Xinguang Chen

Bio: Xinguang Chen is an academic researcher from University of Florida. The author has contributed to research in topics: Population & Tobacco control. The author has an hindex of 47, co-authored 213 publications receiving 5644 citations. Previous affiliations of Xinguang Chen include Chinese Center for Disease Control and Prevention & Wuhan University.

Heterosexual transmission of HIV in China: a systematic review of behavioral studies in the past two decades.

Abstract: The objective of this study was to address the role of heterosexual transmission of HIV in China. The goal of this study was to explore the prevalence of unsafe sex and the likelihood of HIV spread heterosexually from core populations to others. The authors conducted a review of behavioral studies. Drug users were more likely to be involved in higher-risk sexual behaviors than were those who abstained from using drugs. Most female drug users (52–98%) reported having engaged in commercial sex. Most female sex workers (FSWs) and individuals with sexually transmitted diseases (STDs) had concurrent sexual partners. Many continued to have unprotected sex after noticing STD symptoms in themselves or their sexual partners. From 5% to 26% of rural-to-urban migrants had multiple sexual partners and 10% of males patronized FSWs during migration. Factors such as high rates of FSW patronage low rates of condom use during commercial sex having sex with both commercial and noncommercial sexual partners and high rates of STD infection may promote a heterosexual epidemic in China. (authors)

English language use as a risk factor for smoking initiation among Hispanic and Asian American adolescents: evidence for mediation by tobacco-related beliefs and social norms.

Abstract: Acculturation increases the risk of smoking among Hispanic and Asian American adolescents, but the underlying mechanisms are not understood. This study examined associations between English language use and smoking among 4,167 Hispanic and 2,836 Asian American adolescents in California. Potential mediators were assessed, including access to cigarettes, perceived consequences, friends' smoking, cigarette offers, refusal self-efficacy, and prevalence estimates of peer smoking. English language use was associated with increased risk of lifetime smoking in both groups. This association became nonsignificant after access, perceived consequences, friends' smoking, and offers were controlled for. The acculturation process (as indicated by English language use) may be associated with smoking-related psychosocial variables, which may lead to an increased risk of experimentation with smoking.

Personal Social Capital Scale: an instrument for health and behavioral research

Abstract: The concept of social capital has drawn much attention in social and behavioral epidemiology and health education research. The purpose of this study is to develop the 'Personal Social Capital Scale' for quantitative survey studies of social factors that are related to health and behavior. The instrument contained 10 composite items based on 42 items for assessing personally owned social capital, including bonding and bridging capitals. The instrument was assessed using cross-sectional survey data collected among 128 participants (64 women) with a participation rate of 95%. Results from correlation and confirmatory factor analysis indicated adequate reliability and internal consistency. The mean score of the scale was 25.9 (SD = 5.2) for total social capital, 15.2 (SD = 3.0) for bonding social capital and 10.8 (SD = 3.4) for bridging social capital. The scale scores significantly predicted a number of theoretically related factors, including people skills, being sociable, social capital investment, informational support, instrumental support, emotional support and collective efficacy. This instrument provides a new tool for cross-cultural research to assess personally owned social capital.

Global prevalence of hypertension among people living with HIV: a systematic review and meta-analysis

Abstract: The purpose of this study was to estimate, through meta-analysis, the global prevalence of hypertension among people living with HIV (PLWH). A total of 49 studies published during 2011-2016 with 63,554 participants were included in analysis. These studies were conducted in America (25), Europe (13), Africa (10), and Asia (1) with data collected during 1996-2014. Prevalence of hypertension and confidence interval was estimated and stratified by participants' age, antiretroviral therapy (ART), and calendar-years using random effects modeling. The quality assessed using the Joanna Briggs Institute Prevalence Critical Appraisal Tool was high for all included studies. The estimated prevalence (95% confidence interval) of hypertension was 25.2% (21.2%, 29.6%) for the overall sample, 34.7% (27.4%, 42.8%) for ART-experienced, and 12.7% (7.4%, 20.8%) for ART-naive participants. The estimated prevalence was found increased with age and in studies conducted after 2010. Hypertension among PLWH shows an increasing trend and is associated with receiving ART and older age. Findings of this study provide data for decision makers to incorporate blood pressure assessment in primary prevention and for researchers to further investigate factors and mechanisms related to hypertension among PLWH.

Heart Disease and Stroke Statistics—2019 Update: A Report From the American Heart Association

Abstract: March 5, 2019 e1 WRITING GROUP MEMBERS Emelia J. Benjamin, MD, ScM, FAHA, Chair Paul Muntner, PhD, MHS, FAHA, Vice Chair Alvaro Alonso, MD, PhD, FAHA Marcio S. Bittencourt, MD, PhD, MPH Clifton W. Callaway, MD, FAHA April P. Carson, PhD, MSPH, FAHA Alanna M. Chamberlain, PhD Alexander R. Chang, MD, MS Susan Cheng, MD, MMSc, MPH, FAHA Sandeep R. Das, MD, MPH, MBA, FAHA Francesca N. Delling, MD, MPH Luc Djousse, MD, ScD, MPH Mitchell S.V. Elkind, MD, MS, FAHA Jane F. Ferguson, PhD, FAHA Myriam Fornage, PhD, FAHA Lori Chaffin Jordan, MD, PhD, FAHA Sadiya S. Khan, MD, MSc Brett M. Kissela, MD, MS Kristen L. Knutson, PhD Tak W. Kwan, MD, FAHA Daniel T. Lackland, DrPH, FAHA Tené T. Lewis, PhD Judith H. Lichtman, PhD, MPH, FAHA Chris T. Longenecker, MD Matthew Shane Loop, PhD Pamela L. Lutsey, PhD, MPH, FAHA Seth S. Martin, MD, MHS, FAHA Kunihiro Matsushita, MD, PhD, FAHA Andrew E. Moran, MD, MPH, FAHA Michael E. Mussolino, PhD, FAHA Martin O’Flaherty, MD, MSc, PhD Ambarish Pandey, MD, MSCS Amanda M. Perak, MD, MS Wayne D. Rosamond, PhD, MS, FAHA Gregory A. Roth, MD, MPH, FAHA Uchechukwu K.A. Sampson, MD, MBA, MPH, FAHA Gary M. Satou, MD, FAHA Emily B. Schroeder, MD, PhD, FAHA Svati H. Shah, MD, MHS, FAHA Nicole L. Spartano, PhD Andrew Stokes, PhD David L. Tirschwell, MD, MS, MSc, FAHA Connie W. Tsao, MD, MPH, Vice Chair Elect Mintu P. Turakhia, MD, MAS, FAHA Lisa B. VanWagner, MD, MSc, FAST John T. Wilkins, MD, MS, FAHA Sally S. Wong, PhD, RD, CDN, FAHA Salim S. Virani, MD, PhD, FAHA, Chair Elect On behalf of the American Heart Association Council on Epidemiology and Prevention Statistics Committee and Stroke Statistics Subcommittee

Heart Disease and Stroke Statistics—2020 Update: A Report From the American Heart Association

Abstract: Background: The American Heart Association, in conjunction with the National Institutes of Health, annually reports on the most up-to-date statistics related to heart disease, stroke, and cardiovas...

Heart Disease and Stroke Statistics-2021 Update: A Report From the American Heart Association.

Abstract: Background: The American Heart Association, in conjunction with the National Institutes of Health, annually reports the most up-to-date statistics related to heart disease, stroke, and cardiovascul...

The Self-medication Hypothesis of Substance Use Disorders: A Reconsideration and Recent Applications

Abstract: The self-medication hypothesis of addictive disorders derives primarily from clinical observations of patients with substance use disorders. Individuals discover that the specific actions or effects of each class of drugs relieve or change a range of painful affect states. Self-medication factors occur in a context of self-regulation vulnerabilities--primarily difficulties in regulating affects, self-esteem, relationships, and self-care. Persons with substance use disorders suffer in the extreme with their feelings, either being overwhelmed with painful affects or seeming not to feel their emotions at all. Substances of abuse help such individuals to relieve painful affects or to experience or control emotions when they are absent or confusing. Diagnostic studies provide evidence that variously supports and fails to support a self-medication hypothesis of addictive disorders. The cause-consequence controversy involving psychopathology and substance use/abuse is reviewed and critiqued. In contrast, clinical observations and empirical studies that focus on painful affects and subjective states of distress more consistently suggest that such states of suffering are important psychological determinants in using, becoming dependent upon, and relapsing to addictive substances. Subjective states of distress and suffering involved in motives to self-medicate with substances of abuse are considered with respect to nicotine dependence and to schizophrenia and posttraumatic stress disorder comorbid with a substance use disorder.

Acculturation and Latino Health in the United States: A Review of the Literature and its Sociopolitical Context

Abstract: This chapter provides an overview of the concept of acculturation and reviews existing evidence about the possible relationships between acculturation and selected health and behavioral outcomes among Latinos. The effect of acculturation on Latino health is complex and not well understood. In certain areas - substance abuse, dietary practices, and birth outcomes - there is evidence that acculturation has a negative effect and that it is associated with worse health outcomes, behaviors, or perceptions. In others - health care use and self-perceptions of health - the effect is mostly in the positive direction. Although the literature, to date, on acculturation lacks some breadth and methodological rigor, the public health significance of findings in areas in which there is enough evidence justifies public health action.We conclude with a set of general recommendations in two areas - public health practice and research - targeted to public health personnel in academia, community-based settings, and government agencies.