Declining trends in HIV and other sexually transmitted infections among female sex workers in Iran could be attributable to reduced drug injection: a cross-sectional study

Epidemiology and spatial distribution of people diagnosed with HIV between 1997 and 2020 in Kerman, Iran

OBJECTIVE

This study described the epidemiology and geographical distribution of people diagnosed with HIV in Kerman, Iran, between 1997 and 2020.

METHODS

We used case-based HIV surveillance data of all people diagnosed with HIV in Kerman between 1997 and 2020. We compared the age, gender, modes of transmission and spatial distribution of newly diagnosed HIV-infected people in three time periods (1997-2004, 2005-2012 and 2013-2020). The χ2 test for trend, one-sample t-test and Kruskal-Wallis H test were used to compare the differences between the three time periods. We also used ArcGIS to map both HIV services and people living with HIV (PLWH) in 2020. The nearest neighbour index and kernel density were used to identify the spatial distribution of PLWH.

RESULTS

A total of 459 (27.5% women) people were diagnosed with HIV during 1997-2020. The proportion of women (9.3% in 1997-2004 and 48.3% in 2013-2020, p<0.001), HIV infection through sexual contacts (11.6% in 1997-2004 and 50.3% in 2013-2020, p<0.001), HIV infection under the age of 5 years (0.8% in 1997-2004 and 5.4% in 2013-2020, p=0.01) and mean age at diagnosis among men (34.9 in 1997-2004 and 39.8 years in 2013-2020, p=0.004) significantly increased over time. 36.2% of diagnosed cases had CD4 counts under 200 x 10ˆ6/L between 2013 and 2020, with no significant improvement over time. Most newly diagnosed cases of HIV were from the eastern parts of the city. The clusters of PLWH in 2020 matched with the locations of HIV services.

CONCLUSION

We observed important changes in HIV epidemiology regarding gender, modes of transmission, number of paediatric cases and density maps over time in Kerman. These changes should be considered for precise targeting of HIV prevention and treatment programmes.

Population size estimation of female sex workers using network scale-up method in Kermanshah city

BACKGROUND

Appropriate estimate of size of the female sex workers as well as the other hard-to-reach-populations plays a crucial role in reaching them with effective preventive measures. This study aimed to estimate the population size of female sex workers in Kermanshah City using the network scale-up method.

METHOD

In this cross-sectional study, of the 1000 pedestrians aged between 18 and 65 years, selected from the population of Kermanshah City via a multistage sampling, were recruited in the study. Face-to-face interview using a questionnaire including the number of FSWs in the social network of the respondent was used to collect the data.

RESULTS

The overall estimated number of female sex workers in the general population was 4848(UI 95%: 4597, 5074). Accordingly, the prevalence of FSWs among women 18 years and older in Kermanshah in 2018 was about 11.92 (UI 95%: 11.30, 12.47) in one thousand. More than half of the female sex workers in the respondent's social network were unmarried and were in the age range of 18 to 29, and had a high school or university degree. Among high-risk behaviors, a history of alcohol consumption accounted for the highest percentage.

CONCLUSION

The number of female sex workers estimated in this study is considerable, which highlights the importance of planning harm reduction interventions in order to alleviate the burden of HIV infection in the population.

Pattern of contributing behaviors and their determinants among people living with HIV in Iran: A 30-year nationwide study

Introduction

A major shift in the routes of HIV transmission seams to be taking place in Iran. Our study aimed to investigate the 30-year trend of major HIV related behaviors in Iran.

Methods

The national HIV/AIDS registry database (from September 1986 to July 2016 with data on 32,168 people newly diagnosed with HIV) was used to study the 30 years trend and demographic determinants of major HIV related behaviors.

Results

The highest rate of drug injection (DI) among people living with HIV (PLHIV) was reported during 1996 to 1999 (p-for trend < 0.001) while the highest rate of sexual activity by minorities or hard to reach groups was during 2004 to 2011 (p-for trend < 0.001). Among males, drug injection was directly associated with being single (OR_{single/married} = 1.34), being unemployed (OR_{unemployed/employed} = 1.94) and having lower level of education (OR_{<highschool/≥highschool} = 2.21). Regarding females, drug injection was associated with being housewife (OR_{housewife/employed} = 1.35) and lower level of education (OR_{<highschool/≥highschool} = 1.85). In females, condomless sexual contact was more common among those younger (OR_20-29/<20 = 6.15), and married (OR_{married/single} = 7.76). However, among males those being single (OR_{married/single} = 0.82), being more educated (OR_{≥highschool/<highschool} = 1.24), and being unemployed (OR_{unemployed/employed} = 1.53) reported more sexual activity by minoritised or hard to reach groups.

Discussion

The pattern of major HIV related behaviors among Iranian males and females have been rapidly changing and people living with HIV (PLHIV) are being diagnosed at a younger age. Health education to younger individuals is an essential HIV controlling strategy among Iranian population. Implementation of surveys in hidden and hard-to-reach populations is also recommended.

HIV prevalence and associated factors among female sex workers in Iran: a bio-behavioral survey in 2020

Despite the overall decline in human immunodeficiency virus (HIV) prevalence, it remains unacceptably high in key populations. This study aimed to estimate prevalence of HIV infection and high-risk behaviors among female sex workers (FSWs). This study was a cross-sectional survey of FSWs conducted between December 2019 and August 2020 in eight geographically diverse cities in Iran. After providing informed consent, participants completed a bio-behavioral questionnaire and after completion of the interview, rapid diagnostic tests (RDT) and dried blood spots (DBS) were collected to determine HIV and syphilis status as per national guidelines, if the women consented. All analyzes were based on RDS adjustment. Weighting was done according to Giles'SS estimator. Among the 1515 FSWs, the overall prevalence of HIV and syphilis were 1.6% (95% CI: 0.8-2.3) and zero, respectively. The highest HIV prevalence was observed in Shiraz (5.1%) and Khorramabad city (1.6%). In addition, HIV-positive FSWs had a higher mean age at first sexual contact than HIV-negative FSWs (21.4 ± 5.6 vs. 17.2 ± 4.2 years). Injection drug use and a history of arrest or incarceration were associated with an increased odds of HIV infection (OR = 6.25; 95% CI: 1.90-20.55 and OR = 4.57; 95% CI: 1.64-12.72, respectively). Based on the results, strategies to improve early HIV diagnosis, harm reduction, and use of testing and treatment strategies are needed to reduce and control HIV infections.

Sexualized Substance Use among Female Sex Workers in Iran: Findings from a Nationwide Survey

Background: Female sex workers (FSWs) are at higher risk of HIV due to high-risk sexual and drug use related behaviors. This study characterized sexualized substance use among FSWs in Iran. Methods: In 2015, 1,337 FSWs were recruited from centers for vulnerable women and through outreach efforts in 13 major cities in Iran. Data were collected via face-to-face interviews from consenting FSWs on a range of socio-demographic and behavioral characteristics. The primary outcome of interest was sexualized substance use, defined as reporting alcohol or drug use before or during sex in the past month. Bivariable and multivariable modified Poisson regression models were used to assess the correlates of sexualized substance use. Adjusted prevalence ratio (aPR) and 95% confidence interval (CI) were reported. Results: The prevalence of sexualized substance use was 31.3% (95% CI: 28.7, 34.0). Inconsistent condom use during sex with clients in the past month (aPR = 1.31; 95% CI: 1.01, 1.71), regular (i.e., at least weekly in the past month) alcohol use (aPR = 2.87; 95% CI: 2.17, 3.80), regular opioid use (aPR = 2.09; 95% CI: 1.45, 3.02), regular stimulant use (aPR = 2.68; 95% CI: 2.12, 3.39), and self-reported HIV negative status (aPR= 1.88; 95% CI: 1.14, 3.10) were significantly and positively associated with sexualized substance use. Conclusions: Sexualized substance use was associated with riskier sexual behavior and self-reported HIV sero-negativity. Harm reduction messaging to FSWs needs to go beyond focusing on sexual health promotion and further highlight the risks associated with sexualized substance use.

Availability of HIV surveillance data in key populations in the countries of the World Health Organization Eastern Mediterranean Region

OBJECTIVES

To present an assessment of key components and results of HIV surveillance activities relevant for understanding HIV epidemics in the countries of the World Health Organization (WHO) Eastern Mediterranean Region among key populations (KPs), which include men who have sex with men (MSM), sex workers, people who inject drugs and transgender people.

METHODS

We examined HIV surveillance data submitted by the National AIDS Programmes of all 22 countries of the WHO Eastern Mediterranean Region via an online database hosted by the WHO since 2011. We also examined journal articles available on PubMed and technical reports on surveillance activities.

RESULTS

Recent (i.e., since 2017) estimates of HIV indicators from integrated bio-behavioral surveys (IBBS) were available from only four countries (Lebanon, Morocco, Somalia, and Tunisia) and population size estimates from two (Afghanistan and Morocco). IBBS indicated an increase in HIV prevalence among KPs in Pakistan, among people who inject drugs and female sex workers in Tunisia, and among MSM in Lebanon. Information on size estimations of KPs was available from 11 countries, and population size estimation data since 2017 had been collected in only Afghanistan and Morocco.

CONCLUSION

Although some countries have been able to progressively expand HIV strategic information systems, there were still few or no HIV data on KPs in almost a third of the countries.

Tele-counseling based on motivational interviewing to change sexual behavior of women living with HIV: a randomized controlled clinical trial

Sexual transmission accounts for the majority of new HIV infections in Iran. More than 80% of HIV-positive persons are sexually active, and nearly 68% reported never using a condom. The present RCT study was conducted on a group of HIV-positive women using internet-based motivational interviewing. The participants, including 100 HIV-positive women, were randomly assigned to an intervention or control group. The intervention group received five weekly internet-based group motivational interviewing sessions focused on reducing risky behaviors, and the control group received routine care. Follow-ups occurred one month and three months after the end of the intervention. The participants completed demographic information, sexual behaviors, HIV knowledge, condom negotiation skills, and HIV-specific perceived social support scales before, one month, and three months after the intervention. Motivational interviewing was effective in improving knowledge about HIV/AIDS, condom negotiation skills, and HIV-specific perceived social support in the intervention group compared to controls. The intervention significantly increased using condoms in vaginal or anal intercourse in the last three months. Still, it was not effective at consistent condom use in all vaginal and anal sex. Further investigation or a larger RCT needs to confirm the using tele-counseling for women living with HIV.

Prevalence and Correlates of Sexual Violence Experienced by Female Sex Workers in Iran: Results from a National HIV Bio-Behavioral Surveillance Survey

Sexual violence increases the risk of adverse health outcomes among female sex workers (FSWs). Using data from the 2015 national bio-behavioral survey, we explored the experience of sexual violence and its associated factors among Iranian FSWs. Lifetime and recent sexual violence were reported by 40.1% and 16.9%, respectively. History of substance use, ever engaging in anal sex, engaging in group sex within the last year, a high number of clients, recent unstable housing, and incarceration increased the likelihood of experiencing recent sexual violence. These findings underscore the need for community-empowerment and policy-level interventions to address violence among FSWs in Iran.

Condomless Sex With Partners and Clients Among Female Sex Workers in Iran: A Systematic Review and Meta-Analysis

ABSTRACT

Condomless sex is the most proximal risk for HIV acquisition among female sex workers (FSWs). We performed a systematic review and meta-analysis to summarize the evidence for the prevalence of condomless sex among FSWs in Iran. A random-effect meta-analysis model was used to pool the prevalence estimates and their 95% confidence intervals (CIs). The pooled prevalence of condomless sex at last sex with a paying client and a nonpaying partner was 34.23% (95% CI: 27.83-40.93) and 48.34 (95% CI: 38.43-58.32), respectively. Last-month inconsistent condom use was 49.01% (95% CI: 21.64-76.71) with paying clients and 60.21% (95% CI: 31.27-85.73) with nonpaying partners. The pooled prevalence of lifetime condom nonuse with any partners/clients was 15.26% (95% CI: 10.68-20.49). These findings indicate that a substantial proportion of FSWs engage in high-risk sexual practices. Community-led programs should be stimulated to improve consistent condom use among FSWs.

Treponema pallidum among Female Sex Workers: A Cross-Sectional Study Conducted in Three Major Cities in Northern Brazil

Female sex workers (FSWs) are an important group of people vulnerable to sexually transmitted infections. Northern Brazil is a rural and socioeconomically underdeveloped region, with lack of epidemiological information on syphilis in key populations. This study investigated the prevalence and factors associated with exposure to Treponema pallidum among FSWs in three major cities in northern Brazil. This cross-sectional study was conducted with a convenience sample of 415 FSWs from the cities of Belém, Macapá, and Rio Branco. Blood samples and personal data were collected from January 2009 to August 2010. Rapid plasma reagin and immunoenzymatic assays were used to detect antibodies against T. pallidum. Logistic regression models were used to determine factors associated with exposure to T. pallidum. In total, 36.1% were exposed to T. pallidum, and 15.7% had active syphilis. Sexual risk behaviors, use of illicit drugs, low education, and reduced monthly income were associated with exposure to T. pallidum. The high rate of exposure to T. pallidum indicates the urgent need for measures to identify, treat, and prevent syphilis and an education program for the valuation, care, and social inclusion of FSWs in northern Brazil.

Treponema pallidum in female sex workers from the Brazilian Marajó Archipelago: prevalence, risk factors, drug-resistant mutations and coinfections

BACKGROUND

Female sex workers (FSWs) are an especially vulnerable group for syphilis and other sexually transmitted infection (STIs). This study determined the prevalence of syphilis in FSWs and factors associated with this disease in the Marajó Archipelago (northern Brazil), as well as the frequency of point mutations (A2058G and A2059G) in the 23S rRNA gene of Treponema pallidum and coinfections with hepatitis B virus (HBV), hepatitis C virus (HCV) and hepatitis D virus (HDV).

METHODS

FSWs were diagnosed using a rapid qualitative test and the isolates were evaluated for the presence of point mutations by real-time PCR. Blood samples with T. pallidum were tested for the presence of HBV, HCV and HDV by ELISA and confirmed by real-time PCR. The factors associated with syphilis were identified using Poisson regression models.

RESULTS

Overall, 41.1% FSWs tested positive for syphilis and 23.5% were infected with strains having A2058G/A2059G point mutations. HBV (23.0%) and HCV (8.1%) were detected among FSWs with syphilis. Six factors were associated with syphilis: low levels of education, reduced income, drug use, unprotected sex, a lengthy career in prostitution and a lack of regular medical check-ups.

CONCLUSIONS

These findings indicate an urgent need for implementation of effective strategies to diagnose, prevent and treat syphilis, as well as other STIs, in this Brazilian region.

HIV testing and its associated factors among street-based female sex workers in Iran: results of a national rapid assessment and response survey

Background

Female sex workers (FSWs) are at a disproportionate risk of sexually transmitted infections and they may face significant barriers to HIV testing. This study aimed to examine HIV testing prevalence and its associated factors among street-based FSWs in Iran.

Method

A total of 898 FSWs were recruited from 414 venues across 19 major cities in Iran between October 2016 and March 2017. Eligible FSWs were women aged 18 years of age who had at least one commercial sexual intercourse in the previous year. HIV testing was defined as having tested for HIV in the lifetime. Bivariable and multivariable logistic regression were used to examine the correlates of HIV testing. We report adjusted odds ratios (aOR) and their 95% confidence intervals (CI).

Result

Overall, 57.8% (95%CI: 20.0, 88.0) of participants reported having tested for HIV, and HIV prevalence among FSWs who tested for HIV was 10.3% (95%CI: 7.5, 13.0). The multivariable model showed that unstable housing (aOR: 8.86, 95%CI: 2.68, 29.32) and drug use (aOR: 3.47, 95%CI: 1.33, 9.06) were associated with increased likelihood of HIV testing. However, FSWs with a higher level of income were less likely to be tested for HIV (aOR: 0.09, 95%CI: 0.02, 0.43).

Conclusion

Almost one in ten street-based FSWs had never tested for HIV. These findings suggest the need for evidence-based strategies such as outreach support and HIV self-testing to improve HIV testing in this marginalized population.

High Lifetime Prevalence of Syphilis in Men Who Have Sex With Men and Transgender Women Versus Low Lifetime Prevalence in Female Sex Workers in Lima, Peru

A study of men who have sex with men, transwomen, and female sex workers in Lima, Peru found that lifetime prevalence of syphilis was substantially lower in female sex workers compared with other groups.

The syphilis epidemic continues to cause substantial morbidity worldwide and is worsening despite ongoing control efforts. Syphilis remains an important public health problem among 3 key populations: men who have sex with men (MSM), transgender women, and female sex workers.

Injection and non-injection drug use among female sex workers in Iran: A systematic review and meta-analysis

BACKGROUND

Illicit drug use is a prevalent risk behavior among female sex workers (FSWs) as it increases the vulnerability of this marginalized population to negative health outcomes, including HIV infection. This systematic review and meta-analysis aimed to estimate the prevalence of injection and non-injection drug use among FSWs in Iran.

METHODS

Systematic searches of PubMed, Embase, Web of Science, Scopus, and PsycINFO (for English records), along with Iranian databases including IranMedex, Iran Psych Magiran, Scientific Information Database, and Irandoc (for Farsi records) were conducted for studies published from inception through to July 2020. We included quantitative studies on injection and non-injection drug use among FSWs. The pooled prevalence and 95% confidence intervals (CI) of recent and lifetime drug injection and non-injection were estimated using random-effects meta-analysis.

RESULTS

Of 458 screened records, 19 met the inclusion criteria. The pooled prevalence of recent non-injection drug use and injection drug use was 56.94% (95% CI: 44.68, 68.78) and 5.67% (95% CI: 2.09, 10.73), respectively. Opium (33.00%, 95% CI: 24.53, 42.05) and crystal methamphetamine (20.68%, 95% CI: 13.59, 28.79) were the most prevalent recent non-injection drugs used. Additionally, the pooled prevalence of lifetime non-injection drug use was 76.08% (95% CI: 66.81, 84.27) and injection drug use was 10.72% (95% CI: 7.02, 15.07).

CONCLUSIONS

This systematic review shows that drug use, both injection and non-injection, is prevalent among FSWs in Iran. These findings highlight the importance of evidence-based harm reduction and treatment programs to reduce the burdens of drug use and its associated potential consequences among these underserved women.

Lifetime and past-month substance use and injection among street-based female sex workers in Iran

BACKGROUND

Street-based female sex workers (FSWs) are highly at risk of HIV and other harms associated with sex work. We assessed the prevalence of non-injection and injection drug use and their associated factors among street-based FSWs in Iran.

METHODS

We recruited 898 FSWs from 414 venues across 19 major cities in Iran between October 2016 and March 2017. Correlates of lifetime and past-month non-injection and injection drug use were assessed through multivariable logistic regression models. Adjusted odds ratios (AOR) and 95% confidence intervals (CI) were reported.

RESULTS

Lifetime and past-month non-injection drug use were reported by 60.3% (95% CI 51, 84) and 47.2% (95% CI 38, 67) of FSWs, respectively. The prevalence of lifetime and past-month injection drug use were 8.6% (95% CI 6.9, 10.7) and 3.7% (95% CI 2.6, 5.2), respectively. Recent non-injection drug use was associated with divorced marital status (AOR 2.00, 95% CI 1.07, 3.74), temporary marriage (AOR 4.31 [1.79, 10.40]), had > 30 clients per month (AOR 2.76 [1.29, 5.90]), ever alcohol use (AOR 3.03 [1.92, 6.79]), and history of incarceration (AOR 7.65 [3.89, 15.30]). Similarly, lifetime injection drug use was associated with ever alcohol use (AOR 2.74 [1.20-6.20]), ever incarceration (AOR 5.06 [2.48-10.28]), and ever group sex (AOR 2.44 [1.21-4.92]).

CONCLUSIONS

Non-injection and injection drug use are prevalent among street-based FSWs in Iran. Further prevention programs are needed to address and reduce harms associated with drug use among this vulnerable population in Iran.

HIV in Iran: onset, responses, and future directions

Iran, a country in the Middle East and North Africa (MENA) region, has been actively involved in the fight against HIV/AIDS over the past three decades. The unique features of the HIV epidemic in Iran are reflected by the modes of transmission and its recent changes to improve management and prevention programs. In this review, we recount the initial onset and subsequent spread of HIV infection in Iran, beginning with the first case diagnosed to the ongoing responses and most recent achievements in controlling this epidemic. Although in the MENA region, Iran is one of the pioneers in implementing pertinent policies including harm reduction services to decrease HIV incidence, drug injection still continues to be the major risk of infection. In line with other nations, the programs in Iran aim at the UNAIDS 90-90-90 targets (UNAIDS 90-90-90 global targets to end the AIDS epidemic by 2020: by 2020, 90% of all people living with HIV will know their HIV status; 90% of all people with diagnosed HIV infection will receive sustained antiretroviral therapy; and 90% of all people receiving antiretroviral therapy will have viral suppression) and to eliminate mother-to-child HIV transmission. In this article, we discuss the strengths and shortcomings of the current HIV programs and offer suggestions to provide a better perspective to track and respond to the HIV epidemic. More generally, our account of the national religious and cultural circumstances as well as obstacles to the approaches chosen can provide insights for decision-makers in other countries and institutions with comparable settings and infrastructures.

Early sex work initiation and its association with condomless sex and sexually transmitted infections among female sex workers in Iran

Early sex work initiation among female sex workers (FSWs) increases their vulnerabilities to high-risk sexual practices and sexually transmitted infections (STIs). We examined the association of early sex work with condomless sex indicators, HIV, and other STIs, including human papillomavirus, chlamydia, trichomoniasis, syphilis, and gonorrhea, among FSWs in Iran. We recruited 1347 FSWs from 13 cities in 2015, with 1296 participants (94.2%) reporting information about their age of sex work initiation. Early sex work was defined as the initiation of selling sex before 18 years of age. Adjusted odds ratios (aORs) and 95% confidence intervals (CIs) were reported using multivariable logistic regression. Overall, 10.1% of FSWs reported early sex work initiation. FSWs who initiated sex work earlier were more likely to report last-month inconsistent condom use (aOR = 3.31, 95% CI: 1.82, 6.02) and condomless sex with last client (aOR = 1.72, 95% CI: 1.15, 2.56). There was no statistically significant association between early sex work and HIV (aOR = 1.40, 95% CI: 0.43, 4.53) and any other STIs (aOR = 1.01, 95% CI: 0.69, 1.48), except for chlamydia (aOR = 2.09, 95% CI: 1.08, 4.04). These findings suggest that FSWs with early sexual debut would benefit from differentiated interventions including screening for STIs and enhanced counseling for condom use.

HIV prevention cascades for injection and sexual risk behaviors among HIV-negative people who inject drug in Iran

BACKGROUND

The HIV prevention cascade complements the HIV treatment cascade and helps evaluate the access to and use of harm reduction programs among HIV-negative individuals at risk for HIV, including people who inject drugs (PWID). This study aimed to estimate the HIV prevention cascades among PWID in Iran.

METHODS

Using data from the 2014 national bio-behavioral surveillance survey, 2,391 PWID were recruited from 31 harm reduction facilities and through outreach efforts across 10 major cities. PWID aged ≥18 years who reported drug injection in the past year were interviewed, and information regarding their demographic characteristics, sexual and drug injection practices, and access to services were gathered. PWID were also tested for HIV infection. We examined the prevention cascade framework among HIV-negative PWID.

RESULTS

The majority of PWID were male (97.6%) and more than half aged ≥ 35 years old (55.5%). Overall, 2,092 (92.5% [95% CI: 90.8, 93.9]) were HIV-negative; 93% of whom knew illicit drug injection could increase the risk of HIV transmission, 54% had access to free-of-charge sterile needles and syringes, 51% used sterile needles and syringes in their last injection practice, and 33% used sterile needles and syringes in all injection practices in the past month. Also, 87.8% (95% CI: 85.1, 90.0) of HIV-negative PWID had sex with any partner in the past year; 88% of whom knew using condoms could reduce the risk of HIV transmission, 35% had access to free-of-charge condoms, 32% used condoms in their last sexual practice, and 18% used condoms in all of their sexual practices in the past month.

CONCLUSION

The majority of HIV-negative PWID in Iran were at risk for HIV acquisition through unsafe drug injection or sexual practices. Harm reduction programs should improve access to free sterile needles, syringes, and condoms for PWID.