Browsing by Author "Provenzale, Dawn"
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Item Open Access Barriers and Facilitators to Adoption of Genomic Services for Colorectal Care within the Veterans Health Administration.(J Pers Med, 2016-04-28) Sperber, Nina R; Andrews, Sara M; Voils, Corrine I; Green, Gregory L; Provenzale, Dawn; Knight, SaraWe examined facilitators and barriers to adoption of genomic services for colorectal care, one of the first genomic medicine applications, within the Veterans Health Administration to shed light on areas for practice change. We conducted semi-structured interviews with 58 clinicians to understand use of the following genomic services for colorectal care: family health history documentation, molecular and genetic testing, and genetic counseling. Data collection and analysis were informed by two conceptual frameworks, the Greenhalgh Diffusion of Innovation and Andersen Behavioral Model, to allow for concurrent examination of both access and innovation factors. Specialists were more likely than primary care clinicians to obtain family history to investigate hereditary colorectal cancer (CRC), but with limited detail; clinicians suggested templates to facilitate retrieval and documentation of family history according to guidelines. Clinicians identified advantage of molecular tumor analysis prior to genetic testing, but tumor testing was infrequently used due to perceived low disease burden. Support from genetic counselors was regarded as facilitative for considering hereditary basis of CRC diagnosis, but there was variability in awareness of and access to this expertise. Our data suggest the need for tools and policies to establish and disseminate well-defined processes for accessing services and adhering to guidelines.Item Open Access Cardiovascular disease-related chronic conditions among Veterans Affairs nonmetastatic colorectal cancer survivors: a matched case-control analysis.(Cancer management and research, 2019-01) Zullig, Leah L; Smith, Valerie A; Lindquist, Jennifer H; Williams, Christina D; Weinberger, Morris; Provenzale, Dawn; Jackson, George L; Kelley, Michael J; Danus, Susanne; Bosworth, Hayden BPurpose
The growing number of colorectal cancer (CRC) survivors often have multiple chronic conditions. Comparing nonmetastatic CRC survivors and matched noncancer controls, our objectives were to determine the odds of CRC survivors being diagnosed with cardiovascular disease (CVD)-related chronic conditions and their likelihood of control during the year after CRC diagnosis.Patients and methods
We retrospectively identified patients diagnosed with nonmetastatic CRC in the Veterans Affairs health care system from fiscal years 2009 to 2012 and matched each with up to 3 noncancer control patients. We used logistic regression to assess differences in the likelihood of being diagnosed with CVD-related chronic conditions and control between nonmetastatic CRC survivors and noncancer controls.Results
We identified 9,758 nonmetastatic CRC patients and matched them to 29,066 noncancer controls. At baseline, 69.4% of CRC survivors and their matched controls were diagnosed with hypertension, 52.4% with hyperlipidemia, and 36.7% with diabetes. Compared to matched noncancer controls, CRC survivors had 57% higher odds of being diagnosed with hypertension (OR=1.57, 95% CI=1.49-1.64) and 7% higher odds of controlled blood pressure (OR=1.07, 95% CI 1.02, 1.13) in the subsequent year. Compared to matched noncancer control patients, CRC survivors had half the odds of being diagnosed with hyperlipidemia (OR=0.50, 95% CI=0.48-0.52) and lower odds of low-density lipoprotein (LDL) control (OR 0.88, 95% CI 0.81-0.94). There were no significant differences between groups for diabetes diagnoses or control.Conclusion
Compared to noncancer controls, nonmetastatic CRC survivors have 1) greater likelihood of being diagnosed with hypertension and worse blood pressure control in the year following diagnosis; 2) lower likelihood of being diagnosed with hyperlipidemia or LDL control; and 3) comparable diabetes diagnoses and control. There may be a need for hypertension control interventions targeting cancer survivors.Item Open Access Characterizing chronological accumulation of comorbidities in healthy veterans: a computational approach.(Scientific reports, 2021-04-14) Hong, Julian C; Hauser, Elizabeth R; Redding, Thomas S; Sims, Kellie J; Gellad, Ziad F; O'Leary, Meghan C; Hyslop, Terry; Madison, Ashton N; Qin, Xuejun; Weiss, David; Bullard, A Jasmine; Williams, Christina D; Sullivan, Brian A; Lieberman, David; Provenzale, DawnUnderstanding patient accumulation of comorbidities can facilitate healthcare strategy and personalized preventative care. We applied a directed network graph to electronic health record (EHR) data and characterized comorbidities in a cohort of healthy veterans undergoing screening colonoscopy. The Veterans Affairs Cooperative Studies Program #380 was a prospective longitudinal study of screening and surveillance colonoscopy. We identified initial instances of three-digit ICD-9 diagnoses for participants with at least 5 years of linked EHR history (October 1999 to December 2015). For diagnoses affecting at least 10% of patients, we calculated pairwise chronological relative risk (RR). iGraph was used to produce directed graphs of comorbidities with RR > 1, as well as summary statistics, key diseases, and communities. A directed graph based on 2210 patients visualized longitudinal development of comorbidities. Top hub (preceding) diseases included ischemic heart disease, inflammatory and toxic neuropathy, and diabetes. Top authority (subsequent) diagnoses were acute kidney failure and hypertensive chronic kidney failure. Four communities of correlated comorbidities were identified. Close analysis of top hub and authority diagnoses demonstrated known relationships, correlated sequelae, and novel hypotheses. Directed network graphs portray chronologic comorbidity relationships. We identified relationships between comorbid diagnoses in this aging veteran cohort. This may direct healthcare prioritization and personalized care.Item Open Access Chronic disease management perspectives of colorectal cancer survivors using the Veterans Affairs healthcare system: a qualitative analysis.(BMC health services research, 2018-03) Zullig, Leah L; Goldstein, Karen M; Bosworth, Hayden B; Andrews, Sara M; Danus, Susanne; Jackson, George L; Provenzale, Dawn; Weinberger, Morris; Kelley, Michael J; Voils, Corrine IBackground
Colorectal cancer (CRC) is the third most commonly diagnosed cancer in the US. CRC survivors may have complex healthcare needs requiring care from both specialists and primary care. Our objective was to understand how CRC survivors perceive their survivorship care, especially management of their cardiovascular-related chronic diseases.Methods
We identified patients diagnosed with non-metastatic CRC between 10/1/2007 and 12/31/2015 at Veterans Affairs Medical Centers in North Carolina or Virginia. In 2016, we conducted telephone-based, semi-structured interviews to assess survivors' experiences with cancer survivorship and changes in health priorities. Interviews were conducted until thematic saturation was reached. Interviews were audio-recorded, transcribed, and coded.Results
The 25 participants were, on average, 64 years old and approximately 4 years post-CRC diagnosis at the time of interview; most were white (60%), male (92%), and diagnosed with colon cancer (64%) as opposed to rectal cancer. CRC survivors reported: (1) a shift in focus from surviving cancer to reducing cardiovascular disease risk (e.g., by managing weight); (2) challenges with taking medications for CVD-related conditions; (3) new recognition of the importance of engaging with primary care providers.Conclusions
Experiences with cancer shapes how survivors view their health. Management of cardiovascular-related chronic disease is important to veteran CRC survivors. There is a need to deliver cardiovascular disease risk reduction programs tailored for CRC survivors.Item Open Access Colorectal Cancer Statistics From the Veterans Affairs Central Cancer Registry.(Clinical colorectal cancer, 2016-12) Zullig, Leah L; Smith, Valerie A; Jackson, George L; Danus, Susanne; Schnell, Merritt; Lindquist, Jennifer; Provenzale, Dawn; Weinberger, Morris; Kelley, Michael J; Bosworth, Hayden BBackground
Colorectal cancer (CRC) is a common and potentially deadly disease. Although the United States has robust cancer data reporting, information from the Department of Veterans Affairs (VA) healthcare system has often been underrepresented in national cancer data sources. We describe veterans with incident CRC in terms of their patient and tumor characteristics and mortality.Patients and methods
Patients diagnosed or treated with CRC at any VA institution in the fiscal years 2009 to 2012 were identified using 3 data sources: (1) VA Central Cancer Registry (VACCR); (2) VA Corporate Data Warehouse; and (3) VA Reports and Measures Portal. The CRC frequencies within the VA population and survival curves were examined descriptively and compared with the national projections using Surveillance, Epidemiology, and End Results program data.Results
A total of 12,551 veterans with CRC were included in the present analysis. The median age at diagnosis was 65.5 years. Approximately 97% (n = 12,229) of the CRC cases were diagnosed among men. Approximately 44% (n = 5517) of the patients were diagnosed with localized disease. The 3-year survival rate was associated with age (P < .01) and stage (P < .01) at diagnosis. We identified a possible decrease in VA CRC incidence over time.Conclusion
Although the VA CRC patient population was heavily skewed toward the male gender, the patient and tumor characteristics were similar between the incident CRC cases reported by the VACCR and those reported to the Surveillance, Epidemiology, and End Results program. This suggests that research findings resulting from the VACCR might have applicability beyond the VA healthcare system setting.Item Open Access Correction to: Identifying Nonalcoholic Fatty Liver Disease Advanced Fibrosis in the Veterans Health Administration.(Digestive diseases and sciences, 2018-07-24) Patel, Yuval A; Gifford, Elizabeth J; Glass, Lisa M; Turner, Marsha J; Han, Byungjoo; Moylan, Cynthia A; Choi, Steve; Suzuki, Ayako; Provenzale, Dawn; Hunt, Christine MThe original version of the article unfortunately contained errors in Table 3, Risk Factor column headings "Age > 50 (n = 115)," "Age > 50-64 (n = 154)," and "Age > 65 + (n = 60)."Item Open Access The accuracy and completeness for receipt of colorectal cancer care using Veterans Health Administration administrative data.(BMC Health Serv Res, 2016-02-11) Sherer, Eric A; Fisher, Deborah A; Barnd, Jeffrey; Jackson, George L; Provenzale, Dawn; Haggstrom, David ABACKGROUND: The National Comprehensive Cancer Network and the American Society of Clinical Oncology have established guidelines for the treatment and surveillance of colorectal cancer (CRC), respectively. Considering these guidelines, an accurate and efficient method is needed to measure receipt of care. METHODS: The accuracy and completeness of Veterans Health Administration (VA) administrative data were assessed by comparing them with data manually abstracted during the Colorectal Cancer Care Collaborative (C4) quality improvement initiative for 618 patients with stage I-III CRC. RESULTS: The VA administrative data contained gender, marital, and birth information for all patients but race information was missing for 62.1% of patients. The percent agreement for demographic variables ranged from 98.1-100%. The kappa statistic for receipt of treatments ranged from 0.21 to 0.60 and there was a 96.9% agreement for the date of surgical resection. The percentage of post-diagnosis surveillance events in C4 also in VA administrative data were 76.0% for colonoscopy, 84.6% for physician visit, and 26.3% for carcinoembryonic antigen (CEA) test. CONCLUSIONS: VA administrative data are accurate and complete for non-race demographic variables, receipt of CRC treatment, colonoscopy, and physician visits; but alternative data sources may be necessary to capture patient race and receipt of CEA tests.Item Open Access Transportation as a barrier to colorectal cancer care.(BMC health services research, 2021-04) Jazowski, Shelley A; Sico, Isabelle P; Lindquist, Jennifer H; Smith, Valerie A; Bosworth, Hayden B; Danus, Susanne; Provenzale, Dawn; Kelley, Michael J; Zullig, Leah LBackground
Transportation barriers limit access to cancer care services and contribute to suboptimal clinical outcomes. Our objectives were to describe the frequency of Veterans reporting and the factors associated with transportation barriers to or from colorectal cancer (CRC) care visits.Methods
Between November 2015 and September 2016, Veterans with incident stage I, II, or III CRC completed a mailed survey to assess perceived barriers to recommended care. Participants who reported difficulty with transportation to or from CRC care appointments were categorized as experiencing transportation barriers. We assessed pairwise correlations between transportation barriers, transportation-related factors (e.g., mode of travel), and chaotic lifestyle (e.g., predictability of schedules), and used logistic regression to examine the association between the reporting of transportation difficulties, distance traveled to the nearest Veterans Affairs (VA) facility, and life chaos.Results
Of the 115 Veterans included in this analysis, 18% reported experiencing transportation barriers. Distance to the VA was not strongly correlated with the reporting of transportation barriers (Spearman's ρ = 0.12, p = 0.19), but chaotic lifestyle was both positively and significantly correlated with experiencing transportation barriers (Spearman's ρ = 0.22, p = 0.02). Results from the logistic regression model modestly supported the findings from the pairwise correlations, but were not statistically significant.Conclusions
Transportation is an important barrier to or from CRC care visits, especially among Veterans who experience greater life chaos. Identifying Veterans who experience chaotic lifestyles would allow for timely engagement in behavioral interventions (e.g., organizational skills training) and with support services (e.g., patient navigation).