Sin How Lim

Dr. Sin How Lim

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 September 2017 in PLOS ONE
Verified
Journal Article
Open access
PDF file
SLSin How Lim
Sin How Lim
GMGitau Mburu
Gitau Mburu
ABAdam Bourne
Adam Bourne
JPJoselyn Pang
Joselyn Pang
JWJeffrey A. Wickersham
Jeffrey A. Wickersham
IAIskandar Azwa
Iskandar Azwa
We examined willingness to use pre-exposure prophylaxis (PrEP) for HIV prevention among men who have sex with men (MSM) in Malaysia. An online survey of 990 MSM was conducted between March and April 2016. Eligibility criteria included being biological male, Malaysian citizen, 18 years of age or above, identifying as MSM, and being HIV negative or unknown status. Participants’ demographics, sexual and drug use behaviors, attitudes towards PrEP, and preferences regarding future access to PrEP were collected. Bivariate analysis and logistic regression were performed to determine factors associated with willingness to use PrEP. Fewer than half of participants (44%) knew about PrEP before completing the survey. Overall, 39% of the sample were willing to take PrEP. Multivariate logistic regression indicated that Malay men (AOR: 1.73, 95% CI:1.12, 2.70), having 2 or more male anal sex partners in the past 6 months (AOR: 1.98, 95% CI: 1.29, 3.05), previous knowledge of PrEP (AOR: 1.40, 95%CI: 1.06, 1.86), lack of confidence in practising safer sex (AOR: 1.36, 95% CI: 1.02, 1.81), and having ever paid for sex with a male partner (AOR: 1.39, 95% CI: 1.01, 1.91) were independently associated with greater willingness to use PrEP, while men who identified as heterosexual were less willing to use PrEP (AOR, 0.36, 95% CI: 0.13, 0.97). Majority of participants preferred to access PrEP at affordable cost below 100 Malaysian Ringgit (USD25) per month from community based organisations followed by private or government hospitals. Overall, MSM in Malaysia reported a relatively low level of willingness to use PrEP, although willingness was higher among those previously aware of PrEP. There is a need to provide PrEP at affordable cost, increase demand and awareness of PrEP, and to provide access to this preventative medication via diverse, integrated and tailored sexual health services.


1 October 2020 in AIDS Education and Prevention
Verified
Journal Article
Closed access
SCSu Zhen Ching
Su Zhen Ching
LWLi Ping Wong
Li Ping Wong
MSMas Ayu Said
Mas Ayu Said
SLSin How Lim
Sin How Lim

FMFrancesca Maviglia
Francesca Maviglia
Jeffrey A. WickershamJeffrey A. Wickersham
Jeffrey A. Wickersham
IAIskandar Azwa
Iskandar Azwa
NCNicholas Copenhaver
Nicholas Copenhaver
OKOlivia Kennedy
Olivia Kennedy
Roman ShresthaRoman Shrestha
Roman Shrestha
Background: Chemsex is the use of illicit drugs—particularly methamphetamine, gamma hydroxybutyrate (GHB), and gamma-butyrolactone (GBL)—to enhance sexual activity. Chemsex, which occurs primarily among communities of men who have sex with men (MSM), is associated with greater HIV risk behaviors, including multiple sex partners, group sex, condomless sex, and injection drug use. Despite evidence showing chemsex engagement among Malaysian MSM, there is a paucity of research on chemsex among MSM in Malaysia. Methods: This cross-sectional study was conducted through an online survey (August to September 2021) among 870 Malaysian MSM. Participants were recruited through targeted advertisements on social networks. We collected information regarding participants’ recent (<6 months) engagement in chemsex, demographic characteristics, psychosocial factors, pre-exposure prophylaxis (PrEP) knowledge and history, and recent sexual- and drug-related behavior. Multivariable logistic regression was used to identify factors associated with recent (<6 months) chemsex engagement. Results: Just under 1 in 10 (9.0%) of participants reported having engaged in chemsex in the previous six months. More than two-thirds of participants (69.1%) had not disclosed their sexual orientation to anyone in their family and 35.2% reported moderate to severe depressive symptoms. Multivariable analysis found that recent injection drug use (adjusted odds ratio: aOR = 6.61; 95% confidence interval: CI, 2.30–19.03), having shared pre-exposure prophylaxis (PrEP) with someone else (aOR = 5.60; 95% CI, 1.76–17.77), higher perceived HIV risk (aOR = 3.15; 95% CI, 1.25–7.93), knowing someone using PrEP (aOR = 2.93; 95% CI, 1.62–5.31), recent engagement in transactional sex (aOR = 2.38; 95% CI, 1.06–5.39), having a recent STI diagnosis (aOR = 2.36; 95% CI, 1.25–4.44), recent engagement in anal sex (aOR = 2.21; 95% CI, 1.07–4.57), and recent sexual intercourse with an HIV-positive partner (aOR = 2.09; 95% CI, 1.07–4.08) were associated with recent engagement in chemsex. Conclusions: Malaysian MSM who practice chemsex are vulnerable to several HIV risk factors, such as transactional sex, HIV-positive sexual partners, and injection drug use. There is an urgent need for programs that integrate drug, sexual health, and mental health services, with a focus on harm reduction (e.g., condoms, access to and utilization of HIV testing and PrEP services, drug knowledge, and safer drug use) tailored for MSM who practice chemsex.

16 April 2020 in International Journal of STD & AIDS
Verified
Journal Article
Closed access
PDF file
RNRong Xiang Ng
Rong Xiang Ng
TGThomas E Guadamuz
Thomas E Guadamuz
MAMohd Akbar
Mohd Akbar
AKAdeeba Kamarulzaman
Adeeba Kamarulzaman
SLSin How Lim
Sin How Lim
In Malaysia, the HIV epidemic is concentrated in a highly stigmatized population, men who have sex with men (MSM). The relationship of multiple psychosocial health conditions and HIV risks have not been investigated. This study aims to assess the association of multiple psychosocial factors with risky sexual behaviour and HIV infection among MSM. Data on demographic characteristics, psychosocial health conditions, condomless anal intercourse (CAI), HIV testing and HIV status were collected via an anonymous online survey. Multivariable logistic regression model was used to determine whether psychosocial health conditions among MSM have a syndemic association with HIV status. Between July 2017 and February 2018, 622 MSM completed the online survey. Overall, 54.3% of participants reported engaging in CAI in the past three months and 46.0% were found to have two or more psychosocial health conditions. Increasing numbers of psychosocial health conditions (1, 2, 3, 4 or more) were significantly associated with HIV infection compared to those without psychosocial health condition (odds ratio [OR] 3.39, 95% confidence interval [CI]: 1.41–8.14; OR 3.51, 95% CI: 1.43–8.61; OR 4.22, 95% CI: 1.68–10.96, and OR 7.58, 95% CI: 2.44–23.55, respectively). Comprehensive HIV prevention programs addressing mental health and substance use are needed for MSM in Malaysia.

27 September 2020 in Global Public Health
Verified
Journal Article
Closed access
SCS.C.S. Chong
S.C.S. Chong
BHB.M. Hollingshead
B.M. Hollingshead
SLSin How Lim
Sin How Lim
ABAdam Bourne
Adam Bourne
The Malaysian government has committed to 'Fast Tracking the HIV Response' to achieve UNAIDS 2030 targets to end AIDS. The epidemic is concentrated among key populations and has shifted from people who inject drugs to HIV infection through sexual transmission among men who have sex with men, sex workers and transgender people. The aim of this scoping review was to examine social and behavioural research published since 2005 that can inform understanding of each stage of the 90:90:90 treatment cascade (as proposed by UNAIDS), including HIV risk behaviours and testing practices that precede entry. We found a concentration of studies related to predictors or correlates of HIV infections (mostly among men who have sex with men) and a shortfall in literature pertaining to sex workers or transgender people. While several studies examined factors associated with HIV testing, only one examined uptake of antiretroviral therapy and two explored issues of treatment adherence. No study examined broader care and support of people living with HIV. To scale-up effective programmes and apprise investment to achieve the ambitious targets set-out in the Malaysian National HIV/AIDS Strategic Plan, a combination of comprehensive strategic information and evidence generated through primary research is critical.