asymptomatic contacts to treating only those who tested positive significantly reduced antibiotic overuse with minimal adverse outcomes. Our findings support results-directed treatment for asymptomatic sexual contacts of chlamydia and gonorrhoea.

This Letter reports on perimenopausal and menopausal symptoms among Chinese-speaking commercial sex workers (CSWs) attending Sydney Sexual Health Centre. Forty-six CSWs aged ≥45 years were screened using a modified Greene Climacteric Scale. Sixteen showed symptoms of oestrogen deficiency, and 31 reported vaginal dryness causing painful sex. Given the physical demands of sex work, these symptoms may impact quality of life and ability to work. Findings highlight the need for culturally sensitive, accessible healthcare services to address the menopausal health concerns of CSWs and reduce barriers to care.

Background: Retesting rates for chlamydia in Australia are low. Chlamydia home sampling has been shown to increase retesting rates. Sydney Sexual Health Centre introduced chlamydia home sampling in 2019. The aim of this study is to describe home sampling in a real world setting. Methods: In this retrospective study, the total number of heterosexual males and non-sex-working females who tested positive for chlamydia at a urogenital site (1 November 2019 to 31 October 2020) were identified based on local diagnostic codes. Agreeing participants who were sent a home sampling SMS reminder at 2.5 months were included for further analysis. Descriptive statistics and attrition rates of the home sampling were calculated using frequencies and percentages. Bivariate analyses of the main covariates by each stage, assessing crude associations, were performed using chi-squared tests. Results: A total of 444 people attending Sydney Sexual Health Centre were eligible for the chlamydia home sampling option, 25.9% agreed to be sent the home sampling SMS invitation, of which 53 (46.1%) replied and were mailed a home sampling kit, with 43.4% returning the kit; of these 3 (13.0%) were positive for chlamydia. The majority (91.3%) of tests were performed within 6 months of original diagnosis. Of those who initially agreed but then did not undertake home sampling, 22.6% subsequently tested in clinic at Sydney Sexual Health Centre. There were no associations between any of the variables measured and undertaking home sampling. Conclusions: Home sampling process for chlamydia reinfection screening in heterosexual men and non-sex-working women had much lower uptake than seen in a previous trial with high attrition rates at each stage.

ObjectivesBetween 2013 and 2014, a third of Australian adults reported using the internet to investigate medical symptoms before consulting a medical practitioner. However, there is limited evidence regarding internet health information seeking behaviour (HISB) in sexual health. This study aims to determine the frequency, predictors and accuracy of internet HISB for sexual health self-diagnosis.MethodsA cross-sectional paper-based survey, available in English, Chinese and Thai, was conducted during April to August 2019 at the Sydney Sexual Health Centre (SSHC). Symptomatic patients were recruited to answer an 18-item survey on their HISB, self-assessed diagnosis, anxiety and health literacy. Survey responses were correlated with SSHC electronic medical record data including participant demographics and clinician diagnosis. Data analyses were performed using Stata V.14.ResultsThe majority of participants searched the internet (355; 79.1%) before attending clinic, and of these only 16.9% made a correct self-diagnosis. Multivariate analyses demonstrated that relative to Australian-born participants, people born in Asia were twice as likely to undertake internet HISB (adjusted OR (AOR) 2.41, 95% CI 1.25 to 4.64, p<0.01), and those born in Latin America were more likely to self-diagnose correctly (AOR 3.35, 95% CI 1.20 to 9.37, p<0.01). On average, participants who searched the internet scored higher relative to those who did not search, on measures of feeling generally tense (2.26, 95% CI 2.16 to 2.7 and 1.86, 95% CI 1.67 to 2.05, p<0.001), upset (1.96, 95% CI 1.85 to 2.08 and 1.53, 95% CI 1.35 to 1.72, p<0.001) and worried (2.55, 95% CI 2.44 to 2.65, and 2.16, 95% CI 1.95 to 2.38, p=0.001).ConclusionsThis study has filled important gaps in the literature and highlighted the high prevalence of adults engaging in HISB for sexual health information. Of concern are the increased levels of anxiety and low accuracy of self-diagnoses associated with HISB. Strategies to direct patients to reputable and user-friendly health websites that mitigate anxiety and misinterpretation of online health information should be explored.

Objectives To describe antibiotic use for treatment of Mycoplasma genitalium (MG) at an urban sexual health centre in Australia. To describe MG positivity rates in those returning for 1 month test of cure (TOC) following first-line antibiotic treatment for MG. Methods Retrospective cross-sectional case-note review for all patients diagnosed with MG at Sydney Sexual Health Centre from 2009 to 2013. Results Two hundred and eighteen MG cases were identified; 66% were male and 90% were symptomatic at presentation. Four people did not return for treatment. Azithromycin containing regimens were prescribed as first-line treatment in 88% of cases; azithromycin 1 g stat in 75% of cases and a course of extended azithromycin 1 g stat plus 500 mg daily for 4 days in 14% of cases. TOC was performed in 53% (95% CI 46% to 60%) of cases and 28% (95% CI 20% to 38%) of these cases were MG-positive at TOC. Of those having a MG-positive result at TOC, 26% received azithromycin 1 g stat and 33% received extended azithromycin. Accounting for cases lost to follow-up in azithromycin containing regimens, the positive MG TOC rate was estimated to be between 15% and 61%. Conclusions High rates of MG positivity were found in those attending TOC following first-line treatment of MG with azithromycin containing regimens.

Background. Completion rates for human immunodeficiency virus (HIV) postexposure prophylaxis (PEP) are low. We investigated the adherence and safety of coformulated emtricitabine (FTC), rilpivirine (RPV), and tenofovir disoproxil fumarate (TDF) as a 3-drug, single-tablet regimen for PEP in men who have sex with men (MSM). Methods. In an open-label, single-arm study at 2 public sexual health clinics and 2 hospital emergency departments in urban Australia, 100 HIV-uninfected MSM requiring 3-drug PEP received single-tablet FTC-RPV-TDF once daily for 28 days. The primary endpoint was premature PEP cessation or primary HIV infection through week 12. Additional endpoints were adherence (by self-report of doses missed or not ingested with a meal, by pill count, and by plasma concentrations of tenofovir and FTC at week 4); and safety (clinical and laboratory adverse events [AEs]). Results. PEP completion was 92% (95% confidence interval, 85%–96%); premature cessation resulted from loss to follow-up (6%), AEs (1%), or study burden (1%). No participant was found to acquire HIV through week 12. Adherence was 98.6% (standard deviation [SD], 2.4) by pill count and 98.5% (SD, 2.7) by self-report; 86% reported taking all doses with food, and 88% of the subset tested had plasma tenofovir levels suggesting full adherence (>40 ng/mL). Eighty-eight participants experienced at least 1 clinical AE; 4 had grade 3 AEs or higher, possibly attributable to study drug. Fifty-six participants experienced at least 1 laboratory AE; 4 had AEs of grade 3 or higher, possibly attributable to study drug. Conclusions. A single-tablet regimen of FTC-RPV-TDF was well tolerated as once-daily PEP, with high levels of adherence and completion. Clinical Trials Registration. NCT01715636.

In New South Wales (NSW), Australia, innovative community-based testing models have been implemented to increase HIV testing among populations at risk. The characteristics of patients newly diagnosed with HIV at a community-based testing site and at a traditional clinical service in Sydney, NSW, were compared. Compared with the clinical service, clients diagnosed at the community-based site were more likely to be diagnosed at their first visit and report no prior HIV test. A high proportion of clients at both sites had a preferred language other than English. Innovative HIV testing models are reaching under-tested populations, but could be further improved.

Background Previous guidelines at the Sydney Sexual Health Centre (SSHC) recommended empirical antibiotic treatment for asymptomatic contacts of Neisseria gonorrhoeae at the time of testing. With increasing concerns around gonorrhoea antibiotic resistance, it has been suggested that asymptomatic contacts should only be treated based on test results. This retrospective study of data from the SSHC electronic medical record included a total of 295 gonorrhoea contacts from 1 January 2018 to 30 June 2018. The primary outcome was the proportion of asymptomatic gonorrhoea contacts with a positive gonorrhoea result from any anatomical site. Statistically significant differences in gonorrhoea positivity according to gender, sexual preference, use of PrEP, sex worker status, country of birth, preferred language and number of partners, were calculated using Fisher's exact test. The overall proportion of asymptomatic gonorrhoea contacts with a positive gonorrhoea result was 27.1% (95% CI: 22.1-32.6%). The proportion of gonorrhoea positivity was significantly higher in females compared to males (52.0% vs 25.7%, P < 0.01), gay and bisexual men compared to heterosexual men (28.7% vs 0%, P < 0.01) and non-users of PrEP compared to PrEP users (31.2% vs 12.5%, P < 0.05). No statistically significant differences in gonorrhoea positivity were found in subgroups divided by sex worker status, country of birth, preferred language and number of partners. The relatively low gonorrhoea positivity rate (27.1%) in asymptomatic gonorrhoea contacts at the SSHC between January and June 2018 supports guideline changes to no longer provide empirical antibiotic treatment to asymptomatic contacts.