Xiangyu Yan
Biographic Data
| ID | 7801619 |
|---|---|
| NAME | Xiangyu Yan |
| GIVEN NAMES | Xiangyu |
| FAMILY NAME | Yan |
| SIGNATURE | YAN X |
| AFFILIATIONS | Peking University |
| ORCID | 0000-0002-1496-0358 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2020 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
Large-scale school scoliosis screening in a multi-ethnic, high-altitude region of southwestern China
Objectives To establish the first large-scale epidemiological profile of scoliosis among children and adolescents in Yunnan, China, and identify key demographic, anthropometric, and geographic determinants in this multi-ethnic, high-altitude region. Study design A population-based cross-sectional screening survey using multistage stratified cluster sampling. Methods A population-based cross-sectional survey of 69,811 students aged 6–18 was conduc…
Temporal trends in chronic diseases among offshore oil workers and the interaction effect of age with body mass index
Objective To analyze trends in hypertension, diabetes, and dyslipidemia prevalence among Chinese offshore oil workers and explore the independent and interaction effects of age and BMI. Methods Using health examination data of this population (2014–2024), we calculated the crude prevalence rate (CPR, the prevalence rate without age-structure adjustment) and the age-standardized prevalence rate (ASPR, adjusted to a standard population structure). …
HIV risk and influence factors among MSM who had sought sexual partners in core venues
Background: Seeking sexual partners in men who have sex with men (MSM) venues has been regarded as a high-risk behavior for HIV among MSM. Nevertheless, with the implementation of venue-based interventions and the change in the way MSM seek sexual partners, the continued status of MSM venues as the HIV risk factor remains inconclusive. This study endeavors to delve into this ambiguity by examining the MSM sexual contact network (SCN) as a foundat…
Epidemiological and clinical characteristics of the largest Covid-19 outbreak along the China-Myanmar border in Ruili City, Yunnan Province, China
Background Imported COVID-19 patients posed great challenges to border areas' COVID-19 control. However, research was scarce to reveal epidemiological characteristics of COVID-19 in border areas. This study aimed to explore the detailed transmission chains, and reveal epidemiological and clinical characteristics of the largest COVID-19 outbreak caused by Delta variant of concern (VOC) occurred in the China-Myanmar border area. Methods During the …
A four-generation family transmission chain of Covid-19 along the China–Myanmar border in October to November 2021
Background: Foreign imported patients and within-household transmission have been the focus and difficulty of coronavirus disease 2019 (COVID-19) prevention and control, which has also posed challenges to border areas' management. However, household transmission caused by foreign imported cases has not been reported in China's border areas. This study aimed to reveal a clear family clustering transmission chain of COVID-19 caused by contact with …
Trends in Methamphetamine Use in the Mainland of China, 2006–2015
Background Methamphetamine is the most prevalent drug in the mainland of China, yet few studies on the non-medical use of methamphetamine nationwide have been conducted. This study aimed to examine the trends in the prevalence of non-medical methamphetamine use and to explore the flow pattern of internal migrant methamphetamine users in the mainland of China. Methods Data were extracted from the National Dynamic Management and Control Database fo…
The Epidemic of Sexually Transmitted Diseases Under the Influence of Covid-19 in China
Background: Prevention and control of HIV/AIDS and other sexually transmitted diseases (STDs) are major public health priorities in China, but are influenced by the COVID-19 epidemic. In this study, we aimed to quantitatively explore the impact of the COVID-19 epidemic and its control measures on five major STD epidemics in China. Methods: A monthly number of newly reported cases of HIV/AIDS, hepatitis B and C, gonorrhea, and syphilis from Januar…
Modeling the Dynamics of Drug Spreading in China
Drug abuse remains one of the major public health issues at the global level. In this article, we propose a drug epidemic model with a complete addiction-rehabilitation-recovery process, which allows the initiation of new users under the influence of drug addicts undergoing treatment and hidden drug addicts. We first conduct qualitative analyses of the dynamical behaviors of the model, including the existence and positivity of the solutions, the …
Epidemics of HIV Infection among Heavy Drug Users of Depressants Only, Stimulants Only, and Both Depressants and Stimulants in Mainland China
Background: Heavy drug users was a global consensus high-risk population of HIV infection. However, the specific impact of drug on HIV infection has not yet been established. Depressants and stimulants were most widely used drugs in mainland China, and mix use of the two drugs was also serious. We assessed the HIV infection rate and trends in heavy drug users by analyzing data from the National Dynamic Management and Control Database for Drug Use…
Protect MSM from HIV and other sexually transmitted diseases by providing mobile health services of partner notification
ClinicalTrials.gov, NCT04349748 . Registered on 16 April 2020
No prominent works on this page.
Epidemics of HIV Infection among Heavy Drug Users of Depressants Only, Stimulants Only, and Both Depressants and Stimulants in Mainland China
Background: Heavy drug users was a global consensus high-risk population of HIV infection. However, the specific impact of drug on HIV infection has not yet been established. Depressants and stimulants were most widely used drugs in mainland China, and mix use of the two drugs was also serious. We assessed the HIV infection rate and trends in heavy drug users by analyzing data from the National Dynamic Management and Control Database for Drug Use…
Protect MSM from HIV and other sexually transmitted diseases by providing mobile health services of partner notification
ClinicalTrials.gov, NCT04349748 . Registered on 16 April 2020
The Epidemic of Sexually Transmitted Diseases Under the Influence of Covid-19 in China
Background: Prevention and control of HIV/AIDS and other sexually transmitted diseases (STDs) are major public health priorities in China, but are influenced by the COVID-19 epidemic. In this study, we aimed to quantitatively explore the impact of the COVID-19 epidemic and its control measures on five major STD epidemics in China. Methods: A monthly number of newly reported cases of HIV/AIDS, hepatitis B and C, gonorrhea, and syphilis from Januar…
Modeling the Dynamics of Drug Spreading in China
Drug abuse remains one of the major public health issues at the global level. In this article, we propose a drug epidemic model with a complete addiction-rehabilitation-recovery process, which allows the initiation of new users under the influence of drug addicts undergoing treatment and hidden drug addicts. We first conduct qualitative analyses of the dynamical behaviors of the model, including the existence and positivity of the solutions, the …
Epidemiological and clinical characteristics of the largest Covid-19 outbreak along the China-Myanmar border in Ruili City, Yunnan Province, China
Background Imported COVID-19 patients posed great challenges to border areas' COVID-19 control. However, research was scarce to reveal epidemiological characteristics of COVID-19 in border areas. This study aimed to explore the detailed transmission chains, and reveal epidemiological and clinical characteristics of the largest COVID-19 outbreak caused by Delta variant of concern (VOC) occurred in the China-Myanmar border area. Methods During the …
A four-generation family transmission chain of Covid-19 along the China–Myanmar border in October to November 2021
Background: Foreign imported patients and within-household transmission have been the focus and difficulty of coronavirus disease 2019 (COVID-19) prevention and control, which has also posed challenges to border areas' management. However, household transmission caused by foreign imported cases has not been reported in China's border areas. This study aimed to reveal a clear family clustering transmission chain of COVID-19 caused by contact with …
Trends in Methamphetamine Use in the Mainland of China, 2006–2015
Background Methamphetamine is the most prevalent drug in the mainland of China, yet few studies on the non-medical use of methamphetamine nationwide have been conducted. This study aimed to examine the trends in the prevalence of non-medical methamphetamine use and to explore the flow pattern of internal migrant methamphetamine users in the mainland of China. Methods Data were extracted from the National Dynamic Management and Control Database fo…
HIV risk and influence factors among MSM who had sought sexual partners in core venues
Background: Seeking sexual partners in men who have sex with men (MSM) venues has been regarded as a high-risk behavior for HIV among MSM. Nevertheless, with the implementation of venue-based interventions and the change in the way MSM seek sexual partners, the continued status of MSM venues as the HIV risk factor remains inconclusive. This study endeavors to delve into this ambiguity by examining the MSM sexual contact network (SCN) as a foundat…
Large-scale school scoliosis screening in a multi-ethnic, high-altitude region of southwestern China
Objectives To establish the first large-scale epidemiological profile of scoliosis among children and adolescents in Yunnan, China, and identify key demographic, anthropometric, and geographic determinants in this multi-ethnic, high-altitude region. Study design A population-based cross-sectional screening survey using multistage stratified cluster sampling. Methods A population-based cross-sectional survey of 69,811 students aged 6–18 was conduc…
Temporal trends in chronic diseases among offshore oil workers and the interaction effect of age with body mass index
Objective To analyze trends in hypertension, diabetes, and dyslipidemia prevalence among Chinese offshore oil workers and explore the independent and interaction effects of age and BMI. Methods Using health examination data of this population (2014–2024), we calculated the crude prevalence rate (CPR, the prevalence rate without age-structure adjustment) and the age-standardized prevalence rate (ASPR, adjusted to a standard population structure). …
Medicine (8 works) · China (6 works) · Environmental health (6 works) · HIV, Drug Use, Sexual Risk (6 works) · Geography (4 works) · HIV/AIDS Research and Interventions (4 works) · Virology (4 works) · Computer Science (3 works) · COVID-19 epidemiological studies (3 works) · Internal Medicine (3 works)