The Global Profile of Breast Cancer: Exploring the Disease Epidemiology among International & Migrant Populations.

Examining the global occurrence and racial disparities in breast cancer is critical to our understanding of the disease etiology. Inflammatory breast cancer (IBC) is a rare and aggressive form of breast cancer, about which very little is known. Given the lack of comparative studies on breast cancer and inflammatory breast cancer on a global scale, this dissertation investigated trends in breast cancer in a population-based cancer registry in Gharbiah, Egypt. Furthermore, we utilized Surveillance, Epidemiology and End Results (SEER) registry data from California, Detroit and New Jersey to evaluate racial disparities in IBC, including among Arab Americans. Finally, this research focused on the lack of standardization in IBC diagnosis by comparing differing criteria for diagnosis to demonstrate the effect of differing criteria on estimating IBC occurrence. The findings from this dissertation demonstrate significant increases in breast cancer incidence in Egypt from 1999-2008, particularly among women 50 years and older; estrogen receptor negative tumors were over represented. These observed trends add to our overall understanding of the etiology of breast cancer and can be used to inform clinicians and policy makers in this region of the world. Furthermore, our research demonstrates that IBC occurrence may be more common among certain minority groups in the United States, including Arab American women. With the significant lack of epidemiologic data on IBC, this study represents important progress toward our understanding of this disease. Finally, our study results suggest for the first time, that the incidence of IBC is likely to be underestimated in the U.S. SEER registry using the current SEER coding guidelines. Emphasis must be placed on the documentation of clinical and pathological characteristics of IBC in the medical record, so that analysis of putative IBC subtypes will be possible and we can further evaluate and come to a consensus on the definition of IBC to be utilized in future research. This dissertation contributes to a better understanding of global heterogeneity in breast cancer and IBC and provides concrete scientific evidence in order to reduce the global burden of this disease.PHDEpidemiological ScienceUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/97974/1/kalamb_1.pd

A Comparison of Criteria to Identify Inflammatory Breast Cancer Cases from Medical Records and the Surveillance, Epidemiology and End Results Data base, 2007–2009

Inflammatory breast cancer ( IBC ) is a relatively rare and extremely aggressive form of breast cancer that is diagnosed clinically. Standardization of clinical diagnoses is challenging, both nationally and internationally; moreover, IBC coding definitions used by registries have changed over time. This study aimed to compare diagnostic factors of IBC reported in a U.S. Surveillance, Epidemiology, and End Results ( SEER ) registry to clinical criteria found in the medical records of all invasive breast cancer cases at a single institution. We conducted a medical record review of all female invasive breast cancers ( n  = 915) seen at an NCI‐designated comprehensive cancer center in Detroit from 2007 to 2009. IBC cases were identified based on the presence of the main clinical characteristics of the disease (erythema, edema, peau d'orange). We compared the proportion of IBC out of all breast cancers, using these clinical criteria and the standard SEER IBC codes. In the reviewed cases, the clinical criteria identified significantly more IBC cases ( n  = 74, 8.1%) than the standard IBC SEER definition ( n  = 19, 2.1%; p < 0.0001). No IBC cases were identified in the cancer center records using the SEER pathologic coding, which requires the diagnosis of inflammatory carcinoma on the pathology report, a notation that is rarely made. Emphasis must be placed on the documentation of clinical and pathologic characteristics of IBC in the medical record, so that analysis of putative IBC subtypes will be possible. Our results indicate the need for a consensus on the definition of IBC to be utilized in future research.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/106657/1/tbj12234.pd

Rural patient and provider perceptions of telehealth implemented during the COVID-19 pandemic

Abstract Background Understanding perceptions of telehealth  implementation from patients and providers can improve the utility and sustainability of these programs, particularly in under-resourced rural settings. The purpose of this study was to evaluate both patient and provider perceptions of telehealth visits in a large rural healthcare system during the COVID-19 pandemic. To promote sustainability of telehealth approaches, we also assessed whether the percentage of missed appointments differed between in-person and telehealth visits. Methods Using anonymous surveys, we evaluated patient preferences and satisfaction with telehealth visits from November 2020 -March 2021 and assessed perceptions of telehealth efficiency and value among rural providers from September–October 2020. We examined whether telehealth perceptions differed according to patients’ age, educational attainment, insurance status, and distance to clinical site and providers’ age and length of time practicing medicine using ANOVA test. We also examined whether the percentage of missed appointments differed between in-person and telehealth visits at a family practice clinic within the rural healthcare system from April to September 2020 using a Chi-square test. Results Over 73% of rural patients had favorable perceptions of telehealth visits, and satisfaction was generally higher among younger patients. Patients reported difficulty with scheduling follow-up appointments, lack of personal contact and technology challenges as common barriers. Over 80% of the 219 providers responding to the survey reported that telehealth added value to their practice, while 36.6% agreed that telehealth visits are more efficient than in-person visits. Perception of telehealth value and efficiency did not differ by provider age (p = 0.67 and p = 0.67, respectively) or time in practice (p = 0.53 and p = 0.44, respectively). Technology challenges for the patient (91.3%) and provider (45.1%) were commonly reported. The percentage of missed appointments was slightly higher for telehealth visits compared to in-person visits, but the difference was not statistically significant (8.7% vs. 8.0%; p = 0.39). Conclusions Telehealth perceptions were generally favorable among rural patients and providers, although satisfaction was lower among older patients and providers. Our findings suggest that telehealth approaches may add value and efficiency to rural clinical practice. However, technology issues for both patients and providers and gaps in care coordination need to be addressed to promote sustainability of telehealth approaches in rural practice

Tobacco Cessation Motivations, Preferences, and Barriers Among Rural Smokers: Implications for Optimizing Referrals in Clinical Practice

Introduction: Rural‒urban smoking disparities have widened in recent years because smoking prevalence reductions have been experienced disproportionately among urban adults. Tobacco cessation programs that work in urban settings may not be reaching rural smokers or may need tailoring to be effective. Identifying smoking cessation preferences and barriers among rural smokers can facilitate the implementation of acceptable programs to address rural smoking-related disparities. Thus, the aim of this study was to examine tobacco cessation motivations, preferences, and barriers among rural smokers and to assess smokers’ likelihood to use various types of tobacco cessation programs. Methods: Using a cross-sectional study design, we distributed a self-administered survey to 100 smokers during regularly scheduled healthcare appointments at 3 rural Michigan practices from June to August 2019. We examined differences in participant characteristics by the readiness to quit using chi-square/Fisher's exact tests and described cessation motivations, preferences, and barriers to tobacco cessation among rural smokers. Results: Participants reporting readiness to quit were less likely to have smoking allowed in their home (31.7% vs. 75.0%; p=0.003) and had a higher prevalence of anxiety (62.1% vs. 6.3%; p=0.0001) and depression (49.2% vs. 18.8%; p=0.04) than those not ready to quit. Preferences were higher for nicotine replacement medications and reward-based approaches, with only 10% of participants being likely to use telephone-based quitlines. Conclusions: These findings suggest that provider referrals to nicotine replacement medications and reward-based approaches can be used to enhance tobacco cessation among rural smokers

Characterizing inflammatory breast cancer among Arab Americans in the California, Detroit and New Jersey Surveillance, Epidemiology and End Results (SEER) registries (1988–2008)

Introduction: Inflammatory breast cancer (IBC) is characterized by an apparent geographical distribution in incidence, being more common in North Africa than other parts of the world. Despite the rapid growth of immigrants to the United States from Arab nations, little is known about disease patterns among Arab Americans because a racial category is rarely considered for this group. The aim of this study was to advance our understanding of the burden of IBC in Arab ethnic populations by describing the proportion of IBC among different racial groups, including Arab Americans from the Detroit, New Jersey and California Surveillance, Epidemiology and End Results (SEER) registries.Methods: We utilized a validated Arab surname algorithm to identify women of Arab descent from the SEER registries. Differences in the proportion of IBC out of all breast cancer and IBC characteristics by race and menopausal status were evaluated using chi-square tests for categorical variables, t-tests and ANOVA tests for continuous variables, and log-rank tests for survival data. We modeled the association between race and IBC among all women with breast cancer using hierarchical logistic regression models, adjusting for individual and census tract-level variables.Results: Statistically significant differences in the proportion of IBC out of all breast cancers by race were evident. In a hierarchical model, adjusting for age, estrogen and progesterone receptor, human epidermal growth receptor 2, registry and census-tract level education, Arab-Americans (OR=1.5, 95% CI=1.2,1.9), Hispanics (OR=1.2, 95% CI=1.1,1.3), Non-Hispanic Blacks (OR=1.3, 95% CI=1.2, 1.4), and American Indians/Alaskans (OR=1.9, 95% CI=1.1, 3.4) had increased odds of IBC, while Asians (OR=0.6, 95% CI=0.6, 0.7) had decreased odds of IBC as compared to Non-Hispanic Whites.Conclusions: IBC may be more common among certain minority groups, including Arab American women. Understanding the descriptive epidemiology of IBC by race may generate hypotheses about risk factors for this aggressive disease. Future research should focus on etiologic factors that may explain these differences

Implementation of Physical Activity Programs for Rural Cancer Survivors: Challenges and Opportunities

Physical activity after cancer diagnosis has been consistently associated with improvements in quality of life and prognosis. However, few cancer survivors meet physical activity recommendations, and adherence is even lower among those living in rural settings. The purpose of this quasi-experimental study was to evaluate the implementation of a clinic-based physical activity program for cancer survivors at a rural community oncology setting. We also examined changes in quality-of-life measures among 24 cancer survivors participating in the physical activity program and described challenges and opportunities to optimize future implementation efforts in rural settings. Significant pre- to post-program improvements in fatigue (5.5 to 6.8; p = 0.03), constipation (7.7 to 9.0; p = 0.02), pain (6.7 to 8.0; p = 0.007), and sleep quality (p = 0.008) were observed. Participants also reported improved nausea, stamina, depression, stress, and overall physical health after participation in the physical activity program, although the differences were not statistically significant (all p-values &gt; 0.13). However, the reach of the physical activity program was limited, with only 0.59% of cancer survivors participating. Fidelity to the physical activity program was relatively high, with 72.7% of survivors participating in at least five classes. Our findings suggest that physical activity programs in oncological settings may need tailoring to effectively reach rural cancer survivors

Trends in Breast Cancer Incidence Rates by Age and Stage at Diagnosis in Gharbiah, Egypt, over 10 Years (1999–2008)

Background. This study was undertaken to evaluate trends in breast cancer incidence in Egypt from 1999 to 2008 and to make projections for breast cancer occurrence for the years 2009–2015. Patients and Methods. We utilized joinpoint regression and average annual percent change (AAPC) measures with 95% confidence intervals (CI) to describe the trends in breast cancer incidence rates from the Gharbiah Cancer Registry by age and stage at diagnosis and to estimate expected breast cancer caseloads for 2009–2015. Results. From 1999 to 2008, the AAPC in breast cancer incidence rates in Gharbiah significantly increased among women 50 years and older and among localized tumors (AAPC %, 95% CI, 3.1% to 8.0%). Our results predict a significant increase in breast cancer caseloads from 2009 to 2015 among women aged 30–39 (AAPC %, 95% CI, 0.9% to 1.1%) and among women aged 40–49 years (AAPC %, 95% CI, 1.0% to 2.6%). Conclusion. These results have important implications for allocating limited resources, managing treatment needs, and exploring the consequences of prior interventions and/or changing risk factors in Egypt and other developing countries at the same stages of demographic and health transitions

Trends in Diet and Cancer Research : A Bibliometric and Visualization Analysis

Diet plays a critical role for patients across the cancer continuum. The World Cancer Research Fund International and the American Cancer Society have published evidence supporting the role of nutrition in cancer prevention. We conducted an analysis of the literature on dietary nutrients and cancer to uncover opportunities for future research. The objective of the bibliometric analysis was to describe trends in peer-reviewed publications on dietary components and cancer and to highlight research gaps. PubMed was queried for manuscripts with diet- and cancer-related keywords and Medical Subject Headings (MeSH) terms. Metadata covering 99,784 publications from 6469 journals were analyzed to identify trends since 1970 on diet topics across 19 tumor types. Publications focused largely on breast, colorectal, and liver cancer, with fewer papers linking diet with other cancers such as brain, gallbladder, or ovarian. With respect to “unhealthy” diets, many publications focused on high-fat diets and alcohol consumption. The largest numbers of publications related to “healthy” diets examined the Mediterranean diet and the consumption of fruits and vegetables. These findings highlight the need for additional research focused on under-investigated cancers and dietary components, as well as dietary studies during cancer therapy and post-therapy, which may help to prolong survivorship.Medicine, Faculty ofScience, Irving K. Barber Faculty of (Okanagan)Non UBCBiology, Department of (Okanagan)Medicine, Department ofReviewedFacultyResearche

The impact of race and ethnicity in breast cancer-disparities and implications for precision oncology

Breast cancer is the most commonly diagnosed cancer worldwide and is one of the leading causes of cancer death. The incidence, pathological features, and clinical outcomes in breast cancer differ by geographical distribution and across racial and ethnic populations. Importantly, racial and ethnic diversity in breast cancer clinical trials is lacking, with both Blacks and Hispanics underrepresented. In this forum article, breast cancer researchers from across the globe discuss the factors contributing to racial and ethnic breast cancer disparities and highlight specific implications of precision oncology approaches for equitable provision of breast cancer care to improve outcomes and address disparities.