Predicting the HIV/AIDS epidemic and measuring the effect of AIDS Conquering Project in Guangxi Zhuang Autonomous Region

Prevalence, trends, and correlates of HIV, syphilis, and HCV infections among male attendees at STD clinics in Southwest China: a 13-year cross-sectional study (2010-2022)

BACKGROUND

Sexually transmitted infections (STIs) impose a substantial health burden and pose a significant threat to human health. However, data regarding long-term epidemiology patterns of STIs among high-risk groups are scarce. This study aimed to evaluate the prevalence, trends, and correlates of HIV, syphilis, and HCV among male attendees at sexually transmitted disease (STD) clinics in Southwest China.

METHODS

Serial cross-sectional surveys were performed annually among male STD clinic attendees in Southwest China from 2010 to 2022. Blood specimens were collected to test HIV, syphilis, and HCV infections. Mann-Kendall trend test was used to assess the trends of HIV, syphilis, and HCV prevalence. Rare even logistic regression model (relogit) was used to identify correlates of HIV, syphilis, and HCV infections.

RESULTS

This study included a total of 23,964 male attendees at STD clinics. The prevalence of HIV, syphilis, and HCV among participants was 0.98%, 2.16%, and 0.61%, respectively. While the prevalence of syphilis and HCV decreased from 3.64% to 1.81% in 2010 to 1.05% and 0.38% in 2022, the HIV prevalence did not show a downward trend. Relogit analysis revealed that participants with a history of STD had significantly increased risks of HIV (aOR = 1.90, 95%CI: 1.14-3.15) and HCV (aOR = 4.91, 95%CI: 3.22-7.49) infections. Participants who had ever engaged in homosexual behavior had significantly increased risks of HIV (aOR = 14.66, 95%CI: 5.49-39.14) and syphilis (aOR = 3.95, 95%CI:1.41-13.71) infections. Age also played a role, with those aged 50 years and above having a higher likelihood of HIV infection (aOR = 2.55, 95%CI: 1.91-3.39), while those under 50 years were more likely to be infected with HCV (aOR = 1.94, 95%CI: 1.19-3.16). Moreover, individuals of Han ethnicity were more likely to be infected with syphilis (aOR = 2.12, 95%CI: 1.75-2.57) and HCV (aOR = 1.65, 95%CI: 1.16-2.33). Being married or cohabiting increased the likelihood of syphilis infection (aOR = 1.40, 95%CI: 1.09-1.80), and a history of intravenous drug use (IDU) significantly increased the risk of HCV infection (aOR = 10.97, 95%CI: 5.21-23.12).

CONCLUSIONS

This study found a low prevalence of HIV, syphilis, and HCV among male attendees at STD clinics. Despite the declining prevalence of syphilis and HCV, HIV prevalence did not show a downward trend. This underscores the crucial need for continued and targeted prevention efforts, especially promoting STIs testing for men who have sex with men (MSM) and individuals with a history of intravenous drug use (IDU).

Multi-state Markov model for time to treatment changes for HIV/AIDS patients: a retrospective cohort national datasets, Ethiopia

BACKGROUND

Virological failure, drug resistance, toxicities, and other issues make it difficult for ART to maintain long-term sustainability. These issues would force a modification in the patient's treatment plan. The aim of this research was to determine whether first-line antiretroviral therapy is durable and to identify the factors that lead to patients on HAART changing their first highly active antiretroviral therapy regimen.

METHODS

A retrospective cohort study was conducted from October, 2019-March, 2020 across all regional states including Addis Ababa and Dire Dawa administrative cities. The target population is from all health facilities that have been providing ART service for at least the past 6 months as of October 2019. Multi-stage clustered sampling method was used to select study facilities and participants. Simple random selected ART medical records of patients ever enrolled in ART treatment services. We adopted a multi-state survival modelling (msm) approach assuming each treatment regimen as state. We estimate the transition probability of patients to move from one regimen to another for time to treatment change/switch. We estimated the transition probability, prediction probabilities and length of stay and factor associated with treatment modification of patients to move from one regimen to another.

RESULTS

Any of the six therapy combinations (14.4%) altered their treatment at least once during the follow-up period for a variety of reasons. Of the patients, 4,834 (13.26%) changed their treatments just once, while 371 (1.1%) changed it more than once. For 38.6% of the time, a treatment change was undertaken due to toxicity, another infection or comorbidity, or another factor, followed by New drugs were then made accessible and other factors 18.3% of the time, a drug was out of supply; 2.6% of those instances involved pregnancy; and 43.1% involved something else. Highly active anti-retroviral therapy (HAART) combinations TDF + 3TC + NVP, d4T + 3TC + NVP, and TDF + 3TC + EFV were high to treatment alterations in all reasons of treatment modifications, with 29.74%, 26.52%, and 19.52% treatment changes, respectively. Early treatment modification or regime change is one of the treatment combinations that include the d4T medication that creates major concern. The likelihood of staying and moving at the the start of s = 0 and 30-month transitions increased, but the likelihood of staying were declined. For this cohort dataset, the presence of opportunistic disease, low body weight, baseline CD4 count, and baseline TB positive were risk factors for therapy adjustment.

CONCLUSION

Given that the current study took into account a national dataset, it provides a solid basis for ART drug status and management. The patient had a higher likelihood of adjusting their treatment at some point during the follow-up period due to drug toxicity, comorbidity, drug not being available, and other factors, according to the prediction probability once more. Baseline TB positivity, low CD4 count, opportunistic disease, and low body weight were risk factors for therapy adjustment in this cohort dataset.

Economic Evaluation of the Comprehensive AIDS Prevention and Control Program - Tianjin Municipality, China, 2011-2022

What is already known about this topic?

Acquired immunodeficiency syndrome (AIDS) represents a significant public health challenge globally, not only inflicting harm on the health of individuals but also placing a considerable economic strain on society.

What is added by this report?

This study represents the inaugural report on the potential reduction in economic burden attributable to human immunodeficiency virus (HIV) prevention strategies in Tianjin. Between 2011 and 2022, it is estimated that effective measures could prevent 2,965 new HIV infections and avert 658 deaths, resulting in an economic benefit of approximately 14.437 billion Chinese Yuan.

What are the implications for public health practice?

The findings of this study offer valuable evidence to inform the development of localized HIV prevention and control strategies, as well as to guide public health policymaking.