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"Sheppard, Vanessa"
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Association of poverty-income ratio with cardiovascular disease and mortality in cancer survivors in the United States
2024
Lower income is associated with high incident cardiovascular disease (CVD) and mortality. CVD is an important cause of morbidity and mortality in cancer survivors. However, there is limited research on the association between income, CVD, and mortality in this population.
This study utilized nationally representative data from the National Health and Nutrition Examination Survey (NHANES), a cross-sectional survey evaluating the health and nutritional status of the US population. Our study included NHANES participants aged ≥20 years from 2003-2014, who self-reported a history of cancer. We evaluated the association between income level, prevalence of CVD, and all-cause mortality. All-cause mortality data was obtained through public use mortality files. Income level was assessed by poverty-income ratio (PIR) that was calculated by dividing family (or individual) income by poverty guideline. We used multivariable-adjusted Cox proportional hazard models through a backward elimination method to evaluate associations between PIR, CVD, and all-cause mortality in cancer survivors.
This cohort included 2,464 cancer survivors with a mean age of 62 (42% male) years. Compared with individuals with a higher PIR tertiles, those in the lowest PIR tertile had a higher rate of pre-existing CVD and post-acquired CVD. In participants with post-acquired CVD, the lowest PIR tertile had over two-fold increased risk mortality (Hazard Ratio (HR) = 2.17; 95% CI: 1.27-3.71) when compared to the highest PIR tertile. Additionally, we found that PIR was as strong a predictor of mortality in cancer survivors as CVD. In patients with no CVD, the lowest PIR tertile continued to have almost a two-fold increased risk of mortality (HR = 1.72; 95% CI: 1.69-4.35) when compared to a reference of the highest PIR tertile.
In this large national study of cancer survivors, low PIR is associated with a higher prevalence of CVD. Low PIR is also associated with an increased risk of mortality in cancer survivors, showing a comparable impact to that of pre-existing and post-acquired CVD. Urgent public health resources are needed to further study and improve screening and access to care in this high-risk population.
Journal Article
Neighborhood disadvantage and biological aging biomarkers among breast cancer patients
2022
Living in a disadvantaged neighborhood is associated with adverse clinical outcomes among breast cancer patients, but the underlying pathway is still unclear. Limited evidence has suggested that accelerated biological aging may play an important role. In this study, using a sub-sample of 906 women with newly diagnosed breast cancer at M.D. Anderson, we examined whether levels of selected markers of biological aging (e.g., allostatic load, telomere length, and global DNA methylation) were affected by neighborhood disadvantage. The Area Deprivation Index was used to determine the neighborhood disadvantage. Based on the median ADI at the national level, the study population was divided into low and high ADI groups. Overall, breast cancer patients from the high ADI group were more likely to be younger and non-Hispanic Black than those from the low ADI group (
P
< 0.001, respectively). They were also more likely to have higher grade and poorly differentiated breast tumors (
P
= 0.029 and 0.019, respectively). For the relationship with markers, compared to the low ADI group, high ADI group had higher median levels of allostatic load (
P
= 0.046) and lower median levels of global DNA methylation (
P
< 0.001). Compared to their counterparts, those from the high ADI group were 20% more likely to have increased allostatic load and 51% less likely to have increased levels of global DNA methylation. In summary, we observed that levels of allostatic load and global DNA methylation are influenced by neighborhood disadvantage among breast cancer patients.
Journal Article
Discrepancy between perceived diet quality and actual diet quality among US adult cancer survivors
ObjectivesLittle is known about cancer survivors’ self-perception of their dietary quality compared with their measured diet quality and how those perceptions may influence their actual diet. This study aimed to fill this gap using national large datasets.MethodsNational Health and Nutrition Examination Survey (NHANES) data from 2005 to 2014 were used. The healthy eating index (HEI) based on 24-h dietary recall was used to measure diet quality. Logistic regression models were fit to examine the influence of the misperception of eating healthiness on diet quality.ResultsThe agreement between self-perceived and actual diet quality was low (Kappa = 0.06, 95% CI: 0.02, 0.09) among cancer survivors. Over-rating diet quality was associated with a 5.39 lower total HEI score (P < 0.0001), 1.00 lower HEI score for empty calorie intake (P = 0.0028), 0.15 lower score for vegetable intake (P = 0.108), and 0.29 lower score for fruit intake; under-rating one’s diet quality was associated with a 7.12 higher total HEI score (P < 0.0001), 2.57 higher HEI score for empty calorie intake (P < 0.0001), 0.02 higher score for vegetable intake (P = 0.904), and 0.84 higher score for fruit intake (P = 0.001). Our multinomial regression estimates suggested that each 10-year increase in age was associated with an increase in the odds of being an over-rater vs. a correct-rater (OR: 11.4, 95% CI: 10.01, 10.2). Hispanics were more likely than non-Hispanic whites to over-rate their diet quality (OR: 1.792, 95% CI: 1.062, 3.024).ConclusionsTailored nutrition interventions and guidance aimed at reducing the divergence between self-assessed and actual diet quality have the potential to improve cancer survivorship and narrow racial/ethnic and socioeconomic disparities.
Journal Article
Race, Ethnicity, and Pain among the U.S. Adult Population
2010
There is reliable evidence that racial/ethnic minorities suffer disproportionately from unrelieved pain compared with Whites. Several factors may contribute to disparities in pain management. Understanding how these factors influence effective pain management among racial/ethnic minority populations would be helpful for developing tailored interventions designed to eliminate racial/ethnic disparities in pain management. We conducted a review of the literature to explore the interaction between race/ethnicity, cultural influences; pain perception, assessment, and communication; provider and patient characteristics; and health system factors and how they might contribute to racial/ethnic disparities in receipt of effective pain management.
The published literature from 1990-2008 was searched for articles with data on racial/ethnic patterns of pain management as well as racially, ethnically, and culturally-specific attitudes toward pain, pain assessment, and communication; provider prescribing patterns; community access to pain medications; and pain coping strategies among U.S. adults.
The literature suggests that racial/ethnic disparities in pain management may operate through limited access to health care and appropriate analgesics; patient access to or utilization of pain specialists; miscommunication and/or misperceptions about the presence and/or severity of pain; patient attitudes, beliefs, and behaviors that influence the acceptance of appropriate analgesics and analgesic doses; and provider attitudes, knowledge and beliefs about patient pain.
Journal Article
A Pilot Study: Adaptation Phase of the PROMIS Women Education Program—Promoting Cervical Cancer Prevention Methods Among Muslim Women in Virginia
by
Namoos, Asmaa
,
Sheppard, Vanessa
,
Abosamak, NourEldin
in
Adult
,
Cancer screening
,
Cervical cancer
2025
Purpose The purpose of this comprehensive research project is to address the notable disparities in cervical cancer prevention experienced by Muslim women in Virginia, compared with non‐Muslim women. Low participation in prevention and control activities, such as cervical cancer screening and HPV vaccination, often leads to their diagnosis with late‐stage cervical cancer. The long‐term research goal is to develop a culturally appropriate and religiously adapted intervention program to promote cervical cancer screening and prevention among Muslim women. Driven by an integrative conceptual model, the primary aim is to adapt existing evidence‐based educational materials to create a religiously adapted and culturally appropriate intervention program to improve cancer screening rates among Muslim women in the U.S. Methods The study adapted existing evidence‐based educational materials to fit religious and cultural contexts, facilitated through focus group sessions with 10 Muslim women aged 18 and older. Additionally, interviews with five Muslim religious leaders provided feedback on the materials. The PEN‐3 model was employed to categorize and analyze cultural factors influencing health behaviors. Results Preliminary findings from the thematic analysis, structured around the three domains of cultural identity, relationships, and expectations, and cultural empowerment, indicated a strong positive reception and increased awareness among participants. Key themes identified include the importance of culturally sensitive health messages, the influential role of community leaders, and the need for educational materials that consider cultural and gender dynamics. Data saturation was reached after the second focus group session, as no new themes emerged in participating discussions. Additionally, the Community Advisory Board (CAB) actively participated in the refinement process by reviewing the educational materials alongside the research team, ensuring that the content was culturally appropriate and aligned with community needs. Participants demonstrated a heightened readiness to engage in preventive behaviors, highlighting the effectiveness of a culturally tailored educational approach.
Journal Article
Medical Mistrust Influences Black Women’s Level of Engagement in BRCA1/2 Genetic Counseling and Testing
by
Sheppard, Vanessa B.
,
LaVeist, Thomas
,
Mays, Darren
in
African Americans
,
breast cancer
,
genetics
2013
Clinical evidence supports the value of BRCA1/2 genetic counseling and testing for managing hereditary breast and ovarian cancer risk; however, BRCA1/2 genetic counseling and testing are underutilized among black women, and reasons for low use remain elusive. We examined the potential influence of sociocultural factors (medical mistrust, concerns about genetic discrimination) on genetic counseling and testing engagement in a sample of 100 black women at increased risk for carrying a BRCA1/2 mutation. Eligible participants fell into 1 of 3 groups: (1) healthy women with at least 1 first-degree relative affected by breast and/or ovarian cancer, (2) women diagnosed with breast cancer at age less than or equal to 50 years, and (3) women diagnosed with breast and/or ovarian cancer at age greater than or equal to 50 years with either 1 first-degree relative or 2 second-degree relatives with breast and/or ovarian cancer. Participants were recruited from clinical and community settings and completed a semistructured interview. Study variable relationships were examined using bivariate tests and multivariate regression analysis. As expected, genetic counseling and testing engagement among this sample was low (28%). After accounting for sociodemographic factors and self-efficacy (β = 0.37, p < .001), women with higher medical mistrust had lower genetic counseling and testing engagement (β = -0.26, p < .01). Community-level and individual interventions are needed to improve utilization of genetic counseling and testing among underserved women. Along with trust building between patients and providers, strategies should enhance women’s personal confidence. The impact of medical mistrust on the realization of the benefits of personalized medicine in minority populations should be further examined in future studies.
Journal Article
Racial disparities in opioid prescription and pain management among breast cancer survivors
by
Sheppard, Vanessa B.
,
Bandyopadhyay, Dipankar
,
Sutton, Arnethea L.
in
Analgesics, Opioid - therapeutic use
,
Body mass index
,
Breast cancer
2023
Background We examined whether there are racial disparities in pain management, opioid medicine prescriptions, symptom severity, and quality of life constructs in breast cancer survivors. Methods We conducted a secondary analysis of longitudinal data from the Women's Hormonal Therapy Initiation and Persistence (WHIP) study (n = 595), a longitudinal study of hormonal receptor‐positive breast cancer survivors. Upon study enrollment, patients completed a survey assessing an array of psychological, behavioral, and treatment outcomes, including adjuvant endocrine therapy (AET)‐induced symptoms, and provided a saliva biospecimen. Opioid prescription records were extracted from the health maintenance organizations (HMOs) pharmacy database. The final analytic sample included women with complete HMO pharmacy records for 1 year. Results There were 251 eligible patients, of which 169 (67.3%) were White. The average age was 61.09 years old (SD = 11.07). One hundred seventy‐two patients (68.5%) had received at least one opioid medication and 37.1% were prescribed opioids longer than 90 days (n = 93). Sixty‐four Black patients (78%) had a record of being prescribed with opioids compared to 64% of White patients (n = 108, p = 0.03). Black patients reported worse vasomotor, neuropsychological, and gastrointestinal symptoms, as well as lower quality of life and greater healthcare discrimination than White patients (p's < 0.05). Black patients were more likely to be prescribed opioids for 90 days or longer compared to White patients, when controlling for age, marital status, income, body mass index (BMI), cancer stage, and chemotherapy status (adjusted Odds Ratio = 2.72, p = 0.014). Conclusion Findings indicate that there are racial differences in opioid prescriptions supplied for pain management and symptomatic outcomes. Future research is needed to understand the causes of disparities in cancer pain management and symptomatic outcomes. We found racial disparities in opioid prescriptions and symptomatic outcomes among cancer patients. Black cancer patients were more likely to be prescribed opioids compared to White patients. Black patients reported worse vasomotor, neuropsychological, and gastrointestinal symptoms, as well as lower quality of life than White patients.
Journal Article
Medical Mistrust in Black Breast Cancer Patients: Acknowledging the Roles of the Trustor and the Trustee
2019
Studies indicate that Black patients report higher medical mistrust compared to their White counterparts. However, little is known about factors associated with higher medical mistrust among Black breast cancer patients. We examined predictors of medical mistrust and relationships between medical mistrust, subscales of mistrust, and process of care factors to identify opportunities to promote positive healthcare interactions between the trustees (e.g., providers) and Black breast cancer patients, or the trustors. A secondary analysis was conducted of survey data from 210 Black women with confirmed diagnosis of invasive breast cancer. Participants completed telephone surveys consisting of questions pertaining to sociodemographics, attitudes, and beliefs about medical care and breast cancer treatments. Multiple linear regression determined factors associated with medical mistrust and mistrust subscales. Most participants (61%) were over the age of 50 and currently single (64.8%). Women with greater medical mistrust reported less satisfaction with the trustee’s technical ability (p < 0.0001) and greater satisfaction with their own propensity to access care (p < 0.05). Additionally, women with public insurance demonstrated greater mistrust (p < 0.01) and suspicion (p < 0.05) than women with private insurance, and women with less education reported greater perceived discrimination than women who have at least a bachelor’s degree. Findings from this study may inform future endeavors to educate providers on ways to effectively interact with and treat Black breast cancer patients. Opportunities to develop interventions that address and tackle issues of mistrust as reported by Black patients may contribute to ongoing efforts to reduce health disparities.
Journal Article
Health disparities and equity in the era of COVID-19
by
Namoos, Asmaa
,
Nana-Sinkam, Patrick
,
Sheppard, Vanessa
in
clinical and translational research
,
Coronaviruses
,
COVID-19
2021
Over the last year, COVID-19 has emerged as a highly transmissible and lethal infection. As we address this global pandemic, its disproportionate impact on Black, Indigenous, and Latinx communities has served to further magnify the health inequities in access and treatment that persist in our communities. These sobering realities should serve as the impetus for reexamination of the root causes of inequities in our health system. An increased commitment to strategic partnerships between academic and nonacademic health systems, industry, local communities, and policy-makers may serve as the foundation. Here, we examine the impact of the recent COVID-19 pandemic on health care inequities and propose a strategic roadmap for integration of clinical and translational research into our understanding of health inequities.
Journal Article
Disparities in Breast Cancer Surgery Delay: The Lingering Effect of Race
by
Sheppard, Vanessa B.
,
Snead, Felicia
,
Onyewu, S.
in
Adult
,
African Americans - statistics & numerical data
,
Aged
2015
Background
Delays to surgical breast cancer treatment of 90 days or more may be associated with greater stage migration. We investigated racial disparities in time to receiving first surgical treatment in breast cancer patients.
Methods
Insured black (56 %) and white (44 %) women with primary breast cancer completed telephone interviews regarding psychosocial (e.g., self-efficacy) and health care factors (e.g., communication). Clinical data were extracted from medical charts. Time to surgery was measured as the days between diagnosis and definitive surgical treatment. We also examined delays of more than 90 days. Unadjusted hazard ratios (HRs) examined univariate relationships between delay outcomes and covariates. Cox proportional hazard models were used for multivariate analyses.
Results
Mean time to surgery was higher in blacks (mean 47 days) than whites (mean 33 days;
p
= .001). Black women were less likely to receive therapy before 90 days compared to white women after adjustment for covariates (HR .58; 95 % confidence interval .44, .78). Health care process factors were nonsignificant in multivariate models. Women with shorter delay reported Internet use (vs. not) and underwent breast-conserving surgery (vs. mastectomy) (
p
< .01).
Conclusions
Prolonged delays to definitive breast cancer surgery persist among black women. Because the 90-day interval has been associated with poorer outcomes, interventions to address delay are needed.
Journal Article