Sara Bares

Dr. Sara Bares

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2018 in Journal of Women's Health
Verified
Journal Article
Closed access
SBSara Bares
Sara Bares
LSLaura M. Smeaton
Laura M. Smeaton
AXAi Xu
Ai Xu
CGCatherine Godfrey
Catherine Godfrey
GMGrace A. McComsey
Grace A. McComsey
Obesity is prevalent among HIV-infected individuals on antiretroviral therapy (ART). Cross-sectional studies have suggested that HIV-infected women are more likely to be overweight than men, but observational studies evaluating sex differences in body mass index (BMI) increases following ART initiation are conflicting. We pooled data from three randomized clinical trials of ART initiation in persons with HIV in the United States. BMIs were compared between 760 women and 3041 men to test whether BMI changes in the first 96 weeks following initiation of ART differed by sex at birth. Linear regression estimated the relationship between sex and change in BMI from pre-ART initiation to week 96. After 96 weeks, women gained an average of 1.91 kg/m2 (95% confidence interval [CI] 1.64-2.19), men gained an average of 1.39 kg/m2 (95% CI 1.30-1.48); p for sex difference <0.001; the sex difference persisted within each pre-ART initiation BMI subgroup. After adjusting for pre-ART initiation age, CD4+ count, HIV-1 viral load, race/ethnicity, study, and ART regimen, mean BMI change for women was 0.59 kg/m2 (95% CI 0.37-0.81) more than for men (p < 0.001). Statistical interactions were observed between sex and both pre-ART CD4+ count and HIV-1 viral load and suggest that for subgroups with higher viral load and lower CD4+ at baseline, the estimated BMI changes in women are even larger than the average estimated difference. HIV-1-infected women experienced a significantly greater increase in BMI following ART initiation than men. These differences are a problem of clinical significance to women living with HIV.

12 September 2023 in Clinical Infectious Diseases
Verified
Journal Article
Closed access
SBSara Bares
Sara Bares
XWXingye Wu
Xingye Wu
KTKatherine Tassiopoulos
Katherine Tassiopoulos
JLJordan E Lake
Jordan E Lake
SKSusan L Koletar
Susan L Koletar
KEKristine M Erlandson
Kristine M Erlandson
Background: Weight gain following initiation of antiretroviral therapy (ART) is common. We assessed the impact of changes in weight in the year following ART initiation with subsequent cardiometabolic disease among AIDS Clinical Trials Group (ACTG) participants. Methods: Linear regression models were fit to examine the association between change in weight/waist circumference (WC) in weeks 0–48 and change in metabolic parameters in weeks 0–48 and 48–96. Cox proportional hazard models were fit to examine the association between changes in weight/WC in weeks 0–48 and diabetes mellitus (DM), metabolic syndrome, or cardiometabolic and cardiovascular events after week 48. Results: Participants (N = 2624) were primarily male (81%) and non-White (60%). Mean weight gain from 0–48 weeks was 3.6 kg (SD 7.3); 130 participants developed DM; 360 metabolic syndrome; 424 any cardiometabolic event; 28 any cardiovascular event, over 480 weeks of follow-up. In adjusted models, total cholesterol increased by 0.63 mg/dL (95% confidence interval [CI] [.38, .089]) and LDL by 0.39 mg/dL (0.19, 0.59) per 1 kg increase in weight from weeks 0 to48. Participants who experienced >10% weight gain (vs −5% to 5%) had an increased risk of DM (hazard ratio [HR] 2.01, 95% CI [1.30, 3.08]), metabolic syndrome (HR 2.24, 95% CI [1.55, 2.62]), and cardiometabolic outcomes (HR 1.54, 95% CI [1.22, 1.95]). Participants who lost more than 5% of their baseline weight had a lower risk of incident metabolic syndrome (HR 0.67, 95% CI [0.42, 1.07]). Trends for WC were similar. Conclusions: Weight and body composition changes in the first year following ART initiation are associated with contemporaneous changes in metabolic parameters and subsequent cardiometabolic disease.

14 November 2018 in PLOS ONE
Verified
Journal Article
Open access
PDF file
JBJordan M. Broekhuis
Jordan M. Broekhuis
KSKimberly K Scarsi
Kimberly K Scarsi
HSHarlan R Sayles
Harlan R Sayles
DKDonald G Klepser
Donald G Klepser
JHJoshua P Havens
Joshua P Havens
SBSara Bares
Sara Bares
Pharmacist provision of pre-exposure prophylaxis (PrEP) through collaborative practice agreements with physicians could expand access to people at risk for HIV. We characterized pharmacists’ familiarity with and willingness to provide PrEP services in Nebraska and Iowa. An invitation to complete an 18-question survey was emailed to 1,140 pharmacists in Nebraska and Iowa in June and July of 2016. Descriptive analyses and Pearson chi-square tests were used to determine to what extent demographics, familiarity and experience were associated with respondent willingness to provide PrEP. Wilcoxon rank-sum tests compared ages and years of experience between groups of respondents. One hundred forty pharmacists (12.3%) responded. Less than half were familiar with the use of PrEP (42%) or the CDC guidelines for its use (25%). Respondents who were older (p = .015) and in practice longer (p = .005) were less likely to be familiar with PrEP. Overall, 54% indicated they were fairly or very likely to provide PrEP services as part of a collaborative practice agreement and after additional training. While familiarity with PrEP use or guidelines did not affect respondents’ willingness to provide PrEP, respondents were more likely to provide PrEP with prior experience counseling HIV-infected patients on antiretroviral therapy (OR 2.43; p = 0.023) or PrEP (OR 4.67; p = 0.013), and with prior HIV-related continuing education (OR 2.77; p = 0.032). Pharmacist respondents in Nebraska and Iowa had limited familiarity and experience with PrEP, but most indicated willingness to provide PrEP through collaborative practice agreements after additional training. Provision of PrEP-focused continuing education may lead to increased willingness to participate in PrEP programs.

5 June 2020 in Current Infectious Disease Reports
Verified
Journal Article
Open access
PDF file
SBSara Bares
Sara Bares
SSSusan Swindells
Susan Swindells
Purpose of Review: Tuberculosis is the number one infectious killer of people with HIV worldwide, but it can be both prevented and treated. Prevention of tuberculosis by screening for and treating latent tuberculosis infection (LTBI), along with the initiation of antiretroviral therapy (ART), is the key component of HIV care. Recent Findings: While access to ART has increased worldwide, uptake and completion of LTBI treatment regimens among people living with HIV (PWH) are very poor. Concomitant TB-preventive therapy and ART are complex because of drug–drug interactions, but these can be managed. Recent clinical trials of shorter preventive regimens have demonstrated safety and efficacy in PWH with higher completion rates. More research is needed to guide TB-preventive therapy in children and in pregnant women, and for drug-resistant TB (DR-TB). Summary: Antiretroviral therapy and tuberculosis-preventive treatment regimens can be optimized to avoid drug–drug interactions, decrease pill burden and duration, and minimize side effects in order to increase adherence and treatment completion rates among PWH and LTBI.

3 September 2020 in Human Vaccines & Immunotherapeutics
Verified
Journal Article
Closed access
TJTanner M. Johnson
Tanner M. Johnson
DKDonald G. Klepser
Donald G. Klepser
SBSara Bares
Sara Bares
KSKimberly K. Scarsi
Kimberly K. Scarsi
People Living with HIV (PLWH) remain disproportionately susceptible to vaccine-preventable illnesses due to increased morbidity and mortality from common pathogens, increased transmission related to epidemiologic factors, and decreased vaccination rates. We aimed to describe patient-specific predictive factors that may impact adherence to the CDC’s recommended vaccination schedules in PLWH. We retrospectively evaluated adult PLWH in care at the University of Nebraska Medical Center’s HIV clinic and collected information related to demographics, clinic visits, vaccination status, and measures of HIV disease control. Patients were categorized as “Adherent” if they had received all vaccinations for which they were eligible and were categorized as “Non-Adherent” if they were deficient or delayed in receiving one or more vaccinations. Participant characteristics were compared between groups by multivariable logistic regression to identify predictors associated with vaccine schedule non-adherence. We evaluated 502 PLWH who met our inclusion criteria; 206 of these (41%) had received all eligible vaccinations, while 296 (59%) were missing one or more vaccinations. The mean age of participants was 48 years old, 76% were male, and 53% were white. Our participants had a median of 2.83 clinic visits per year and missed 8.3% of scheduled clinic visits. Factors associated with non-adherence to vaccination schedules included a high frequency of missed clinic appointments (>10%), men who have sex with men, and a CD4 count <200 cells/mm3. Knowledge of variables associated with vaccination rates may be beneficial in identifying patients at-risk for under-vaccination and designing targeted education programs for providers and patients.

12 November 2024 in Clinical Infectious Diseases
Verified
Journal Article
Closed access
JDJennifer M Davis
Jennifer M Davis
ARAadia Rana
Aadia Rana
PSPaul E Sax
Paul E Sax
SBSara Bares
Sara Bares
Long-acting injectable cabotegravir plus rilpivirine (LA CAB/RPV) is currently US Food and Drug Administration approved and Human Immunodeficiency Virus (HIV) treatment guideline endorsed as a switch strategy for patients with HIV (PWH) who are virologically suppressed on oral antiretroviral therapy without a history of treatment failure. Recent changes to the International Antiviral Society–USA and US Department of Health and Human Services’ Panel on Antiretroviral Guidelines recommend the consideration of LA CAB/RPV in select PWH with viremia who are unable to achieve suppression with oral antiretroviral therapy due to suboptimal medication adherence. In this article, we review the existing data on this off-label use of LA CAB/RPV, discuss the motivations and specific caveats implicit in the guideline change, and propose next steps in exploring this novel treatment in a vulnerable patient population.