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- Blach, S., et al.
(författare)
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Global change in hepatitis C virus prevalence and cascade of care between 2015 and 2020: a modelling study
- 2022
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Ingår i: Lancet Gastroenterology & Hepatology. - : Elsevier BV. - 2468-1253. ; 7:5, s. 396-415
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Tidskriftsartikel (refereegranskat)abstract
- Background Since the release of the first global hepatitis elimination targets in 2016, and until the COVID-19 pandemic started in early 2020, many countries and territories were making progress toward hepatitis C virus (HCV) elimination. This study aims to evaluate HCV burden in 2020, and forecast HCV burden by 2030 given current trends. Methods This analysis includes a literature review, Delphi process, and mathematical modelling to estimate HCV prevalence (viraemic infection, defined as HCV RNA-positive cases) and the cascade of care among people of all ages (age =0 years from birth) for the period between Jan 1, 2015, and Dec 31, 2030. Epidemiological data were collected from published sources and grey literature (including government reports and personal communications) and were validated among country and territory experts. A Markov model was used to forecast disease burden and cascade of care from 1950 to 2050 for countries and territories with data. Model outcomes were extracted from 2015 to 2030 to calculate population-weighted regional averages, which were used for countries or territories without data. Regional and global estimates of HCV prevalence, cascade of care, and disease burden were calculated based on 235 countries and territories. Findings Models were built for 110 countries or territories: 83 were approved by local experts and 27 were based on published data alone. Using data from these models, plus population-weighted regional averages for countries and territories without models (n=125), we estimated a global prevalence of viraemic HCV infection of 0.7% (95% UI 0.7-0.9), corresponding to 56.8 million (95% UI 55.2-67.8) infections, on Jan 1, 2020. This number represents a decrease of 6.8 million viraemic infections from a 2015 (beginning of year) prevalence estimate of 63.6 million (61.8-75.8) infections (0.9% [0.8-1.0] prevalence). By the end of 2020, an estimated 12.9 million (12.5-15.4) people were living with a diagnosed viraemic infection. In 2020, an estimated 641 000 (623 000-765 000) patients initiated treatment. Interpretation At the beginning of 2020, there were an estimated 56.8 million viraemic HCV infections globally. Although this number represents a decrease from 2015, our forecasts suggest we are not currently on track to achieve global elimination targets by 2030. As countries recover from COVID-19, these findings can help refocus efforts aimed at HCV elimination. Copyright (C) 2022 Elsevier Ltd. All rights reserved.
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- Abbafati, Cristiana, et al.
(författare)
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- 2020
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Tidskriftsartikel (refereegranskat)
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- Deuba, K, et al.
(författare)
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Effectiveness of interventions for changing HIV related risk behaviours among key populations in low-income setting: A Meta-Analysis, 2001-2016
- 2020
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Ingår i: Scientific reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 10:1, s. 2197-
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this review was to conduct a meta-analysis to assess the effectiveness of behavioural interventions to reduce HIV-related risk behaviours among key populations: people who inject drugs, female sex workers, men who have sex with men and transgender in Nepal over the last two decades. Using four electronic databases, we performed a systematic search of the literature on HIV interventions implemented in Nepal and published from January 2001 to December 2016. In addition, grey literature was also scrutinised for potential articles. The search focussed specifically on behavioural interventions (peer education and HIV testing services) targeted for key populations. Random-effects models were used to calculate the pooled odds ratio for dichotomous outcomes (condom use in last sex or unsafe injection practices), pooled HIV prevalence and subgroup analyses by age groups and epidemic zones in Nepal. Forty-three studies with 15,642 participants were included (people who inject drugs: 7105; men who have sex with men and transgender: 2637; female sex workers: 5900). Pooled prevalence showed a higher occurrence of HIV among people who inject drugs (12%) followed by men who have sex with men/transgender (5%) and female sex workers (2%) respectively. There was a significant increase in the odds of condom use among female sex workers, men who have sex with men and transgender who received peer education interventions in both informal and formal setting compared to those who did not. Similarly, the odds of condom use among female sex workers, men who have sex with men and transgender improved significantly among those who received HIV counselling and testing services as compared to those who did not use such services. Subgroup analyses also verified the effectiveness of these interventions for both young and adult key populations and across all three epidemic zones. However, none of the included interventions were found to be effective for reducing unsafe injection practices among people who inject drugs. HIV prevention interventions in Nepal have effectively reduced risky behaviours among female sex workers, men who have sex with men and transgender over the last two decades but not among people who inject drugs. This calls for continued implementation of existing efforts as well as for new interventions adapted to the needs of people who inject drugs.
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- Damas, J, et al.
(författare)
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Prevalence of HIV, Hepatitis C and its related risk behaviours among women who inject drugs in the Kathmandu Valley, Nepal: a cross-sectional study
- 2021
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Ingår i: Therapeutic advances in infectious disease. - : SAGE Publications. - 2049-9361 .- 2049-937X. ; 8, s. 20499361211062107-
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Tidskriftsartikel (refereegranskat)abstract
- People who inject drugs (PWID) are at great risk of HIV and Hepatitis C Virus (HCV). In order to properly design interventions and develop programmes for women who inject drugs, this study assessed the prevalence of HIV, Hepatitis B, Hepatitis C, and syphilis and its risk behaviours among women who inject drugs in the Kathmandu Valley, Nepal. Methods: Through modified network sampling in three districts in the Kathmandu Valley, Nepal, this cross-sectional study enrolled a total of 160 women who inject drugs. Participants’ serum samples were tested for HIV, HCV, Hepatitis B virus (HBV) and syphilis and risk behaviours were assessed through a structured questionnaire. Primary outcome variables were HIV, HCV, HBV and syphilis prevalence, and secondary outcome variables were sharing needles in the past month and using condom in last sexual intercourse. Stepwise logistic regression was used to determine micro- and macroenvironmental factors associated with secondary outcomes. Results: The prevalence of HIV, HCV, and HBV was 8.8%, 21.3%, and 1.9%, respectively. HIV-HCV co-infection rate was 5.6%. Fifteen percent of women who inject drugs reported transactional sex for drugs or money. One in four women who inject drugs (27.5%) reported that they were imprisoned or detained for drug related reasons. In multivariable analysis, women living with HIV who inject drugs were almost four times more likely to use a previously used needle/syringe than women who inject drugs who were HIV negative (aOR: 4.2 CI: 1.1-15.9, p = 0.03), but were almost four times more likely to use a condom during sexual intercourse (aOR: 3.5 CI: 1.1-28.9, p = 0.03). Enrolment in family planning was the main determinant for using condoms in last sexual intercourse (aOR 4.9 CI: 1.6-16.7, p = 0.006). Participants with access to HIV test and counselling (HTC) services were less likely to share needles (aOR: 0.3, 95% CI: 0.1–0.8, p = 0.01). Conclusion: Prevalence of HIV and HCV is high among women who inject drugs in Kathmandu valley of Nepal. Women who inject drugs enrolled in national programmes such as family planning and HTC were positively associated with condom use, and less likely to share needles.
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- Deuba, K, et al.
(författare)
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Condom use behaviour among people living with HIV: a seven-country community-based participatory research in the Asia-Pacific region
- 2018
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Ingår i: Sexually transmitted infections. - : BMJ. - 1472-3263 .- 1368-4973. ; 94:3, s. 200-205
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Tidskriftsartikel (refereegranskat)abstract
- We examined the prevalence of inconsistent condom use and its correlates among people living with HIV (PLHIV) in the Asia-Pacific region.MethodsBetween 1 October 2012 and 31 May 2013, a total of 7843 PLHIV aged 18–50 years were recruited using targeted and venue-based sampling in Bangladesh, Indonesia, Lao People’s Democratic Republic (PDR), Nepal, Pakistan, Philippines and Vietnam. Logistic regression was used to explore the association between condom use behaviour and demographics, social support, stigma and discrimination and various health-related variables.ResultsOverall, 43% of 3827 PLHIV practised inconsistent condom use at sexual intercourse with their regular partner. An even higher proportion, 46% of 2044 PLHIV admitted that they practised unprotected sex with a casual partner. Participants from Lao PDR reported the lowest prevalence of inconsistent condom use for both regular and casual partners, while participants from the Philippines had the highest risk behaviour. Inconsistent condom use was significantly associated with belonging to a key population (drug user, sex worker or refugee subpopulation), not knowing that condoms are still needed if both partners are HIV positive, having a regular partner whose HIV status was either positive or unknown, having experienced physical assault and not receiving antiretroviral treatment.ConclusionsThis large seven-country study highlights a high prevalence of inconsistent condom use among PLHIV in the Asia-Pacific region. In addition to knowledge-imparting interventions, the adoption and expansion of the ‘Test and Treat’ strategy could help to maximise the prevention benefits of antiretroviral treatment.
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- Deuba, K, et al.
(författare)
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HIV decline associated with changes in risk behaviours among young key populations in Nepal: analysis of population-based HIV prevalence surveys between 2001 and 2012
- 2017
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Ingår i: International journal of STD & AIDS. - : SAGE Publications. - 1758-1052 .- 0956-4624. ; 28:9, s. 864-875
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Tidskriftsartikel (refereegranskat)abstract
- We assessed changes in HIV prevalence and risk behaviours among young key populations in Nepal. A total of 7505 participants (aged 16–24 years) from key populations who were at increased risk of HIV infection (2767 people who inject drugs (PWID); 852 men who have sex with men/transgender (MSM/TG); 2851 female sex workers (FSW) and 1035 male labour migrants) were recruited randomly over a 12-year period, 2001–2012. Local epidemic zones of Nepal (Kathmandu valley, Pokhara valley, Terai Highway and West to Far West hills) were analysed separately. We found a very strong and consistent decline in HIV prevalence over the past decade in different epidemic zones among PWID and MSM/TG in Kathmandu, the capital city, most likely due to a parallel increase in safe needle and syringe use and increased condom use. A decrease in HIV prevalence in 22 Terai highway districts, sharing an open border with India, was also consistent with increased condom use among FSW. Among male labour migrants, HIV prevalence was low throughout the period in the West to Far West hilly regions. Condom use by migrant workers involved with FSW abroad increased while their condom use with Nepalese FSW declined. Other risk determinants such as mean age at starting first injection, injection frequency, place of commercial sex solicitation, their mean age when leaving to work abroad did not change consistently across epidemic zones among the young key populations under study. In Nepal, the decline in HIV prevalence over the past decade was remarkably significant and consistent with an increase in condom use and safer use of clean needles and syringes. However, diverging trends in risk behaviours across local epidemic zones of Nepal suggest a varying degree of implementation of national HIV prevention policies. This calls for continued preventive efforts as well as surveillance to sustain the observed downward trend.
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| 29. |
- Deuba, K, et al.
(författare)
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Risk of HIV infection among men having sex with men in Kathmandu Valley, Nepal
- 2014
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Ingår i: Asia-Pacific journal of public health. - : SAGE Publications. - 1941-2479 .- 1010-5395. ; 26:2, s. 126-137
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Tidskriftsartikel (refereegranskat)abstract
- Despite extensive distribution of free condoms and lubricants to prevent HIV transmission among men having sex with men (MSM) in Nepal, the prevalence of HIV and risky sexual behaviors remain high. The influence of individual-level, social-capital, and social-structural factors on HIV risk has been insufficiently explored in MSM. The authors assessed association of these factors with HIV risk among 150 MSM enrolled using snowball sampling in the Kathmandu Valley. HIV risk was calculated on the basis of number and type of sexual partners and condom use during anal sex. Multivariate analysis showed a high risk of HIV infection was significantly associated with being involved in sex work, having no knowledge of male sexually transmitted infection (STI) symptoms, and having a history of STI symptoms. HIV prevention could be made more effective by targeting MSM who are involved in sex work and by improving their knowledge of male STI symptoms and early diagnosis and treatment.
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- Shrestha, R, et al.
(författare)
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Why don't key populations access HIV testing and counselling centres in Nepal? Findings based on national surveillance survey
- 2017
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Ingår i: BMJ open. - : BMJ. - 2044-6055. ; 7:12, s. e017408-
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Tidskriftsartikel (refereegranskat)abstract
- To assess the demographic, behavioural, psychosocial and structural factors associated with non-utilisation of HIV testing and counselling (HTC) services by female sex workers (FSWs) and men who have sex with men/transgender (MSM/TG).MethodsThis study involved a cross-sectional design. We used the national surveillance survey data of 2012, which included 610 FSWs and 400 MSM/TG recruited randomly from 22 and three districts of Nepal, respectively. Adjusted prevalence ratio (aPR) and 95% confidence interval (CI) using modified Poisson regression was used to assess and infer the association between outcome (non-utilisation of HTC in last year) and independent variables.ResultsNon-utilisation of HTC in the last year was 54% for FSWs and 55% for MSM/TG. The significant factors for non-utilisation of HTC among FSWs were depression (aPR=1.4 (95% CI 1.1 to 1.6)), injectable drug abuse (ever) (aPR=1.4 (95% CI 1.1 to 1.8)), participation (ever) in HIV awareness programmes (aPR=1.2 (95% CI 1.0 to 1.4)), experience of forced sex in previous year (aPR=1.1 (95% CI 1.0 to 1.3)) and absence of dependents in the family (aPR=1.1 (95% CI 1.0 to 1.3)). Non-utilisation of HTC among MSM/TG had significant association with age 16–19 years (aPR=1.4 (95% CI 1.1 to 1.7)), non-condom use (aPR=1.2 (95% CI 1.0 to 1.4)), participation (ever) in HIV awareness programmes (aPR=1.6 (95% CI 1.3 to 2.0)), physical assault in previous year (aPR=1.8 (95% CI 1.0 to 3.1)), experience of forced sex in previous year (aPR=0.5 (95% CI 0.3 to 0.9)).ConclusionAlthough limited by cross-sectional design, we found many programmatically relevant findings. Creative strategies should be envisaged for effective behavioural change communication to improve access to HIV testing. Psychosocial and structural interventions should be integrated with HIV prevention programmes to support key populations in accessing HIV testing.
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