Chengliang Chai
Biographic Data
| ID | 7035040 |
|---|---|
| NAME | Chengliang Chai |
| GIVEN NAMES | Chengliang |
| FAMILY NAME | Chai |
| SIGNATURE | CHAI C |
| AFFILIATIONS | Zhejiang Center for Disease Control and Prevention |
| ORCID | 0000-0002-7238-992X |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 12 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2018 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
A comparative study of sociodemographic characteristics, health cognition, and risky sexual behaviors between MSMO and MSMW in Zhejiang Province, Eastern China
Background: Men who have sex with men (MSM) are a high-risk group for HIV, with marked heterogeneity in sexual behaviors. However, MSM are often treated as a homogeneous population, limiting the effectiveness of targeted HIV prevention strategies. This study aimed to compare sociodemographic characteristics, health cognition, and sexual risk behaviors between men who have sex with men only (MSMO) and men who have sex with men and women (MSMW) in …
HIV, syphilis, and gonorrhea co-infection and associated factors among adolescents and young adults aged 15–24 years in Ningbo, China, 2005–2024
Background Sexually transmitted infections (STIs), including HIV, syphilis, and gonorrhea, have exhibited a rising trend among adolescents and young adults aged 15–24 years in China, presenting a major public health concern. This age group faces heightened risks due to behaviors such as unprotected sex, having multiple partners, and engaging in online dating, as well as limited access to healthcare services. Monitoring long-term trends and factor…
HIV transmission risk among people living with HIV in Zhejiang Province, China: Data from a large cross-sectional study, 2022
Background: Effective management of people living with HIV (PLWH) can block the sexual transmission as there is a zero risk of sexual transmission (by U=U campaign); however, few studies have aimed to addressed the risk of transmission among PLWH in China. Method: We conducted a cross-sectional survey among PLWH in 2022. PLWH were categorized into four HIV transmission risk groups: on antiretroviral therapy (ART) and HIV viral load (VL) < 50 copi…
Status and comparison of HIV Knowledge, HIV Testing and other healthy behavior between men who have sex with men only (MSMO) and men who have sex with men and women (MSMW): A cross-sectional study in …
MSMW showed significant differences with MSMO in HIV knowledge and HIV related risky reduction behaviors. It is necessary to enhance awareness and skills on HIV self-testing, PEP, and PrEP among MSM. Encouraging HIV knowledge education and HIV testing service are important for MSMW. PEP and PrEP might be enhanced among MSMO for reducing the risk of HIV transmission
Low pre-exposure prophylaxis (PrEP) uptake and high prevalence of sexually transmitted infections among men who have sex with men in Zhejiang Province, China: A large cross-sectional survey
The prevalence of PrEP uptake among MSM in Zhejiang Province remains relatively low. Factors including lower educational level, freelance employment, multiple sexual partnerships, occasional condom use, and rush popper use were correlated with uptake. Importantly, individuals with a history of STIs were more likely to use PrEP, underscoring the need to integrate STI screening into routine PrEP services. These findings provide a critical evidence …
Current syphilis infection in virally suppressed people living with HIV: A cross-sectional study in eastern China
Background: Antiretroviral therapy (ART) has been shown to reduce human immunodeficiency virus (HIV) viral replication and ultimately achieve viral suppression and eliminate HIV transmission. However, little is known about the impact of viral suppression on high-risk behaviors and sexually transmitted infections (STIs). Objective: This study aimed to assess the rates of current syphilis infection in virally suppressed people living with HIV (PLWH…
An enhanced Elo-based student model for polychotomously scored items in adaptive educational system
The adaptive learning environment provides learning support that suits individual characteristics of students, and the student model of the adaptive learning environment is the key element to promote individualized learning. This paper provides a systematic overview of the existing student models, consequently showing that the Elo rating system has greater potential as compared to the other models regarding application in the online learning envi…
Development and validation of a risk score for predicting inconsistent condom use with women among men who have sex with men and women
We developed and validated a predictive risk score for ICUF among MSMW; four factors were identified, of which inconsistent condom use with men was the most important. Risk reduction intervention programs should focus on MSM who report inconsistent condom use with males, never heard PEP, having multiple partners and living in local less than 6 months
Application of machine learning algorithms in predicting HIV infection among men who have sex with men: Model development and validation
Background: Continuously growing of HIV incidence among men who have sex with men (MSM), as well as the low rate of HIV testing of MSM in China, demonstrates a need for innovative strategies to improve the implementation of HIV prevention. The use of machine learning algorithms is an increasing tendency in disease diagnosis prediction. We aimed to develop and validate machine learning models in predicting HIV infection among MSM that can identify…
Development and Validation of a Risk Prediction Tool to Identify People at Greater Risk of Having Hepatitis C among Drug Users
Background: People who use drugs (PWUD) are among those with the highest risk for hepatitis C virus (HCV) infection. Highly effective direct-acting antiviral agents offer an opportunity to eliminate HCV. A simple tool for the prediction of HCV infection risk in PWUD is urgently needed. This study aimed to develop and validate a risk prediction tool to identify people at greater risk of having hepatitis C among PWUD that is applicable in resource-…
Public Awareness of Tuberculosis in Southeast China: A Population-Based Study
Few provinces in China have recently conducted population-based surveys on tuberculosis (TB) awareness at the provincial level. Hence, we conducted a population-based, cross-sectional study to evaluate the level of awareness of TB knowledge among residents of Zhejiang Province, China from October 2018 to December 2018. A total of 7174 individuals were randomly selected to participate in this survey. The rate of awareness of key information on TB …
Tuberculosis among Full-Time Teachers in Southeast China, 2005–2016
Objective : To explore the incidence rate and characteristics of tuberculosis (TB) among full-time teachers from 2005 to 2016 in southeast China and to provide a basis for TB prevention and control measures in schools. Methods : Information about full-time teachers with TB was obtained from the National Tuberculosis Information Management System (NTIMS). Population data were collected from the Zhejiang Statistical Yearbook and the Zhejiang Educat…
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Tuberculosis among Full-Time Teachers in Southeast China, 2005–2016
Objective : To explore the incidence rate and characteristics of tuberculosis (TB) among full-time teachers from 2005 to 2016 in southeast China and to provide a basis for TB prevention and control measures in schools. Methods : Information about full-time teachers with TB was obtained from the National Tuberculosis Information Management System (NTIMS). Population data were collected from the Zhejiang Statistical Yearbook and the Zhejiang Educat…
Public Awareness of Tuberculosis in Southeast China: A Population-Based Study
Few provinces in China have recently conducted population-based surveys on tuberculosis (TB) awareness at the provincial level. Hence, we conducted a population-based, cross-sectional study to evaluate the level of awareness of TB knowledge among residents of Zhejiang Province, China from October 2018 to December 2018. A total of 7174 individuals were randomly selected to participate in this survey. The rate of awareness of key information on TB …
Application of machine learning algorithms in predicting HIV infection among men who have sex with men: Model development and validation
Background: Continuously growing of HIV incidence among men who have sex with men (MSM), as well as the low rate of HIV testing of MSM in China, demonstrates a need for innovative strategies to improve the implementation of HIV prevention. The use of machine learning algorithms is an increasing tendency in disease diagnosis prediction. We aimed to develop and validate machine learning models in predicting HIV infection among MSM that can identify…
Development and Validation of a Risk Prediction Tool to Identify People at Greater Risk of Having Hepatitis C among Drug Users
Background: People who use drugs (PWUD) are among those with the highest risk for hepatitis C virus (HCV) infection. Highly effective direct-acting antiviral agents offer an opportunity to eliminate HCV. A simple tool for the prediction of HCV infection risk in PWUD is urgently needed. This study aimed to develop and validate a risk prediction tool to identify people at greater risk of having hepatitis C among PWUD that is applicable in resource-…
An enhanced Elo-based student model for polychotomously scored items in adaptive educational system
The adaptive learning environment provides learning support that suits individual characteristics of students, and the student model of the adaptive learning environment is the key element to promote individualized learning. This paper provides a systematic overview of the existing student models, consequently showing that the Elo rating system has greater potential as compared to the other models regarding application in the online learning envi…
Development and validation of a risk score for predicting inconsistent condom use with women among men who have sex with men and women
We developed and validated a predictive risk score for ICUF among MSMW; four factors were identified, of which inconsistent condom use with men was the most important. Risk reduction intervention programs should focus on MSM who report inconsistent condom use with males, never heard PEP, having multiple partners and living in local less than 6 months
Current syphilis infection in virally suppressed people living with HIV: A cross-sectional study in eastern China
Background: Antiretroviral therapy (ART) has been shown to reduce human immunodeficiency virus (HIV) viral replication and ultimately achieve viral suppression and eliminate HIV transmission. However, little is known about the impact of viral suppression on high-risk behaviors and sexually transmitted infections (STIs). Objective: This study aimed to assess the rates of current syphilis infection in virally suppressed people living with HIV (PLWH…
HIV transmission risk among people living with HIV in Zhejiang Province, China: Data from a large cross-sectional study, 2022
Background: Effective management of people living with HIV (PLWH) can block the sexual transmission as there is a zero risk of sexual transmission (by U=U campaign); however, few studies have aimed to addressed the risk of transmission among PLWH in China. Method: We conducted a cross-sectional survey among PLWH in 2022. PLWH were categorized into four HIV transmission risk groups: on antiretroviral therapy (ART) and HIV viral load (VL) < 50 copi…
Status and comparison of HIV Knowledge, HIV Testing and other healthy behavior between men who have sex with men only (MSMO) and men who have sex with men and women (MSMW): A cross-sectional study in …
MSMW showed significant differences with MSMO in HIV knowledge and HIV related risky reduction behaviors. It is necessary to enhance awareness and skills on HIV self-testing, PEP, and PrEP among MSM. Encouraging HIV knowledge education and HIV testing service are important for MSMW. PEP and PrEP might be enhanced among MSMO for reducing the risk of HIV transmission
Low pre-exposure prophylaxis (PrEP) uptake and high prevalence of sexually transmitted infections among men who have sex with men in Zhejiang Province, China: A large cross-sectional survey
The prevalence of PrEP uptake among MSM in Zhejiang Province remains relatively low. Factors including lower educational level, freelance employment, multiple sexual partnerships, occasional condom use, and rush popper use were correlated with uptake. Importantly, individuals with a history of STIs were more likely to use PrEP, underscoring the need to integrate STI screening into routine PrEP services. These findings provide a critical evidence …
A comparative study of sociodemographic characteristics, health cognition, and risky sexual behaviors between MSMO and MSMW in Zhejiang Province, Eastern China
Background: Men who have sex with men (MSM) are a high-risk group for HIV, with marked heterogeneity in sexual behaviors. However, MSM are often treated as a homogeneous population, limiting the effectiveness of targeted HIV prevention strategies. This study aimed to compare sociodemographic characteristics, health cognition, and sexual risk behaviors between men who have sex with men only (MSMO) and men who have sex with men and women (MSMW) in …
HIV, syphilis, and gonorrhea co-infection and associated factors among adolescents and young adults aged 15–24 years in Ningbo, China, 2005–2024
Background Sexually transmitted infections (STIs), including HIV, syphilis, and gonorrhea, have exhibited a rising trend among adolescents and young adults aged 15–24 years in China, presenting a major public health concern. This age group faces heightened risks due to behaviors such as unprotected sex, having multiple partners, and engaging in online dating, as well as limited access to healthcare services. Monitoring long-term trends and factor…
Medicine (8 works) · HIV/AIDS Research and Interventions (7 works) · Environmental health (6 works) · China (5 works) · Men who have sex with men (5 works) · Adolescent Sexual and Reproductive Health (4 works) · Computer Science (4 works) · Cross-sectional study (4 works) · Epidemiology (4 works) · Geography (4 works)