Susan Cha

ORCID: 0000-0003-1334-3697
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About
Contact & Profiles
Research Areas
  • HIV, Drug Use, Sexual Risk
  • HIV/AIDS Research and Interventions
  • Intimate Partner and Family Violence
  • Sex work and related issues
  • Reproductive Health and Contraception
  • Homicide, Infanticide, and Child Abuse
  • LGBTQ Health, Identity, and Policy
  • Adolescent Sexual and Reproductive Health
  • Global Maternal and Child Health
  • Maternal Mental Health During Pregnancy and Postpartum
  • Reproductive tract infections research
  • Reproductive Health and Technologies
  • Family Dynamics and Relationships
  • Syphilis Diagnosis and Treatment
  • Maternal and Perinatal Health Interventions
  • Gestational Diabetes Research and Management
  • Homelessness and Social Issues
  • Gender, Feminism, and Media
  • Sexuality, Behavior, and Technology
  • Child Abuse and Trauma
  • Hepatitis B Virus Studies
  • Pregnancy and preeclampsia studies
  • Breastfeeding Practices and Influences
  • HIV Research and Treatment
  • Hepatitis Viruses Studies and Epidemiology

Centers for Disease Control and Prevention
2017-2024

National Center for HIV/AIDS Viral Hepatitis STD and TB Prevention
2018-2024

AID Atlanta
2019

Office of Science
2019

Virginia Commonwealth University
2013-2018

Center for Surveillance, Epidemiology, and Laboratory Services
2018

The Centers
2018

Epidemic Intelligence Service
2017

Sakarya University
2016

RELX Group (United States)
2015

In 2017, preliminary data show that gay, bisexual, and other men who have sex with (MSM) accounted for 67% of new diagnoses human immunodeficiency virus (HIV) infection, MSM inject drugs an additional 3%, African American/black (black) Hispanic/Latino (Hispanic) were disproportionately affected (1). During 2010-2015, racial/ethnic disparities in HIV incidence increased among MSM; 2015, rates black Hispanic 10.5 4.9 times as high, respectively, the rate white (compared 9.2 3.8 2010) (2)....

10.15585/mmwr.mm6837a2 article EN MMWR Morbidity and Mortality Weekly Report 2019-09-19

In February 2019, the U.S. Department of Health and Human Services proposed a strategic initiative to end human immunodeficiency (HIV) epidemic in United States by reducing new HIV infections 90% during 2020-2030* (1). Phase 1 Ending Epidemic focuses on Washington, DC; San Juan, Puerto Rico; 48 counties where majority diagnoses infection 2016 2017 were concentrated seven states with disproportionate occurrence rural areas relative other states.† One four pillars is protecting persons at risk...

10.15585/mmwr.mm6827a1 article EN MMWR Morbidity and Mortality Weekly Report 2019-07-11

Background.Men who have sex with men (MSM) accounted for two thirds of new HIV infections in the United States 2019 despite representing approximately 2% adult population.Methods.CDC analyzed surveillance data to determine trends estimated and assess measures undiagnosed infection prevention treatment services including testing, preexposure prophylaxis (PrEP) use, antiretroviral therapy (ART) adherence, viral suppression, as well HIV-related stigma.Results.The number among MSM was 25,100...

10.15585/mmwr.mm7048e1 article EN MMWR Morbidity and Mortality Weekly Report 2021-11-30

Transgender women experience discrimination in many settings, including employment. Because employment and health insurance are intertwined the United States, might be related to lower coverage care use, gender-affirming care. This analysis used data from transgender (N = 1,608) seven urban areas States collected during 2019-2020 present prevalence of six types (employment, housing, bathroom, businesses, care, abuse) measure association between (defined as trouble getting a job or fired due...

10.15585/mmwr.su7301a6 article EN MMWR Supplements 2024-01-23

Transgender women, especially transgender women of color, are disproportionately affected by HIV. However, no surveillance system collects data on HIV risk factors among this population. To address gap, CDC developed a entitled National Behavioral Surveillance Among Women (NHBS-Trans) to assess behavioral and contextual through systematic biobehavioral monitor factors, prevention usage, prevalence women. NHBS-Trans used respondent-driven sampling in seven urban areas the United States....

10.15585/mmwr.su7301a1 article EN MMWR Supplements 2024-01-23

Over 1.5 million women are victims of physical, sexual, and emotional abuse by former or present intimate partners. Intimate partner violence (IPV) around pregnancy can lead to devastating health consequences mothers infants. While some research suggests that IPV negatively affects the utilization services like prenatal care (PNC), inconsistencies in assessment PNC utilization, timing violence, definitions yield conflicting results. The objective for study is evaluate whether preconception...

10.1177/0886260513505711 article EN Journal of Interpersonal Violence 2013-11-06

During exercise, the sympathetic nervous system is activated, which causes vasoconstriction. The autonomic mechanisms responsible for this vasoconstriction vary based on particular tissue being studied. Attempts to examine reflex control of human renal circulation have been difficult because technical limitations. In report, Doppler technique was used flow velocity during four muscle contraction paradigms in conscious humans. Flow divided by mean arterial blood pressure yield an index...

10.1152/ajpheart.00214.2003 article EN AJP Heart and Circulatory Physiology 2003-09-01

The postpartum care visit (PPCV) plays an important role in ensuring the well-being of mother and infant. This study sought to assess correlates PPCV attendance among women who are at high risk nonattendance.This used deidentified medical claims data from Virginia Premier-a nonprofit Managed Care Organization that provides health insurance for Medicaid beneficiaries. association between various was examined using multiple logistic regression analyses.Of 25,692 study, more than half (50.5%)...

10.1089/jwh.2016.6137 article EN Journal of Women s Health 2018-02-16

Prepregnancy overweight/obesity can adversely affect breastfeeding initiation, but studies examining this association among different racial/ethnic groups of U.S. women are limited. This study used a large, nationally representative sample to assess differences in noninitiation body mass index (BMI) classifications.This analyzed data from the Pregnancy Risk Assessment Monitoring System, including 95,141 who delivered live, singleton baby 2009 2011 and provided BMI information. was...

10.1089/bfm.2015.0006 article EN Breastfeeding Medicine 2015-04-21

Violence and harassment toward transgender women are associated with suicidal thoughts behaviors, social support might moderate such association. This analysis explored the association between certain forms of violence ideation moderation by support. Better understanding these associations could guide mental health services structural interventions appropriate to lived experiences women. cross-sectional used data from CDC's National HIV Behavioral Surveillance Among Transgender Women. During...

10.15585/mmwr.su7301a7 article EN MMWR Supplements 2024-01-23

This study examines the interrelationship between gestational weight gain, pre-pregnancy body mass index (BMI), race/ethnicity, and their association with hypertensive disorders during pregnancy (HDP).Data from 2004-2011 national Pregnancy Risk Assessment Monitoring System (PRAMS) were analyzed. Women singleton live births included in analysis (N = 270,131). Gestational gain was categorized reflecting Institute of Medicine (IOM) recommendation (no gain/weight loss; ≤11, 12-14; 15-25; 26-35;...

10.1093/ajh/hpv184 article EN American Journal of Hypertension 2015-11-16

Abstract People experiencing homelessness (PEH) are at higher risk for chronic health conditions, but clinical characteristics and outcomes PEH hospitalized with coronavirus disease 2019 (COVID-19) not known. We analyzed population-based surveillance data of COVID-19–associated hospitalizations during 1 March to 31 May 2020. Two percent the people COVID-19 whom a housing status was recorded were homeless. Of 199 cases in analytic sample, most racial/ethnic minority groups had underlying...

10.1093/infdis/jiab261 article EN public-domain The Journal of Infectious Diseases 2021-05-12

Transgender women experience high prevalence of homelessness, which can affect their likelihood acquiring HIV infection and lead to poor medical outcomes. CDC analyzed data from the National Behavioral Surveillance Among Women identify whether personal characteristics social factors affecting transgender were associated with duration homelessness during past 12 months. Longer chronic might indicate greater unmet needs, increases for infection. Ordinal logistic regression was conducted...

10.15585/mmwr.su7301a5 article EN MMWR Supplements 2024-01-23

In 2013, 1 in every 10 students who dated or went out with someone the previous 12 months reported some form of dating violence (DV). Only a few studies have evaluated relationship between DV and disordered eating (DE). This study aims to evaluate gender differences association victimization DE behaviors using nationally representative sample high school United States.Data came from 2013 National Youth Risk Behavior Survey. Students going anyone responded questions were included (N = 9,677)....

10.1089/jwh.2015.5324 article EN Journal of Women s Health 2016-02-12

Background: Intimate partner violence is a major public health problem that disproportionately affects women. Current literature investigating the relationship between intimate and breastfeeding inconsistent. Research aim: This study aims to investigate physical occurs in preconception or prenatal period any duration. Methods: Data from retrospective, cross-sectional 2004-2014 Pregnancy Risk Assessment Monitoring System were analyzed ( N = 195,264). The outcome, duration, was categorized as...

10.1177/0890334418757447 article EN Journal of Human Lactation 2018-03-29

Although adequate folic acid or multivitamins can prevent up to 70 % of neural tube defects, the majority U.S. non-pregnant women childbearing age do not use every day. Factors influencing consistent multivitamin are fully explored. This study aims investigate association between pre-pregnancy body mass index (BMI) and before pregnancy using a large, nationally representative sample with recent live births. The national 2009–2011 Pregnancy Risk Assessment Monitoring System data were...

10.1186/s12884-016-1002-0 article EN cc-by BMC Pregnancy and Childbirth 2016-08-05

Background. Delays in postpartum contraceptive use may increase risk for unintended or rapid repeat pregnancies. The care visit (PPCV) is a good opportunity women to discuss family planning options with their health providers. This study examined the association between PPCV attendance and modern using data from managed organization. Methods. Claims demographic administrative came nonprofit organization Virginia (2008-2012). Information on most recent delivery mothers singleton births was...

10.1155/2016/2058127 article EN cc-by Journal of Pregnancy 2016-01-01

Research has shown that early age of sexual debut is associated with physical dating violence (PDV), but sex-specific associations are sparse. We estimated the prevalence PDV victimization in high school students who have initiated intercourse and examined association between victimization.Data on 8637 grades 9 through 12 had sex was obtained from 2009-2011 national Youth Risk Behavior Survey. The using multiple logistic regression, accounting for complex survey design, stratified by...

10.1111/josh.12485 article EN Journal of School Health 2017-02-01

Background: Understanding the interrelationships between risky health behaviors is critical for promotion efforts. Conceptual frameworks understanding substance misuse (e.g. stepping-stone models) have not yet widely incorporated other behaviors, including those related to sexual health. Objectives: The goals of this study were assess relationship early debut and cannabis use, examine role licit use in association, evaluate differences by gender race/ethnicity. Methods: Data came from...

10.3109/10826084.2015.1110177 article EN Substance Use & Misuse 2016-02-16

Intimate partner violence (IPV) is a pervasive public health problem in the U.S., affecting nearly one every three women over their lifetimes. Using structural equation modeling, we evaluated association between IPV and unintended pregnancy, mediated by condom use perceived spousal/partner support among Latina Asian women. Data came from 2002–2003 National Latino American Study (NLAAS). The analysis was restricted to married or cohabiting female respondents aged 18+ years (n = 1,595)....

10.1080/03630242.2016.1170094 article EN Women & Health 2016-03-25

Transgender women are disproportionately affected by sexual violence and corresponding mental health sequelae; however, many do not access healthcare due to experiences with transphobia. This analysis evaluated the association between suicidal ideation moderating effect of having a provider (HCP) whom transgender were comfortable discussing gender-related issues (“gender-affirming HCP”). We analyzed cross-sectional data from Centers for Disease Control Prevention’s National HIV Behavioral...

10.1177/08862605241257592 article EN Journal of Interpersonal Violence 2024-06-06
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