Article
Public, Environmental & Occupational Health
Emeli J. Anderson, Kevin M. Weiss, Martina M. Morris, Travis H. Sanchez, Pragati Prasad, Samuel M. Jenness
Summary: This study used empirical data from San Francisco and Atlanta to estimate the generative parameters of the forward-reachable path (FRP) and compared them to the HIV/sexually transmitted infection epidemics in each city. Results showed that the overall mean and median FRP were higher in San Francisco than in Atlanta, with the youngest age group having the highest mean path in the casual partnership network despite having the lowest mean momentary degree and past-year partner counts. The FRP by age group revealed the additional utility of the measure beyond the temporal and cross-sectional network connectivity measures.
Article
Infectious Diseases
Yining Bao, Nicholas A. Medland, Christopher K. Fairley, Jinrong Wu, Xianwen Shang, Eric P. F. Chow, Xianglong Xu, Zongyuan Ge, Xun Zhuang, Lei Zhang
Summary: Machine learning models were developed and evaluated for predicting HIV and STIs diagnosis among Australian men who have sex with men. Gradient boosting machine had the highest accuracy, followed by extreme gradient boosting, random forest, deep learning, and multivariable logistic regression. The models identified key predictors for HIV/STIs diagnosis, showcasing the advantages of machine learning over traditional regression models.
JOURNAL OF INFECTION
(2021)
Article
Psychology, Clinical
Chin Pok Chan, Tsz Ho Kwan, Ngai Sze Wong, Chin Man Poon, Shui Shan Lee
Summary: With undetectable equals untransmittable, the risk of STI transmission has increased in people living with HIV due to continued engagement in condomless sex. This study analyzed the relationship between STI diagnosis and sex partner-seeking behavior over time in a cohort of MSM attending an HIV specialist clinic in Hong Kong. The results showed a decrease in STI incidence but a rebound in the use of mobile applications for seeking partners, which was associated with higher STI co-infection rates. Risk factors, such as chemsex and casual sex, were shared between frequent partner-seeking behavior and STI diagnosis. The study highlights the importance of integrating STI/behavioral surveillance into HIV care.
ARCHIVES OF SEXUAL BEHAVIOR
(2023)
Review
Public, Environmental & Occupational Health
G. J. Melendez-Torres, Rebecca Meiksin, T. Charles Witzel, Peter Weatherburn, Jane Falconer, Chris Bonell
Summary: This study reviewed the effectiveness of eHealth interventions for men who have sex with men. The findings suggest that early interventions have uncertain effects, but midterm interventions significantly reduce sexual risk behavior. However, the certainty of the studies is low.
JMIR PUBLIC HEALTH AND SURVEILLANCE
(2022)
Article
Public, Environmental & Occupational Health
Adam Dale Newman Williams, Fiona Wood, David Gillespie, Zoe Couzens, Kathryn Hughes, Kerenza Hood
Summary: MSM in Wales have positive views and good knowledge of PrEP and bacterial STIs. Despite concerns about reduced condom use, condom use behaviors remain stable in relation to PrEP initiation. PrEP use is primarily driven by HIV concern and shows minimal association with awareness of resistant STIs.
Article
Health Care Sciences & Services
Xianglong Xu, Zhen Yu, Zongyuan Ge, Eric P. F. Chow, Yining Bao, Jason J. Ong, Wei Li, Jinrong Wu, Christopher K. Fairley, Lei Zhang
Summary: This study aimed to develop an HIV and STI risk prediction tool using machine learning algorithms. Clinic consultations and external validation data sets were used to develop and validate 34 machine learning models. The results showed that the machine learning-based risk prediction tool performed well and accurately predicted the risk of HIV and STIs.
JOURNAL OF MEDICAL INTERNET RESEARCH
(2022)
Article
Public, Environmental & Occupational Health
Changchang Li, Weiming Tang, Hung Chak Ho, Peizhen Zhao, Lei Chen, Yajie Wang, Mingzhou Xiong, Bin Yang, Heping Zheng, Cheng Wang
Summary: The use of online platforms to seek sexual partners and engage in risky sexual activities is not uncommon among heterosexual men in China. Future prevention strategies should focus on heterosexual men who seek sex online to reduce the incidence of sexually transmitted infections.
ARCHIVES OF PUBLIC HEALTH
(2022)
Article
Public, Environmental & Occupational Health
Zhihui Guo, Anping Feng, Yiguo Zhou, Yanxiao Gao, Yinghui Sun, Yuanyi Chen, Xinyi Zhou, Huachun Zou
Summary: The study aimed to compare sexual behaviors between app-using MSM and non-app-using MSM, and evaluate the association between app use and sexually transmitted infections (STIs). The findings showed that app users were more likely to engage in high-risk sexual behaviors, but the prevalence of HIV and other STIs were similar to non-app users.
FRONTIERS IN PUBLIC HEALTH
(2023)
Article
Psychology, Clinical
Jaimie L. Engel, Christopher K. Fairley, Kate E. Greaves, Lenka A. Vodstrcil, Jason J. Ong, Catriona S. Bradshaw, Marcus Y. Chen, Tiffany R. Phillips, Eric P. F. Chow
Summary: Despite limited STI surveillance data for women who have sex with women, this study compared sexual practices and STI positivity among women who have sex with men only, women who have sex with women only, and women who have sex with men and women. The study found differences in sexual practices and STI positivity according to the sex of women's partners, and these differences are important to consider for future STI trends.
ARCHIVES OF SEXUAL BEHAVIOR
(2022)
Article
Psychology, Clinical
Ei T. Aung, Christopher K. Fairley, Eric P. F. Chow, David Lee, Kate Maddaford, Rebecca Wigan, Daniel Read, Umar Taj, Ivo Vlaev, Jason J. Ong
Summary: Behavioral economics and nudging can improve individual choices in healthcare settings. This study examined the preferred reminder method and message framing for regular HIV and STI testing among men who have sex with men. Findings suggest that SMS reminders were preferred, and neutral, personalized, and positive-framed messages were favored over negative or social norm messages.
ARCHIVES OF SEXUAL BEHAVIOR
(2022)
Article
Multidisciplinary Sciences
Ulrich Marcus, Massimo Mirandola, Susanne B. Schink, Lorenzo Gios, Axel J. Schmidt
Summary: Between 2010 and 2017, overall diagnoses with gonorrhoea/chlamydia and syphilis increased by 76% and 83% across countries. The increase was more pronounced for asymptomatic infections. The proportion of respondents screened and the frequency of screening grew considerably. Condomless anal intercourse with the last non-steady partner rose by 62%, and self-reported partner numbers grew.
Article
Public, Environmental & Occupational Health
Ulrich Marcus, Maria Veras, Jordi Casabona, Carlos F. Caceres, Nathan Lachowsky, Susanne B. Schink, Axel J. Schmidt
Summary: Men who have sex with men (MSM) are more vulnerable to sexually transmitted infections (STIs) than heterosexual men. However, there is a lack of comparability in STI diagnoses across countries due to differences in identification of MSM, diagnostic standards and methods, and screening guidelines for asymptomatic infections.
Article
Medicine, General & Internal
Jason M. Nagata, Karly Hampshire, Adrienne Epstein, Feng Lin, Jennifer Zakaras, Pamela Murnane, Edwin D. Charlebois, Alexander C. Tsai, Denis Nash, Sheri D. Weiser
Summary: This study investigated the association between heavy rainfall and HIV burden in sub-Saharan Africa over a 12-year period. The findings showed that heavy rainfall was associated with a higher risk of HIV infection, sexually transmitted infections, and an increased number of sexual partners. The study suggests that heavy rainfall may contribute to an increase in sexual transmission of HIV and exacerbate food insecurity and damage to public health infrastructure.
Article
Endocrinology & Metabolism
Shun Bai, Yuan Li, Yangyang Wan, Tonghang Guo, Qi Jin, Ran Liu, Wenjuan Tang, Meiying Sang, Yuanyuan Tao, Baoguo Xie, Yun Zhao, Wei Li, Xiangdong Xu, Qiuling Yue, Xuechun Hu, Bo Xu
Summary: Leukocytospermia was associated with a reduction in semen quality, but was not significantly associated with sexually transmitted infections. The study found no significant difference in semen parameters between LCS with and without STIs.
REPRODUCTIVE BIOLOGY AND ENDOCRINOLOGY
(2021)
Article
Microbiology
Ivana Luz, Eda Vinhaes, Isabela Cruz, Ana Gabriela Travassos, Estela Luz, Eduardo Martins Netto, Carlos Brites, Lawrence S. Young
Summary: A study in Brazil found that men who have sex with men (MSM) and transgender women (TGW) are highly vulnerable to anal sexually transmitted infections (STIs). The study evaluated 141 participants and found that 79.4% of them had at least one STI, with HIV infection being particularly common among MSM and bisexual men. Lower income, multiple sexual partners, and use of sexualized drugs were identified as predictors of higher STI risk.
Article
Microbiology
K. Brooks, A. DeLong, M. Balamane, L. Schreier, M. Orido, M. Chepkenja, E. Kemboi, M. D'Antuono, P. A. Chan, W. Emonyi, L. Diero, M. Coetzer, R. Kantor
JOURNAL OF CLINICAL MICROBIOLOGY
(2016)
Article
Public, Environmental & Occupational Health
Lauren Brinkley-Rubinstein, Sharon Parker, Annie Gjelsvik, Leandro Mena, Philip A. Chan, Julia Harvey, Brandon Marshall, Curt G. Beckwith, Jennifer Rose, Reginald Riggins, Trisha Arnold, Amy Nunn
Article
Multidisciplinary Sciences
Madeline C. Montgomery, Catherine E. Oldenburg, Amy S. Nunn, Leandro Mena, Peter Anderson, Teri Liegler, Kenneth H. Mayer, Rupa Patel, Alexi Almonte, Philip A. Chan
Article
Public, Environmental & Occupational Health
Amy Nunn, Caitlin Towey, Philip A. Chan, Sharon Parker, Emily Nichols, Patrick Oleskey, Annajane Yolken, Julia Harvey, Geetanjoli Banerjee, Thomas Stopka, Stacey Trooskin
PUBLIC HEALTH REPORTS
(2016)
Article
Public, Environmental & Occupational Health
Philip A. Chan, Caitlin Towey, Joanna Poceta, Jennifer Rose, Thomas Bertrand, Rami Kantor, Julia Harvey, E. Karina Santamaria, Nicole Alexander-Scott, Amy Nunn
PUBLIC HEALTH REPORTS
(2016)
Article
Public, Environmental & Occupational Health
Catherine E. Oldenburg, Bao Le, Hoang Thi Huyen, Dinh Duc Thien, Nguyen Hoang Quan, Katie B. Biello, Amy Nunn, Philip A. Chan, Kenneth H. Mayer, Matthew J. Mimiaga, Donn Colby
Article
Infectious Diseases
Philip A. Chan, Tiffany R. Glynn, Catherine E. Oldenburg, Madeline C. Montgomery, Ashley E. Robinette, Alexi Almonte, Julia Raifman, Leandro Mena, Rupa Patel, Kenneth H. Mayer, Laura S. Beauchamps, Amy S. Nunn
SEXUALLY TRANSMITTED DISEASES
(2016)
Article
Immunology
Philip A. Chan, Leandro Mena, Rupa Patel, Catherine E. Oldenburg, Laura Beauchamps, Amaya G. Perez-Brumer, Sharon Parker, Kenneth H. Mayer, Matthew J. Mimiaga, Amy Nunn
JOURNAL OF THE INTERNATIONAL AIDS SOCIETY
(2016)
Article
Nursing
Rupa R. Patel, Laura C. Harrison, Viraj V. Patel, Philip A. Chan, Kenneth H. Mayer, Hilary E. Reno, Tyrell Manning
JANAC-JOURNAL OF THE ASSOCIATION OF NURSES IN AIDS CARE
(2017)
Article
Multidisciplinary Sciences
Trisha Arnold, Lauren Brinkley-Rubinstein, Philip A. Chan, Amaya Perez-Brumer, Estefany S. Bologna, Laura Beauchamps, Kendra Johnson, Leandro Mena, Amy Nunn
Article
Multidisciplinary Sciences
Ian Ross, Carlos Mejia, Johanna Melendez, Philip A. Chan, Amy C. Nunn, William Powderly, Katherine Goodenberger, Jingxia Liu, Kenneth H. Mayer, Rupa R. Patel
Article
Immunology
Amy S. Nunn, Lauren Brinkley-Rubinstein, Catherine E. Oldenburg, Kenneth H. Mayer, Matthew Mimiaga, Rupa Patel, Philip A. Chan
Article
Psychology, Clinical
Roland C. Merchant, David Corner, Eduardo Garza, Wentao Guan, Kenneth H. Mayer, Larry Brown, Philip A. Chan
JOURNAL OF GAY & LESBIAN MENTAL HEALTH
(2016)
Article
Public, Environmental & Occupational Health
Brandon D. L. Marshall, Amaya G. Perez-Brumer, Sarah MacCarthy, Leandro Mena, Philip A. Chan, Caitlin Towey, Nancy Barnett, Sharon Parker, Arti Barnes, Lauren Brinkley-Rubinstein, Jennifer S. Rose, Amy S. Nunn
Article
Public, Environmental & Occupational Health
Catherine E. Oldenburg, Amy S. Nunn, Madeline Montgomery, Alexi Almonte, Leandro Mena, Rupa R. Patel, Kenneth H. Mayer, Philip A. Chan