Catherine E Oldenburg
Biographic Data
| ID | 329160 |
|---|---|
| NAME | Catherine E Oldenburg |
| GIVEN NAMES | Catherine E |
| FAMILY NAME | Oldenburg |
| SIGNATURE | OLDENBURG C E |
| AFFILIATIONS | University of California, San Francisco |
| ORCID | 0000-0002-0763-399X |
| VERIFIED | Yes |
| TOTAL WORKS | 39 |
| TOTAL CITATIONS | 10 |
| AUTHOR COUNT | 39 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2014 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
LocaliType
Locality archetypes (denoted as LocaliTypes) - neighborhood, district, or nearby region patterns shaped by multiple social determinants of health (SDOH) - offer a novel approach to understanding place-based inequalities while preserving data confidentiality in the era of big data. Using 2020 U.S. Census shaped census tract-level data from the UCSF Health Atlas, we developed LocaliTypes and conducted exploratory validation analyses. We grouped 107…
Predictors of home- vs . facility-based delivery among women living in rural Niger
Background: Niger has one of the highest maternal mortality rates, and facility delivery can help prevent these deaths. While distance to health facilities predicts home delivery in other sub-Saharan African settings, few studies have examined this relationship in Niger. Methods: This cross-sectional survey, an ancillary study to the AVENIR trial, included women aged 12-59 years old with a child participating in a sub-trial of AVENIR. Trained wor…
Caregiver Screening for Relapse Among Children Recently Recovered From Severe Acute Malnutrition
Relapse to acute malnutrition after recovery from severe acute malnutrition (SAM) is common. However, most programmatic resources are devoted to the acute phase of recovery, and fewer interventions are available for children recently discharged from outpatient nutritional programs. We evaluated the feasibility of training caregivers to screen for relapse using mid-upper arm circumference (MUAC) tapes for reducing time to detection of relapse amon…
From Trust to Skepticism
Mass vaccination emerged as a key public health strategy during the COVID-19 pandemic. Yet, greater attention is needed to understand the shifting dynamics of vaccine messaging amid rampant uncertainty across the United States, including its impact on vaccine uptake behaviors over time. Our study presented a unique opportunity to longitudinally explore how perceived uncertainties in COVID-19 vaccine messaging shaped vaccine uptake behaviors among…
Seasonality of underweight among infants 1–11 months old in Niger
INTRODUCTION: Malnutrition is a risk factor for child mortality, with around 45% of deaths in children under 5 globally linked to malnutrition. Seasonality of malnutrition has important implications for the timing of child health programme activities, but evidence is mixed on the nature of such patterns. Moreover, the bulk of the existing evidence is focused on wasting and stunting in children 6-59 months, despite increasing evidence that younger…
The role of seasonal malaria chemoprevention in the effect of azithromycin on child mortality
The objective of this study was to examine whether the effect of mass Azithromycin (AZ) distribution on all-cause mortality among children under 5 varies with seasonal malaria chemoprevention (SMC) administration season or coverage. This was a secondary analysis of the Community Health with Azithromycin Trial (CHAT), a cluster-randomized, placebo-controlled trial of twice-yearly AZ treatment in 341 communities in the Nouna District, Burkina Faso.…
Mass azithromycin for prevention of child mortality among children with acute malnutrition
Children with acute malnutrition are at high risk of morality. Mass azithromycin distribution reduces all-cause mortality among children aged 1–59 months, and effects may be greater in underweight infants. Here, we evaluate the efficacy of azithromycin for reducing all-cause mortality in children aged 6–59 months with acute malnutrition (mid-upper arm circumference, MUAC, P -value for interaction on the relative scale = 0.09; P -value for interac…
Neonatal anthropometric indicators of infant growth and mortality in Burkina Faso
Objective: Most evidence supporting screening for undernutrition is for children aged 6–59 months. However, the highest risk of mortality and highest incidence of wasting occurs in the first 6 months of life. We evaluated relationships between neonatal anthropometric indicators, including birth weight, weight-for-age Z -score (WAZ), weight-for-length Z-score (WLZ), length-for-age Z -score (LAZ) and mid-upper arm circumference (MUAC) and mortality…
Infant mortality and growth failure after oral azithromycin among low birthweight and underweight neonates
Background Low birthweight (birthweight Methods Infants aged 8–27 days of age weighing ≥2500 g at enrollment in Burkina Faso were randomized 1:1 to a single, oral dose of azithromycin (20 mg/kg) or matching placebo. We evaluated mortality and anthropometric outcomes in four subgroups: 1) both low birthweight and underweight at enrollment; 2) low birthweight-only; 3) underweight-only; 4) neither low birthweight nor underweight. Findings Of 21,832 …
The effect of malaria on childhood anemia in a quasi-experimental study of 7,384 twins from 23 Sub-Saharan African countries
Background Young children in Sub-Saharan Africa (SSA), particularly those from resource-limited settings, are heavily burdened by anemia and malaria. While malaria infected children frequently become anemic (hemoglobin < 110 g/L), anemia is a strongly multifactorial disease with many other risk factors than malaria. Due to the complex and often overlapping contributors to anemia, it remains challenging to isolate the true impact of malaria on pop…
Simplified dosing of oral azithromycin for children 1–11 months old in child survival programmes
BACKGROUND: To facilitate mass distribution of azithromycin, trachoma control programmes use height instead of weight to determine dose for children 6 months to 15 years old. WHO has recommended azithromycin distribution to children 1-11 months old to reduce mortality in high mortality settings under carefully monitored conditions. Weight was used to determine dose in children 1-5 months old in studies of azithromycin distribution for child survi…
How does baseline anthropometry affect anthropometric outcomes in children receiving treatment for severe acute malnutrition? A secondary analysis of a randomized controlled trial
Mid-upper arm circumference (MUAC) < 11.5 cm and weight-for-height Z-score (WHZ) < -3 are used for screening for severe acute malnutrition (SAM). Underweight and concurrent wasting and stunting may better target those at the highest risk of mortality. We compared anthropometric outcomes in children enrolled in a trial of antibiotics for SAM based on categories of baseline anthropometry, including indicators for programme admission (WHZ < -3, MUAC…
Covid-19 Related Shifts in Social Interaction, Connection, and Cohesion Impact Psychosocial Health
While effective for slowing the transmission of SARS-CoV-2, public health measures, such as physical distancing and stay-at-home orders, have significantly shifted the way people interact and maintain social connections. To better understand how people sought social and psychological support amid the pandemic, we conducted a longitudinal qualitative evaluation of participants enrolled in a COVID-19 treatment trial ( N = 30). All participants from…
Same-Sex Marriage Laws, Provider-Patient Communication, and PrEP Awareness and Use Among Gay, Bisexual, and Other Men Who have Sex with Men in the United States
PrEP uptake and delivery setting preferences among clients visiting six healthcare facilities in Eswatini
Due to the high HIV incidence among the general population of Eswatini, pre-exposure prophylaxis (PrEP) for HIV-exposed individuals is recommended. However, little is known about PrEP uptake and preferences in PrEP delivery healthcare setting among the general population. We conducted a secondary analysis of a randomized trial that aimed to increase PrEP uptake. All clients eligible for PrEP in one of six public-sector healthcare facilities in Es…
Unintended uses, meanings, and consequences
Female sex workers (FSWs) are at increased risk of HIV and face significant barriers to clinic-based HIV testing, including provider stigma and privacy constraints. HIV self-testing (HIVST) has been proven to significantly increase HIV testing among FSWs. Less is known, however, about how FSWs make meaning of oral-fluid HIV self-tests, and the unintended ways they use and understand this novel technology. From October 2016 to March 2017, we condu…
Age-based targeting of biannual azithromycin distribution for child survival in Niger
This trial was registered on January 13, 2020 (clinicaltrials.gov: NCT04224987 )
But I Gathered My Courage
HIV self-testing (HIVST) increases HIV testing in diverse populations, but little is known about the experiences of individuals who self-test. We used a five-step framework approach to analyze 62 qualitative interviews with 33 female sex workers (FSWs) participating in an HIVST trial in urban Uganda. Notions of empowerment emerged from the data, and findings were interpreted based on Kabeer's empowerment framework of resources, agency, and achiev…
Comparison of anthropometric indicators to predict mortality in a population-based prospective study of children under 5 years in Niger
Objective: In the present study, we aimed to compare anthropometric indicators as predictors of mortality in a community-based setting. Design: We conducted a population-based longitudinal study nested in a cluster-randomized trial. We assessed weight, height and mid-upper arm circumference (MUAC) on children 12 months after the trial began and used the trial’s annual census and monitoring visits to assess mortality over 2 years. Setting: Niger. …
Structural, interpersonal, psychosocial, and behavioral risk factors for HIV acquisition among female bar workers in Dar es Salaam, Tanzania
In sub-Saharan Africa, female bar workers (FBWs) often serve as informal sex workers. Little is known about the prevalence of HIV and HIV-related risk factors among FBWs in Dar es Salaam (DSM), Tanzania. Using an adapted Structural HIV Determinants Framework, we identified structural, interpersonal, psychosocial, and behavioral risk factors for HIV acquisition. We compared the prevalence of HIV and HIV-related risk factors among a random sample o…
Homophobia and heteronormativity as dimensions of stigma that influence sexual risk behaviors among men who have sex with men (MSM) and women (MSMW) in Lima, Peru
MSMW recently diagnosed with HIV/STI in Peru report varying partnership characteristics, with different partner-specific risk contexts and prevention needs. Descriptions highlight how behaviorally bisexual partnerships cut across traditional risk group boundaries and suggest that HIV/STI prevention strategies must address diverse, partnership-specific risks
Factors Associated with PrEP Refusal Among Transgender Women in Northeastern Brazil
The Effect of HIV Self-Testing Delivery Models on Female Sex Workers’ Sexual Behaviors
HIV self-testing increases recent and frequent HIV testing among female sex workers (FSWs) in urban Uganda. Using results from a randomized controlled trial, we aim to establish the effect of HIV self-testing delivery models on FSWs' sexual behaviors in this setting. Clusters of one peer educator and eight participants were 1:1:1 randomized to: (1) direct provision of an HIV self-test, (2) provision of a coupon for facility collection of an HIV s…
Defining the HIV pre-exposure prophylaxis care continuum
Pre-exposure prophylaxis (PrEP) is an effective HIV prevention strategy. There is little scientific consensus about how to measure PrEP program implementation progress. We draw on several years of experience in implementing PrEP programs and propose a PrEP continuum of care that includes: (1) identifying individuals at highest risk for contracting HIV, (2) increasing HIV risk awareness among those individuals, (3) enhancing PrEP awareness, (4) fa…
Behavioral Changes Following Uptake of HIV Pre-exposure Prophylaxis Among Men Who Have Sex with Men in a Clinical Setting
High Prevalence of Multiple Syndemic Conditions Associated with Sexual Risk Behavior and HIV Infection Among a Large Sample of Spanish- and Portuguese-Speaking Men Who Have Sex with Men in Latin Ameri…
HIV Prevention Needs Among Street-Based Male Sex Workers in Providence, Rhode Island
We examined data derived from a needs assessment of the personal and social characteristics and HIV risk behavior of street-based male sex workers, in Providence, Rhode Island, who engage in transactional sexual intercourse with other men. Substance use, injected drugs, needle sharing, and psychosocial distress were highly prevalent among the sample. History of physical, sexual, and emotional abuse was associated with increased risk of condomless…
But I Gathered My Courage
HIV self-testing (HIVST) increases HIV testing in diverse populations, but little is known about the experiences of individuals who self-test. We used a five-step framework approach to analyze 62 qualitative interviews with 33 female sex workers (FSWs) participating in an HIVST trial in urban Uganda. Notions of empowerment emerged from the data, and findings were interpreted based on Kabeer's empowerment framework of resources, agency, and achiev…
HIV Prevention Needs Among Street-Based Male Sex Workers in Providence, Rhode Island
We examined data derived from a needs assessment of the personal and social characteristics and HIV risk behavior of street-based male sex workers, in Providence, Rhode Island, who engage in transactional sexual intercourse with other men. Substance use, injected drugs, needle sharing, and psychosocial distress were highly prevalent among the sample. History of physical, sexual, and emotional abuse was associated with increased risk of condomless…
State-level structural sexual stigma and HIV prevention in a national online sample of HIV-uninfected MSM in the United States
BACKGROUND: Stigmatizing social environments (of which 'structural stigma' is one component) negatively affect health-related outcomes. However, few studies have examined structural stigma related to sexual minority status as a risk factor for HIV outcomes among MSM. METHODS: In August 2013, members of a large MSM social and sexual networking site in the United States completed a survey about HIV-prevention practices. A previously validated compo…
Differences in Attitudes About HIV Pre-Exposure Prophylaxis Use Among Stimulant Versus Alcohol Using Men Who Have Sex with Men
High Levels of Concomitant Behavioral Health Disorders Among Patients Presenting for HIV Non-occupational Post-exposure Prophylaxis at a Boston Community Health Center Between 1997 and 2013
Seasons of Risk
HIV, Hepatitis C, and Other Sexually Transmitted Infections Among Male Sex Workers in Ho Chi Minh City, Vietnam
Early Adopters
Individual- and Structural-Level Risk Factors for Suicide Attempts Among Transgender Adults
This study assessed individual (ie, internalized transphobia) and structural forms of stigma as risk factors for suicide attempts among transgender adults. Internalized transphobia was assessed through a 26-item scale including four dimensions: pride, passing, alienation, and shame. State-level structural stigma was operationalized as a composite index, including density of same-sex couples; proportion of Gay-Straight Alliances per public high sc…
Transactional Sex Among Men Who Have Sex With Men in Latin America
Objectives. We assessed factors associated with engagement in transactional sex among men who have sex with men recruited from one of the largest Internet sites for men seeking social or sexual interactions with other men in Latin America. Methods. We constructed multilevel logistic regression models to analyze factors associated with engagement in transactional sex in 17 Latin American countries in 2012. Results. Of 24 051 respondents, 1732 (7.2…
High Prevalence of Multiple Syndemic Conditions Associated with Sexual Risk Behavior and HIV Infection Among a Large Sample of Spanish- and Portuguese-Speaking Men Who Have Sex with Men in Latin Ameri…
Multiple syndemic psychosocial factors are associated with reduced engagement in HIV care among a multinational, online sample of HIV-infected MSM in Latin America
Latin America has some of the highest levels of antiretroviral therapy (ART) coverage of any developing region in the world. Early initiation and optimal adherence to ART are necessary for improved health outcomes and reduction in onward transmission. Previous work has demonstrated the role of psychosocial problems as barriers to uptake and adherence to ART, and recently, a syndemic framework has been applied to the role of multiple psychosocial …
The “Safe Sex” Conundrum
HIV Pre-exposure Prophylaxis Indication and Readiness Among HIV-Uninfected Transgender Women in Ho Chi Minh City, Vietnam
A Group-Based Sexual Risk Reduction Intervention for Men Who Have Sex With Men in Ho Chi Minh City, Vietnam
Defining the HIV pre-exposure prophylaxis care continuum
Pre-exposure prophylaxis (PrEP) is an effective HIV prevention strategy. There is little scientific consensus about how to measure PrEP program implementation progress. We draw on several years of experience in implementing PrEP programs and propose a PrEP continuum of care that includes: (1) identifying individuals at highest risk for contracting HIV, (2) increasing HIV risk awareness among those individuals, (3) enhancing PrEP awareness, (4) fa…
Behavioral Changes Following Uptake of HIV Pre-exposure Prophylaxis Among Men Who Have Sex with Men in a Clinical Setting
Structural, interpersonal, psychosocial, and behavioral risk factors for HIV acquisition among female bar workers in Dar es Salaam, Tanzania
In sub-Saharan Africa, female bar workers (FBWs) often serve as informal sex workers. Little is known about the prevalence of HIV and HIV-related risk factors among FBWs in Dar es Salaam (DSM), Tanzania. Using an adapted Structural HIV Determinants Framework, we identified structural, interpersonal, psychosocial, and behavioral risk factors for HIV acquisition. We compared the prevalence of HIV and HIV-related risk factors among a random sample o…
Homophobia and heteronormativity as dimensions of stigma that influence sexual risk behaviors among men who have sex with men (MSM) and women (MSMW) in Lima, Peru
MSMW recently diagnosed with HIV/STI in Peru report varying partnership characteristics, with different partner-specific risk contexts and prevention needs. Descriptions highlight how behaviorally bisexual partnerships cut across traditional risk group boundaries and suggest that HIV/STI prevention strategies must address diverse, partnership-specific risks
Factors Associated with PrEP Refusal Among Transgender Women in Northeastern Brazil
The Effect of HIV Self-Testing Delivery Models on Female Sex Workers’ Sexual Behaviors
HIV self-testing increases recent and frequent HIV testing among female sex workers (FSWs) in urban Uganda. Using results from a randomized controlled trial, we aim to establish the effect of HIV self-testing delivery models on FSWs' sexual behaviors in this setting. Clusters of one peer educator and eight participants were 1:1:1 randomized to: (1) direct provision of an HIV self-test, (2) provision of a coupon for facility collection of an HIV s…
Comparison of anthropometric indicators to predict mortality in a population-based prospective study of children under 5 years in Niger
Objective: In the present study, we aimed to compare anthropometric indicators as predictors of mortality in a community-based setting. Design: We conducted a population-based longitudinal study nested in a cluster-randomized trial. We assessed weight, height and mid-upper arm circumference (MUAC) on children 12 months after the trial began and used the trial’s annual census and monitoring visits to assess mortality over 2 years. Setting: Niger. …
Unintended uses, meanings, and consequences
Female sex workers (FSWs) are at increased risk of HIV and face significant barriers to clinic-based HIV testing, including provider stigma and privacy constraints. HIV self-testing (HIVST) has been proven to significantly increase HIV testing among FSWs. Less is known, however, about how FSWs make meaning of oral-fluid HIV self-tests, and the unintended ways they use and understand this novel technology. From October 2016 to March 2017, we condu…
Age-based targeting of biannual azithromycin distribution for child survival in Niger
This trial was registered on January 13, 2020 (clinicaltrials.gov: NCT04224987 )
But I Gathered My Courage
HIV self-testing (HIVST) increases HIV testing in diverse populations, but little is known about the experiences of individuals who self-test. We used a five-step framework approach to analyze 62 qualitative interviews with 33 female sex workers (FSWs) participating in an HIVST trial in urban Uganda. Notions of empowerment emerged from the data, and findings were interpreted based on Kabeer's empowerment framework of resources, agency, and achiev…
The effect of malaria on childhood anemia in a quasi-experimental study of 7,384 twins from 23 Sub-Saharan African countries
Background Young children in Sub-Saharan Africa (SSA), particularly those from resource-limited settings, are heavily burdened by anemia and malaria. While malaria infected children frequently become anemic (hemoglobin < 110 g/L), anemia is a strongly multifactorial disease with many other risk factors than malaria. Due to the complex and often overlapping contributors to anemia, it remains challenging to isolate the true impact of malaria on pop…
Medicine (34 works) · HIV/AIDS Research and Interventions (22 works) · Demography (20 works) · HIV, Drug Use, Sexual Risk (19 works) · Sex work and related issues (18 works) · Family medicine (17 works) · Psychology (17 works) · Public health (17 works) · Environmental health (15 works) · Psychiatry (14 works)