Jason A Dominitz

Summary

Country: USA

Publications

  1. pmc Regional variation in anesthesia assistance during outpatient colonoscopy is not associated with differences in polyp detection or complication rates
    Jason A Dominitz
    Northwest Center for Outcomes Research in Older Adults, VA Puget Sound Health Care System, Seattle, Washington 98108, USA
    Gastroenterology 144:298-306. 2013
  2. ncbi request reprint Complications and antireflux medication use after antireflux surgery
    Jason A Dominitz
    Northwest Health Services Research and Development Center of Excellence, VA Puget Sound Health Care System, Seattle, Washington 98108 1597, USA
    Clin Gastroenterol Hepatol 4:299-305. 2006
  3. pmc Racial differences in the evaluation and treatment of hepatitis C among veterans: a retrospective cohort study
    Christine M Rousseau
    Northwest Health Services Research and Development Center of Excellence and the Northwest Hepatitis C Resource Center, VA Puget Sound Health Care System, Seattle, WA, USA
    Am J Public Health 98:846-52. 2008
  4. pmc Completion of therapy by Medicare patients with stage III colon cancer
    Sharon A Dobie
    Department of Family Medicine, University of Washington, Seattle, WA 98195 6390, USA
    J Natl Cancer Inst 98:610-9. 2006
  5. ncbi request reprint Is central obesity associated with cirrhosis-related death or hospitalization? A population-based, cohort study
    George N Ioannou
    Health Services Research and Development and Northwest Hepatitis C Resource Centers, Veterans Affairs Puget Sound System, Seattle, Washington, USA
    Clin Gastroenterol Hepatol 3:67-74. 2005
  6. doi request reprint The effect of periodic monitoring and feedback on screening colonoscopy withdrawal times, polyp detection rates, and patient satisfaction scores
    Otto S Lin
    Gastroenterology Section, Virginia Mason Medical Center, Seattle, Washington, USA
    Gastrointest Endosc 71:1253-9. 2010
  7. pmc Accuracy of Medicare claims for identifying findings and procedures performed during colonoscopy
    Cynthia W Ko
    Department of Medicine, University of Washington, Seattle, Washington, USA
    Gastrointest Endosc 73:447-453.e1. 2011
  8. pmc Explaining black-white differences in receipt of recommended colon cancer treatment
    Laura Mae Baldwin
    Department of Family Medicine, University of Washington, Seattle, WA 98195 4982, USA
    J Natl Cancer Inst 97:1211-20. 2005
  9. ncbi request reprint The effect of alcohol consumption on the prevalence of iron overload, iron deficiency, and iron deficiency anemia
    George N Ioannou
    Department of Medicine and Division of Gastroenterology, University of Washington Medical Center, and VA Medical Center, 1660 S Columbian Way, Seattle, WA 98108, USA
    Gastroenterology 126:1293-301. 2004
  10. ncbi request reprint Elevated prevalence of hepatitis C infection in users of United States veterans medical centers
    Jason A Dominitz
    Epidemiologic Research and Information Center VA Puget Sound Health Care System, Seattle, WA 98108 1597, USA
    Hepatology 41:88-96. 2005

Collaborators

Detail Information

Publications40

  1. pmc Regional variation in anesthesia assistance during outpatient colonoscopy is not associated with differences in polyp detection or complication rates
    Jason A Dominitz
    Northwest Center for Outcomes Research in Older Adults, VA Puget Sound Health Care System, Seattle, Washington 98108, USA
    Gastroenterology 144:298-306. 2013
    ..We investigated the rate and predictors of anesthesia assistance during outpatient colonoscopy and whether anesthesia assistance is associated with colonoscopy interventions and outcomes...
  2. ncbi request reprint Complications and antireflux medication use after antireflux surgery
    Jason A Dominitz
    Northwest Health Services Research and Development Center of Excellence, VA Puget Sound Health Care System, Seattle, Washington 98108 1597, USA
    Clin Gastroenterol Hepatol 4:299-305. 2006
    ..The aim of this study was to estimate postoperative complications and continued use of antireflux medications and to identify predictors of complications...
  3. pmc Racial differences in the evaluation and treatment of hepatitis C among veterans: a retrospective cohort study
    Christine M Rousseau
    Northwest Health Services Research and Development Center of Excellence and the Northwest Hepatitis C Resource Center, VA Puget Sound Health Care System, Seattle, WA, USA
    Am J Public Health 98:846-52. 2008
    ..We examined the association between race and hepatitis C virus (HCV) evaluation and treatment of veterans in the Northwest Network of the Department of Veterans Affairs (VA)...
  4. pmc Completion of therapy by Medicare patients with stage III colon cancer
    Sharon A Dobie
    Department of Family Medicine, University of Washington, Seattle, WA 98195 6390, USA
    J Natl Cancer Inst 98:610-9. 2006
    ..We investigated mortality as a means to testing the validity of the completion measure that we created...
  5. ncbi request reprint Is central obesity associated with cirrhosis-related death or hospitalization? A population-based, cohort study
    George N Ioannou
    Health Services Research and Development and Northwest Hepatitis C Resource Centers, Veterans Affairs Puget Sound System, Seattle, Washington, USA
    Clin Gastroenterol Hepatol 3:67-74. 2005
    ..We aimed to determine the interaction between body fat distribution (central versus peripheral) and increased body mass index (BMI) with regards to the risk of cirrhosis-related death or hospitalization...
  6. doi request reprint The effect of periodic monitoring and feedback on screening colonoscopy withdrawal times, polyp detection rates, and patient satisfaction scores
    Otto S Lin
    Gastroenterology Section, Virginia Mason Medical Center, Seattle, Washington, USA
    Gastrointest Endosc 71:1253-9. 2010
    ..Previous studies showed a correlation between mean withdrawal times during screening colonoscopy and polyp/neoplasia detection rates...
  7. pmc Accuracy of Medicare claims for identifying findings and procedures performed during colonoscopy
    Cynthia W Ko
    Department of Medicine, University of Washington, Seattle, Washington, USA
    Gastrointest Endosc 73:447-453.e1. 2011
    ..Administrative claims data are frequently used for quality measurement...
  8. pmc Explaining black-white differences in receipt of recommended colon cancer treatment
    Laura Mae Baldwin
    Department of Family Medicine, University of Washington, Seattle, WA 98195 4982, USA
    J Natl Cancer Inst 97:1211-20. 2005
    ..This retrospective cohort study examines the degree to which health systems (e.g., physician, hospital) factors explain black-white disparities in colon cancer care...
  9. ncbi request reprint The effect of alcohol consumption on the prevalence of iron overload, iron deficiency, and iron deficiency anemia
    George N Ioannou
    Department of Medicine and Division of Gastroenterology, University of Washington Medical Center, and VA Medical Center, 1660 S Columbian Way, Seattle, WA 98108, USA
    Gastroenterology 126:1293-301. 2004
    ..Our aim was to investigate the relationship between alcohol consumption and iron overload, iron deficiency, or iron deficiency anemia in the U.S. population...
  10. ncbi request reprint Elevated prevalence of hepatitis C infection in users of United States veterans medical centers
    Jason A Dominitz
    Epidemiologic Research and Information Center VA Puget Sound Health Care System, Seattle, WA 98108 1597, USA
    Hepatology 41:88-96. 2005
    ..In conclusion, the prevalence of hepatitis C in these subjects exceeds the estimate from the general US population by more than 2-fold, likely reflecting more exposure to traditional risk factors among these veterans...
  11. pmc Preference for colonoscopy versus computerized tomographic colonography: a systematic review and meta-analysis of observational studies
    Otto S Lin
    C3 GAS, Gastroenterology Section, Virginia Mason Medical Center, 1100 Ninth Avenue, Seattle, WA 98101, USA
    J Gen Intern Med 27:1349-60. 2012
    ..Studies published in radiology journals showed significantly stronger preference for CTC compared with studies in gastroenterology or general medicine journals...
  12. doi request reprint Specialty differences in polyp detection, removal, and biopsy during colonoscopy
    Cynthia W Ko
    Department of Medicine, University of Washington, Seattle, WA 98195, USA
    Am J Med 123:528-35. 2010
    ..Colonoscopy is a technically complex procedure commonly performed to detect and remove colorectal pathology. This study examined the influence of provider characteristics on polyp detection, polyp removal, and diagnostic biopsy rates...
  13. doi request reprint Utilization and predictors of early repeat colonoscopy in Medicare beneficiaries
    Cynthia W Ko
    Department of Medicine, University of Washington, Seattle, Washington 98195, USA
    Am J Gastroenterol 105:2670-9. 2010
    ..The aims of this study were to examine the use of second colonoscopy within 1 year of an index colonoscopy, and to examine patient and provider factors associated with use of early repeat colonoscopy...
  14. pmc New endoscopic and cytologic tools for cancer surveillance in the digestive tract
    Eric J Seibel
    Department of Mechanical Engineering, University of Washington, Seattle, 98195, USA
    Gastrointest Endosc Clin N Am 19:299-307. 2009
    ..Advanced three-dimensional cell visualization techniques are described for increasing the sensitivity of early cancer diagnosis from hematoxylin-stained cells sampled from the pancreatic and biliary ducts...
  15. ncbi request reprint Predictors of colorectal cancer screening participation in the United States
    George N Ioannou
    Health Services Research, Veterans Affairs Puget Sound Health Care System, Seattle, Washington 98108, USA
    Am J Gastroenterol 98:2082-91. 2003
    ..Our aim was to identify predictors of colorectal cancer screening in the United States and subgroups with particularly low rates of screening...
  16. doi request reprint Effectiveness of a provider reminder on fecal occult blood test follow-up
    Meaghan F Larson
    VA Puget Sound Health Care System, Seattle, WA, USA
    Dig Dis Sci 54:1991-6. 2009
    ..To determine the impact of an electronic reminder upon the timeliness and proportion of patients referred for evaluation of a positive fecal occult blood test and receipt of colonoscopy...
  17. ncbi request reprint Is obesity a risk factor for cirrhosis-related death or hospitalization? A population-based cohort study
    George N Ioannou
    Veterans Affairs Medical Center, Health Services Research and Development, MS 152, Building 1, Room 422, 1660 South Columbian Way, Seattle, Washington 98108, USA
    Gastroenterology 125:1053-9. 2003
    ..Our aim was to determine whether increased body mass index (BMI) in the general population is associated with cirrhosis-related death or hospitalization...
  18. ncbi request reprint Risk stratification for colon neoplasia: screening strategies using colonoscopy and computerized tomographic colonography
    Otto S Lin
    Gastroenterology Section, Virginia Mason Medical Center, 1100 Ninth Avenue, Seattle, WA 98101, USA
    Gastroenterology 131:1011-9. 2006
    ..We developed a risk index to identify low-risk patients who may be screened for colorectal cancer with computerized tomographic colonography (CTC) instead of colonoscopy...
  19. doi request reprint Predictors of early treatment discontinuation among patients with genotype 1 hepatitis C and implications for viral eradication
    Lauren A Beste
    Health Services Research and Development Center of Excellence, VA Puget Sound Healthcare System, Seattle, Washington, USA
    Clin Gastroenterol Hepatol 8:972-8. 2010
    ..Risk factors for discontinuation before 48 weeks among patients with genotype 1 HCV vary over the course of therapy. We investigated the rates and risk factors for treatment discontinuation within 12 weeks, 12-24 weeks, and 24-48 weeks...
  20. ncbi request reprint Hepatitis C virus infection and the prevalence of renal insufficiency
    Lorien S Dalrymple
    Health Services Research and Development Northwest Center of Excellence, Seattle, WA 98108, USA
    Clin J Am Soc Nephrol 2:715-21. 2007
    ..Hepatitis C virus (HCV) is associated with pathologic changes in the kidney. However, the association between HCV and renal dysfunction is not well defined...
  21. ncbi request reprint Predictors of treatment in patients with chronic hepatitis C infection - role of patient versus nonpatient factors
    Fasiha Kanwal
    John Cochran VA Medical Center, St Louis, MO, USA
    Hepatology 46:1741-9. 2007
    ..These potentially modifiable provider-level factors may serve as high-yield targets for future quality improvement initiatives in HCV...
  22. ncbi request reprint The safety of valproic acid use for patients with hepatitis C infection
    Bradford L Felker
    Department of Veteran Affairs Puget Sound Health Care System, MHC 116, 1660 South Columbian Way, Seattle, WA 98108 1597, USA
    Am J Psychiatry 160:174-8. 2003
    ..Valproic acid is frequently not recommended for patients with hepatic dysfunction. The authors evaluated the association between hepatitis C and alanine aminotransferase (ALT) values during valproic acid treatment...
  23. ncbi request reprint Fecal occult blood testing in a general medical clinic: comparison between guaiac-based and immunochemical-based tests
    Cynthia W Ko
    Department of Medicine, University of Washington, Seattle, Washington, USA
    Am J Med 115:111-4. 2003
    ..Newer immunochemical-based tests are designed to improve accuracy and patient compliance. We compared patient compliance and the test characteristics of these two types of tests...
  24. doi request reprint Complications of colonoscopy: magnitude and management
    Cynthia W Ko
    Department of Medicine, Division of Gastroenterology, University of Washington, Box 356424, Seattle, WA, USA
    Gastrointest Endosc Clin N Am 20:659-71. 2010
    ..This article reviews the magnitude of and risk factors for major and minor colonoscopy complications, discusses management of complications, and suggests ways to design quality improvement programs to reduce the risk of complications...
  25. pmc Scanning single fiber endoscopy: a new platform technology for integrated laser imaging, diagnosis, and future therapies
    Eric J Seibel
    University of Washington, Seattle, WA 98195, USA
    Gastrointest Endosc Clin N Am 18:467-78, viii. 2008
    ..The resulting images are high-quality color video that is expected to produce future endoscopes that are thinner, longer, more flexible, and able to directly integrate the many recent advances of laser diagnostics and therapies...
  26. ncbi request reprint Hepatitis C tested prevalence and comorbidities among veterans in the US Northwest
    Kevin L Sloan
    Veterans Affairs Puget Sound Health Care System, Mental Health Service and the Addictions Treatment Center, Seattle, WA 98108, USA
    J Clin Gastroenterol 38:279-84. 2004
    ....
  27. doi request reprint Assessment and management of low bone density in inflammatory bowel disease and performance of professional society guidelines
    Jason P Etzel
    Division of Gastroenterology, Department of Medicine, Oregon Health and Science University, Portland, Oregon, USA
    Inflamm Bowel Dis 17:2122-9. 2011
    ..The study aim was to identify predictors of BMD testing and treatment and assess guideline effectiveness to identify IBD patients with osteoporosis...
  28. ncbi request reprint Predicting poor outcome from acute upper gastrointestinal hemorrhage
    Thomas F Imperiale
    Department of Medicine, Roudebush Veterans Affairs Medical Center, The Center of Excellence on Implementing Evidence Based Practice, Indiana University School of Medicine, Indianapolis 46202, USA
    Arch Intern Med 167:1291-6. 2007
    ..Uncertainty about the outcome of acute upper gastrointestinal bleeding often results in a longer-than-necessary hospital stay...
  29. ncbi request reprint Outcomes of infants born to mothers with inflammatory bowel disease: a population-based cohort study
    Jason A Dominitz
    Department of Medicine, University of Washington School of Medicine, Health Services Research and Development, and VA Puget Sound Health Care System, Seattle, USA
    Am J Gastroenterol 97:641-8. 2002
    ..Limited population-based data on inflammatory bowel disease (IBD) and pregnancy outcomes exist. The purpose of this study is to determine the association between maternal IBD status and adverse pregnancy outcomes...
  30. doi request reprint Tethered capsule endoscopy, a low-cost and high-performance alternative technology for the screening of esophageal cancer and Barrett's esophagus
    Eric J Seibel
    Department of Mechanical Engineering, University of Washington, Human Photonics Lab, Box 352600, Seattle, WA 98195, USA
    IEEE Trans Biomed Eng 55:1032-42. 2008
    ....
  31. ncbi request reprint Cost effectiveness of testing strategies for chronic hepatitis C
    Michael K Chapko
    Northwest Hepatitis C Resource Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
    Am J Gastroenterol 100:607-15. 2005
    ..Using optical density to divide EIA results into three categories (high positive, low positive, negative) was also considered...
  32. ncbi request reprint Prevalence of rheumatoid arthritis and hepatitis C in those age 60 and older in a US population based study
    Florence C Hsu
    Seattle Epidemiologic Research and Information Center and the Arthritis and Gastroenterology Sections, Seattle, Washington 98108 1532, USA
    J Rheumatol 30:455-8. 2003
    ..A positive association between rheumatoid arthritis (RA) and hepatitis C virus (HCV) infection has been reported in clinic based cross sectional studies. We investigated if RA and HCV are associated in a population based survey...
  33. ncbi request reprint Racial differences in the relationship between hepatitis C infection and iron stores
    George N Ioannou
    Department of Medicine and Division of Gastroenterology, University of Washington, Seattle, WA 98195, USA
    Hepatology 37:795-801. 2003
    ..This finding may partly explain the reduced response of HCV-positive African-Americans to antiviral treatment...
  34. ncbi request reprint Race, treatment, and survival of veterans with cancer of the distal esophagus and gastric cardia
    Jason A Dominitz
    Seattle Epidemiologic Research and Information Center, Department of Surgery, VA Puget Sound Health Care System, Washington 98108 1597, USA
    Med Care 40:I14-26. 2002
    ..Prior studies have found racial differences in the use of invasive procedures and in cancer survival...
  35. ncbi request reprint Risk factors for colorectal cancer in relation to number and size of aberrant crypt foci in humans
    Rebecca E Rudolph
    Veterans Affairs Puget Sound Health Care System, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
    Cancer Epidemiol Biomarkers Prev 14:605-8. 2005
    ..Future research should be directed toward developing techniques to identify ACF that are likely to progress to cancer and the modifiable factors that promote or inhibit such progression...
  36. pmc Does surgeon case volume influence nonfatal adverse outcomes after rectal cancer resection?
    Kevin G Billingsley
    Department of Surgery, Oregon Health and Science University, Portland, OR 97239, USA
    J Am Coll Surg 206:1167-77. 2008
    ....
  37. ncbi request reprint Role of endoscopy in the management of GERD
    David R Lichtenstein
    Gastrointest Endosc 66:219-24. 2007
  38. ncbi request reprint CT colonoscopy
    W Michael McDonnell
    Gastroenterology 127:693; author reply 693-4. 2004
  39. ncbi request reprint Association of interferon-alpha-induced depression and improved treatment response in patients with hepatitis C
    Jennifer M Loftis
    Portland VA Medical Center, Behavioral Health and Clinical Neurosciences Division, OR, USA
    Neurosci Lett 365:87-91. 2004
    ..In conclusion, our findings suggest that IFN-alpha-induced MDD may be a predictor of a positive response to IFN-alpha therapy, or an indication of optimal dosing...
  40. ncbi request reprint Surgeon and hospital characteristics as predictors of major adverse outcomes following colon cancer surgery: understanding the volume-outcome relationship
    Kevin G Billingsley
    Department of Surgery, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA
    Arch Surg 142:23-31; discussion 32. 2007
    ..We hypothesize that there are modifiable surgeon and hospital characteristics that explain observed volume-outcome relationships...