Cardiovascular disease-related chronic conditions among Veterans Affairs nonmetastatic colorectal cancer survivors: a matched case-control analysis.
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2019-01
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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.Type
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Zullig, Leah L, Valerie A Smith, Jennifer H Lindquist, Christina D Williams, Morris Weinberger, Dawn Provenzale, George L Jackson, Michael J Kelley, et al. (2019). Cardiovascular disease-related chronic conditions among Veterans Affairs nonmetastatic colorectal cancer survivors: a matched case-control analysis. Cancer management and research, 11. pp. 6793–6802. 10.2147/cmar.s191040 Retrieved from https://hdl.handle.net/10161/29873.
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Scholars@Duke
![Zullig](https://scholars.duke.edu/profile-images/thumbnail200/0453220.jpg)
Leah L Zullig
Leah L. Zullig, PhD, MPH is a health services researcher and an implementation scientist. She is a Professor in the Duke Department of Population Health Sciences and an investigator with the Center of Innovation to Accelerate Discovery and Practice Transformation (ADAPT) at the Durham Veterans Affairs Health Care System. Dr. Zullig’s overarching research interests address three domains: improving cancer care delivery and quality; promoting cancer survivorship and chronic disease management; and improving medication adherence. Throughout these three area of foci Dr. Zullig uses an implementation science lens with the goal of providing equitable care for all by implementing evidence-based practices in a variety of health care environments. She has authored over 150 peer-reviewed publications.
Dr. Zullig completed her BS in Health Promotion, her MPH in Public Health Administration, and her PhD in Health Policy.
Areas of expertise: Implementation Science, Health Measurement, Health Policy, Health Behavior, Telehealth, and Health Services Research
![Smith](https://scholars.duke.edu/profile-images/thumbnail200/0497719.jpg)
Valerie A. Smith
Valerie A. Smith, DrPH, is an Associate Professor in the Duke University Department of Population Health Sciences and Senior Research Director of the Biostatistics Core at the Durham Veterans Affairs Medical Center's Center of Innovation. Her methodological research interests include: methods for semicontinuous and zero-inflated data, economic modeling methods, causal inference methods, observational study design, and longitudinal data analysis. Her current methodological research has focused on the development of marginalized models for semicontinuous data.
Dr. Smith works largely in collaboration with a multidisciplinary team of researchers, with a focus on health policy interventions, health care utilization and expenditure patterns, program and policy evaluation, obesity and weight loss, bariatric surgery evaluation, and family caregiver supportive services.
Areas of expertise: Biostatistics, Health Services Research, Health Economics, and Health Policy
![Williams](https://scholars.duke.edu/profile-images/thumbnail200/0417151.jpg)
Christina D Williams
![Jackson](https://scholars.duke.edu/profile-images/thumbnail200/0311629.jpg)
George Lee Jackson
Areas of expertise: Epidemiology, Health Services Research, and Implementation Science
George L. Jackson, Ph.D., MHA is a healthcare epidemiologist and implementation scientist with a background in health administration. He joined the faculty of the UT Southwestern Medical Center in February of 2023 as a Professor and Director of the Advancing Implementation & Improvement Science Program in the Peter O'Donnell Jr. School of Public Health. Dr. Jackson is also a Veterans Affairs (VA) Health Services Research & Development (HSR&D) Research Health Scientist who works with the VA healthcare systems in both Durham, NC and Dallas, TX. He is the Director of the Implementation and Improvement Science Lab/Core at the Durham VA Center of Innovation to Accelerate Discovery and Practice Transformation (ADAPT). Additionally, he is a co-leader of a cooperative effort between the Dallas VA and Program on Implementation and Improvement Science designed to enhance the infrastructure for partnered health services and other research across the Dallas VA and UT Southwestern focused on enhancing the health and healthcare of Veterans in North Texas and across the Nation.
The UT Southwestern Advancing Implementation & Improvement Science Program seeks to further enhance collaborations between the UT Southwestern and affiliated health systems and community partners in the pursuit of common missions to enhance the health and healthcare of the people of North Texas. The goal is to develop a system to identify potentially successful projects using implementation and improvement science – which uses rigorous, data-driven research to expand programs and improve a community’s health.
Dr. Jackson’s own research and evaluation efforts focus on the development, testing, and implementation of team-based approaches to address the treatment and prevention of chronic conditions such as diabetes, hypertension, and cancer. He has also evaluated efforts to enhance the organization of mental health care. As an implementation scientist, Dr. Jackson studies strategies focused on the adoption and spread of evidence-informed practices across large health systems. He is currently the corresponding principal investigator for two VA program grants focused on the process of identifying, replicating, and spreading innovations across large healthcare systems. These include the Spreading Healthcare Access, Activities, Research and Knowledge (SHAARK) partnered evaluation of the Veterans Health Administration (VHA) Diffusion of Excellence program and the Dynamic Diffusion Network (DDN) QUERI Program, both funded by the VA Quality Enhancement Research Initiative (QUERI).
Dr. Jackson received his Doctor of Philosophy (Ph.D.) in epidemiology, Master of Health Administration (MHA), and Bachelor of Science in Public Health (BSPH) in health policy and administration degrees from the School of Public Health at the University of North Carolina at Chapel Hill. He completed an Agency for Healthcare Research and Quality (AHRQ) pre-doctoral fellowship in health services research at the Cecil G. Sheps Center for Health Services Research and AHRQ post-doctoral fellowship in health services research in the Duke Division of General Internal Medicine and HSR&D Center at the Durham VA. He came to UT Southwestern from Duke University, where he was a Professor in the Departments of Population Health Sciences, Medicine (Division of General Internal Medicine), and Family Medicine & Community Health. He also co-taught evidence-based practice in the Duke Physician Assistant (PA) Program. Dr. Jackson currently maintains appointments as an Adjunct Professor of Population Health Sciences at Duke and Adjunct Professor of Health Policy and Management at the University of North Carolina at Chapel Hill.
![Kelley](https://scholars.duke.edu/profile-images/thumbnail200/0168030.jpg)
Michael John Kelley
1. A major theme throughout my career has been the biology of and improving outcomes for patients with lung cancer. Early publications examined the relationship between specific genetic alterations in lung cancer and clinically relevant applications including differential drug sensitivity, differentiation of metastases from second primary cancers, and application of patient-specific mutations as epitopes for immunotherapy. Correlation of alteration of p16 with drug sensitivity led to identification of a class of CDK4 inhibitor. I served as the primary investigator or co-investigator in all of these studies. I led a study that demonstrated that tubulin mutations are uncommon in lung cancer and described the artifactual detection of pseudogenes as the origin of a prior report claiming association of tubulin mutation with taxane sensitivity, thus correcting the scientific record.
2. A second area of continuing interest in lung cancer is the conduct of therapeutic and prevention clinical trials. These trials have primarily been translation of hypotheses derived primarily from laboratory-based biological observations including the GRP autocrine growth factor in small cell lung cancer, a phase I study of a pulmonary toxin in non-small cell lung cancer, mutation-specific immunotherapy, and a putative chemopreventive agent for smokers. More recently, I have been an active member of the Respiratory Committee of CALGB/Alliance including serving as principal investigator on a trial testing the addition of irinotecan to treatment of patients with small cell lung cancer.
3. Through my clinical practice, I identified a large family with the May-Hegglin anomaly, an autosomal dominant platelet condition characterized as thrombocytopenia, leukocyte inclusions, and giant platelets. While the condition had been described in the early 1900s, the genetic basis was unknown. I conceptualized and led a project to identify the underlying molecular basis of this frequently misdiagnosed disorder through classical genetics. I then extended that observation to related genetic conditions (now known as MYH9-assocaited disorders) characterized by varying degrees of hematological abnormalities, hearing loss and renal disease. Analysis of the spectrum of observed mutations and phenotypes resulted in identification of a genotype-phenotype association for the most medically significant aspects of the disorders. Working with Dan Kiehart’s lab, we described the effect of commonly observed mutations of MYH9 on assembly of non-muscle myosin. An animal model of the most common MYH9 mutation was created in my lab and demonstrated hematological abnormalities similar to those found in humans.
4. I described genetic linkage for a rare familial cancer syndrome characterized by very high penetrance of chordoma. Subsequent linkage analysis resolved a phenotype mis-assignment and resulted in identification of germline gene duplication of the T-box gene, Brachyury in about half of affected families. I then confirmed another groups report that a common coding region SNP of the Brachyury gene as well as additional genetic variants are associated with an increased risk for development of chordoma independent of amplification of the Brachyury gen. To study the biology of chordoma, I established the origin of existing putative chordoma cell lines and working criteria for identification of possible new chordoma cell lines. Using two confirmed chordoma cell lines, I screened all regulatory-approved drugs for anti-growth activity to determine whether any could be repurposed for clinical use in patients.
5. Beginning in 2007, I began to transition my career to a leadership position within the Department of Veterans Affairs as the National Program Director for Oncology. This led to opportunities to utilize the vast and detailed clinical data sets of nearly 1 million patients with cancer to address questions that have been difficult to study either through randomized trials or in less robust datasets. The use of surgery to treat early stage non-small cell lung cancer is a standard treatment for which I observed a racial disparity. The lower rate of use of surgery among African Americans was not explained by association with comorbidity. In another study, I described the rate of use of adjuvant chemotherapy as having increased temporally after publication of randomized trials showing a modest benefit to its use. I showed that initially this chemotherapy was primarily carboplatin-based, despite all positive trials having used cisplatin. Cisplatin use has subsequently increased though there is not a demonstrable improvement is survival associated with its use. I also showed that survival overall, regardless of use of chemotherapy, has improved suggesting that the application of clinical trial data for adjuvant chemotherapy is improving outcome. In a related study, I found that elderly patients benefit as much as younger patients from adjuvant chemotherapy. Patients with stage III non-small cell lung cancer are frequently treated with concurrent chemoradiotherapy, for which there are two commonly used chemotherapy regimens: cisplatin-etoposide and carboplatin-paclitaxel. I examined the outcome and toxicity of patients treated with these two regimens and found that while there was no significant difference in survival, there was more toxicity associated with cisplatin-etoposide. This finding may impact one current clinical guideline recommendation that favors cisplatin-etoposide over carboplatin-paclitaxel. Finally, in stage IV disease, a similar observation was made that cisplatin-based chemotherapy is associated with greater toxicity but not improved survival.
Complete List of Published Work in MyBibliography: http://www.ncbi.nlm.nih.gov/sites/myncbi/michael.kelley.1/bibliography/43511621/public/?sort=date&direction=descending![Bosworth](https://scholars.duke.edu/profile-images/thumbnail200/0212403.jpg)
Hayden Barry Bosworth
Dr. Bosworth is a health services researcher and Deputy Director of the Center of Innovation to Accelerate Discovery and Practice Transformation (ADAPT) at the Durham VA Medical Center. He is also Vice Chair of Education and Professor of Population Health Sciences. He is also a Professor of Medicine, Psychiatry, and Nursing at Duke University Medical Center and Adjunct Professor in Health Policy and Administration at the School of Public Health at the University of North Carolina at Chapel Hill. His research interests comprise three overarching areas of research: 1) clinical research that provides knowledge for improving patients’ treatment adherence and self-management in chronic care; 2) translation research to improve access to quality of care; and 3) eliminate health care disparities.
Dr. Bosworth is the recipient of an American Heart Association established investigator award, the 2013 VA Undersecretary Award for Outstanding Achievement in Health Services Research (The annual award is the highest honor for VA health services researchers), and a VA Senior Career Scientist Award. In terms of self-management, Dr. Bosworth has expertise developing interventions to improve health behaviors related to hypertension, coronary artery disease, and depression, and has been developing and implementing tailored patient interventions to reduce the burden of other chronic diseases. These trials focus on motivating individuals to initiate health behaviors and sustaining them long term and use members of the healthcare team, particularly pharmacists and nurses. He has been the Principal Investigator of over 30 trials resulting in over 400 peer reviewed publications and four books. This work has been or is being implemented in multiple arenas including Medicaid of North Carolina, private payers, The United Kingdom National Health System Direct, Kaiser Health care system, and the Veterans Affairs.
Areas of Expertise: Health Behavior, Health Services Research, Implementation Science, Health Measurement, and Health Policy
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