Survival Analysis of Antiretroviral Treatment for PLWH in Sichuan Province, China, 2003-2022: A Large Retrospective Cohort Study.

Background: Sichuan Province was severely affected by the HIV, and there was a scarcity of data regarding the survival time and influencing factors for People Living with HIV/AIDS (PLWH) in Sichuan Province who have received Antiretroviral Therapy (ART). Therefore, it is necessary to conduct a survival analysis for PLWH receiving ART.

Methods: A retrospective cohort study was conducted on PLWH who had received ART≥6 months in Sichuan Province from January 1, 2003, to December 31, 2022.

The brother's penalty: Boy preference and girls' health in rural China.

This paper identifies the health penalty experienced by girls due to having a brother from endogenous sibling gender composition. We propose a girls-to-girls comparison strategy and rule out the confounding effect from the sibship size, birth interval, and birth order. Employing an instrumental variable approach and data from the Chinese Family Panel Studies, we find that girls with a brother are demonstrably shorter and report poorer health.

Using a Geosocial Networking App to Investigate New HIV Infections and Related Risk Factors Among Student and Nonstudent Men Who Have Sex With Men in Chengdu, China: Open Cohort Study.

Background: In China, condomless sex among men who have sex with men (MSM) is the primary route of HIV infection in young people. Chengdu is a hotspot for reported HIV cases among young people nationwide. Extensive use of geosocial networking (GSN) smartphone apps has dramatically changed the pattern of sexual behavior among young MSM (YMSM).

Member commitment in farmers' cooperatives in China: The role of contractual and relational governance mechanisms.

Farmers' cooperatives play a critical role in social, economic, and environmental sustainability in terms of poverty reduction, food quality and safety, farm sustainability, and members' well-being. However, they are generally faced with low or declining member commitment, which restricts their performance and sustainable development. This study aims to investigate the effect of cooperative governance on member commitment as well as the moderating effects of cooperative types through an empirical exploratory study applying a random sampling survey.

HIV/AIDS Knowledge, Depression, and HIV-Related Stigma Among Elderly Men in Rural China: A Hierarchical Regression Analysis.

This study explored the current status and influencing factors of HIV-related stigma among elderly men (≥50 years old) in rural Chengdu, China. A structured face-to-face interview survey was conducted among 286 elderly males from three towns in Chengdu using convenience sampling, 240 men (83.9%) who had heard of HIV/AIDS were included in the analysis.

Molecular Transmission Network of Newly Reported HIV Infections in Pengzhou, Sichuan Province: A Study Based on Genomics and Spatial Epidemiology.

Objective: The objective of this study was to understand the molecular transmission characteristics of newly reported HIV infections in the city of Pengzhou, Sichuan Province, to analyze the risk factors of transmission network and spatial clustering and the transmission characteristics, and to provide a scientific basis for precision prevention and intervention.

Methods: Anticoagulated whole blood was collected from newly reported HIV infections in Pengzhou from March 2019 to August 2021. After the plasma was isolated, the HIV-1 pol gene was amplified and sequenced by reverse transcriptase polymerase chain reaction (PCR).

HIV-Related Knowledge, Attitude, and Practices Research Among College Students - Six Chinese Cities, 2021.

What Is Already Known About This Topic?: The number of newly diagnosed human immunodeficiency virus (HIV) cases among Chinese youth 15-24 years of age shows an upward trend between 2010 and 2019.

What Is Added By This Report?: This survey is on a larger scale as compared to previous studies. It shows inadequate HIV knowledge - especially on HIV treatment, self-testing, and post-exposure prophylaxis - among college students.

User Preferences for an mHealth Approach to Support HIV Self-Testing and Linkage to HIV Prevention or Care Services for MSM in China.

This research qualitatively explored user preferences for an app-based mHealth approach to support HIV self-testing and linkage to HIV prevention or care services developed for men who have sex with men (MSM) in China. We conducted 12 online focus group discussions with MSM participants (N = 48) about their preferences for using an app to meet their HIV self-testing and service linkage needs. Data were examined using thematic analysis.

Impact of immediate initiation of antiretroviral therapy among men who have sex with men infected with HIV in Chengdu, southwest China: trends analysis, 2008-2018.

Background: Given the rampant HIV epidemic among men who have sex with men (MSM) in Chengdu, southwest China, Treat All policy, defined as immediate antiretroviral therapy (ART) initiation after HIV diagnosis, was implemented since 2014. Real-world research evaluating impacts of immediate ART on HIV epidemics is needed to optimize policy-making as national and international guidelines have been lowering ART eligibility threshold. The purpose of this study is to: assess temporal trends of the HIV epidemic and impacts of Treat All policy among MSM; and lay foundation for HIV-related policy evaluation using longitudinal routine data from health information systems.

Avian Influenza-Factors Affecting Consumers' Purchase Intentions toward Poultry Products.

Recently, continuing outbreaks of avian influenza in China have not only caused great loss to the agricultural sector but also brought fear and distrust to consumers, seriously undermining consumer confidence in chicken products. We investigated consumers' purchase intentions during avian influenza outbreaks by examining a regionally representative sample of 330 consumers in Guangzhou. With respect to 7 kinds of attributes, the ordered logit analysis indicated that possible health threat and uncertainty of the origin of poultry products may cause concern among consumers and cause them to avoid purchasing chicken products.

Robust outcome weighted learning for optimal individualized treatment rules.

Personalized medicine has received increasing attentions among scientific communities in recent years. Because patients often have heterogenous responses to treatments, discovering individualized treatment rules (ITR) is an important component of precision medicine. To that end, one needs to develop a proper decision rule using patient-specific characteristics to maximize the expected clinical outcome, i.

Childhood obesity in China: Does grandparents' coresidence matter?

Childhood obesity in China has been increasingly cited as a major public health issue in recent decades. The effect of grandparents on grandchildren's weight outcome is under-analyzed. Using data from the China Health and Nutrition Survey, we examine the effect of grandparents' coresidence on childhood weight outcome with a sample of 2-13-year-old children in China.

Consistently high HIV prevalence among men who have sex with men in Chengdu city from 2009 to 2014.

To describe the trends of the HIV epidemic among men who have sex with men (MSM) in Chengdu city, China, consecutive cross-sectional surveys were conducted by the Chengdu Center for Disease Control and Prevention. These surveys were carried out between 2009 and 2014 according to the protocol of the national HIV Sentinel Surveillance System. For the 2422 MSM who participated in the survey, the overall HIV prevalence was 15.

Utility-based Weighted Multicategory Robust Support Vector Machines.

The Support Vector Machines (SVM) has been an important classification technique in both machine learning and statistics communities. The robust SVM is an improved version of the SVM so that the resulting classifier can be less sensitive to outliers. In many practical problems, it may be advantageous to use different weights for different types of misclassification.