Onur Baser

Summary

Publications

  1. doi request reprint Direct medical costs associated with rheumatoid arthritis in Turkey: analysis from National Claims Database
    Onur Baser
    Internal Medicine, Rheumatology Department, The University of Michigan, 211N 4th Avenue, Suite 2B, Ann Arbor, MI, 48104, USA
    Rheumatol Int 33:2577-84. 2013
  2. doi request reprint Venous thromboembolism prophylaxis and clinical consequences in medically ill patients
    Onur Baser
    Internal Medicine, University of Michigan, Ann Arbor, MI 48104, USA
    Am J Ther 20:132-42. 2013
  3. doi request reprint High cost patients for cardiac surgery and hospital quality in Turkey
    Onur Baser
    The University of Michigan, Ann Arbor, USA
    Health Policy 109:143-9. 2013
  4. doi request reprint Clinical and economic outcomes in patients with type 2 diabetes initiating insulin glargine disposable pen versus exenatide BID
    Onur Baser
    The University of Michigan, MI, USA
    J Med Econ 14:673-80. 2011
  5. doi request reprint Patient survival and healthcare utilization costs after diagnosis of triple-negative breast cancer in a United States managed care cancer registry
    Onur Baser
    The University of Michigan, Ann Arbor, MI, USA
    Curr Med Res Opin 28:419-28. 2012
  6. doi request reprint Derivation of severity index for rheumatoid arthritis and its association with healthcare outcomes
    O Baser
    STATinMED Research, Ann Arbor, MI 48104, USA
    J Med Econ 15:918-24. 2012
  7. ncbi request reprint Thromboembolism prophylaxis in medical inpatients: effect on outcomes and costs
    Onur Baser
    The University of Michigan, Ann Arbor, Ann Arbor, MI, USA
    Am J Manag Care 18:294-302. 2012
  8. pmc Risk of venous thromboembolism and benefits of prophylaxis use in hospitalized medically ill US patients up to 180 days post-hospital discharge
    Li Wang
    STATinMED Research and The University of Michigan, Ann Arbor, MI, USA
    Thromb J 9:15. 2011
  9. doi request reprint Comparison of real-world adherence, healthcare resource utilization and costs for newly initiated valsartan/amlodipine single-pill combination versus angiotensin receptor blocker/calcium channel blocker free-combination therapy
    Onur Baser
    The University of Michigan and STATinMED Research, Ann Arbor, MI 48104, USA
    J Med Econ 14:576-83. 2011
  10. doi request reprint Cost and clinical consequences of stress/single-photon emission computed tomography testing with specific medications
    Onur Baser
    STATinMED Research, 211 N 4th Avenue, Ann Arbor, MI 48104, USA
    J Med Econ 14:433-9. 2011

Detail Information

Publications33

  1. doi request reprint Direct medical costs associated with rheumatoid arthritis in Turkey: analysis from National Claims Database
    Onur Baser
    Internal Medicine, Rheumatology Department, The University of Michigan, 211N 4th Avenue, Suite 2B, Ann Arbor, MI, 48104, USA
    Rheumatol Int 33:2577-84. 2013
    ..The significant portion of the annual costs was due to pharmaceutical expenditures. Comparative effectiveness analysis may be useful to decrease RA-related pharmacy costs...
  2. doi request reprint Venous thromboembolism prophylaxis and clinical consequences in medically ill patients
    Onur Baser
    Internal Medicine, University of Michigan, Ann Arbor, MI 48104, USA
    Am J Ther 20:132-42. 2013
    ..27.95%, P < 0.02) during the 6 months post-index hospital admission. In conclusion anticoagulant prophylaxis is underutilized and is associated with reduced VTE risk and a decrease in rehospitalizations for medically ill patients...
  3. doi request reprint High cost patients for cardiac surgery and hospital quality in Turkey
    Onur Baser
    The University of Michigan, Ann Arbor, USA
    Health Policy 109:143-9. 2013
    ..Encourage quality improvements and assess high expenditures for patients with coronary artery bypass graft (CABG) surgery and hospital quality in Turkey...
  4. doi request reprint Clinical and economic outcomes in patients with type 2 diabetes initiating insulin glargine disposable pen versus exenatide BID
    Onur Baser
    The University of Michigan, MI, USA
    J Med Econ 14:673-80. 2011
    ..To evaluate clinical and economic outcomes in patients with type 2 diabetes mellitus (T2DM) who failed oral anti-diabetic drug (OAD) therapy and initiated either insulin glargine with disposable pen (GLA-P) or exenatide BID (EXE)...
  5. doi request reprint Patient survival and healthcare utilization costs after diagnosis of triple-negative breast cancer in a United States managed care cancer registry
    Onur Baser
    The University of Michigan, Ann Arbor, MI, USA
    Curr Med Res Opin 28:419-28. 2012
    ..Unique in its tumor aggression and high rates of recurrence, TNBC is less likely to be detected by mammogram and has a poorer prognosis than other breast cancer subtypes (non-TNBC)...
  6. doi request reprint Derivation of severity index for rheumatoid arthritis and its association with healthcare outcomes
    O Baser
    STATinMED Research, Ann Arbor, MI 48104, USA
    J Med Econ 15:918-24. 2012
    ..To develop a claims-based severity index for rheumatoid arthritis (RA) using the Veterans Health Administration (VHA) database...
  7. ncbi request reprint Thromboembolism prophylaxis in medical inpatients: effect on outcomes and costs
    Onur Baser
    The University of Michigan, Ann Arbor, Ann Arbor, MI, USA
    Am J Manag Care 18:294-302. 2012
    ..To evaluate the real-world use of venous thromboembolism (VTE) prophylaxis among medical inpatients and the impact of VTE prophylaxis on outcomes and cost...
  8. pmc Risk of venous thromboembolism and benefits of prophylaxis use in hospitalized medically ill US patients up to 180 days post-hospital discharge
    Li Wang
    STATinMED Research and The University of Michigan, Ann Arbor, MI, USA
    Thromb J 9:15. 2011
    ..abstract:..
  9. doi request reprint Comparison of real-world adherence, healthcare resource utilization and costs for newly initiated valsartan/amlodipine single-pill combination versus angiotensin receptor blocker/calcium channel blocker free-combination therapy
    Onur Baser
    The University of Michigan and STATinMED Research, Ann Arbor, MI 48104, USA
    J Med Econ 14:576-83. 2011
    ....
  10. doi request reprint Cost and clinical consequences of stress/single-photon emission computed tomography testing with specific medications
    Onur Baser
    STATinMED Research, 211 N 4th Avenue, Ann Arbor, MI 48104, USA
    J Med Econ 14:433-9. 2011
    ..We identified the cost of care and clinical events using dipyridamole versus adenosine in pharmacological stress (ST)/single-photon-emission computed tomography (SPECT) myocardial perfusion testing...
  11. doi request reprint Clinical and cost outcomes of venous thromboembolism in Medicare patients undergoing total hip replacement or total knee replacement surgery
    Onur Baser
    The University of Michigan Arbor, MI, USA
    Curr Med Res Opin 27:423-9. 2011
    ..Since the potential for VTE exists in a range of clinical settings, an assessment of its impact on overall outcomes and costs to the patient and to the healthcare system is warranted...
  12. doi request reprint Impact of postoperative venous thromboembolism on Medicare recipients undergoing total hip replacement or total knee replacement surgery
    Onur Baser
    STATinMED Research, Ann Arbor, MI, USA
    Am J Health Syst Pharm 67:1438-45. 2010
    ..The impact of postoperative venous thromboembolism (VTE) during initial hospitalization for total hip replacement (THR) or total knee replacement (TKR) surgery was assessed...
  13. ncbi request reprint Prevalence and economic burden of venous thromboembolism after total hip arthroplasty or total knee arthroplasty
    Onur Baser
    University of Michigan, STATinMED Research, Ann Arbor, MI 48104, USA
    Am J Manag Care 17:S6-8. 2011
    ..Prevention of VTE would improve patient outcomes and result in substantial savings to payers and providers...
  14. doi request reprint Too much ado about instrumental variable approach: is the cure worse than the disease?
    Onur Baser
    STATinMED Research, LLC, 218 N Fourth Avenue, Ann Arbor, MI 48104, USA
    Value Health 12:1201-9. 2009
    ..In this article, we provide an overview of the IV approach, examine possible tests to check the prerequisite conditions, and illustrate how weak instruments may produce inconsistent and inefficient results...
  15. doi request reprint The estimation power of alternative comorbidity indices
    Onur Baser
    STATinMED Research and University of Michigan, Ann Arbor, MI 48104, USA
    Value Health 11:946-55. 2008
    ....
  16. doi request reprint Does pen help? A real-world outcomes study of switching from vial to disposable pen among insulin glargine-treated patients with type 2 diabetes mellitus
    Lin Xie
    STATinMED Research, Inc, Ann Arbor, MI, USA
    Diabetes Technol Ther 15:230-6. 2013
    ....
  17. doi request reprint A real-world study of patients with type 2 diabetes initiating basal insulins via disposable pens
    Lin Xie
    STATinMED Research, 211 North Fourth Avenue, Suite 2B, Ann Arbor, MI, 48104, USA
    Adv Ther 28:1000-11. 2011
    ..Clinical and economic outcomes following initiation with insulin glargine disposable pen (GLA-P) or insulin detemir disposable pen (DET-P) in T2DM patients were compared over 1-year follow-up...
  18. doi request reprint Composite measures for predicting surgical mortality in the hospital
    Justin B Dimick
    University of Michigan, Ann Arbor, MI, USA
    Health Aff (Millwood) 28:1189-98. 2009
    ..In this regard, it was more effective than the individual measures. Such measures would be useful for helping patients and payers identify low-mortality hospitals for major surgery...
  19. pmc Health care costs associated with ankylosing spondylitis in Turkey: an analysis from nationwide real-world data
    Onur Baser
    Department of Internal Medicine, Division of Rheumatology, The University of Michigan, Ann Arbor, MI 48109, USA STATinMED Research, Istanbul, Turkey
    Int J Rheumatol 2013:139608. 2013
    ..Pharmaceutical expenditures cover a significant portion of the overall costs. Comparative effectiveness studies are necessary to further decrease health care costs of AS treatment...
  20. pmc Medicare payments for common inpatient procedures: implications for episode-based payment bundling
    John D Birkmeyer
    Department of Surgery, University of Michigan, 211 N Fourth Ave, Ste 2a, Ann Arbor, MI 48104, USA
    Health Serv Res 45:1783-95. 2010
    ..Decisions about bundled payments would benefit from better information about how payments are currently distributed among providers of different perioperative services and how payments vary across hospitals...
  21. doi request reprint Mortality in medicare patients undergoing surgery in July in teaching hospitals
    Michael J Englesbe
    Department of Surgery, Michigan Surgical Collaborative for Outcomes Research and Evaluation, University of Michigan, Ann Arbor, Michigan 48109 0331, USA
    Ann Surg 249:871-6. 2009
    ..To determine whether operative mortality rates at teaching hospitals in the United States are higher in July, the start of the academic year...
  22. pmc Outlier payments for cardiac surgery and hospital quality
    Onur Baser
    Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA
    Health Aff (Millwood) 28:1154-60. 2009
    ..Still, there is variation across U.S. hospitals, with some hospitals experiencing much higher rates. These findings imply that there is potential for quality improvement to reduce costs while improving morbidity and mortality...
  23. ncbi request reprint Guidelines for selecting among different types of bootstraps
    Onur Baser
    Outcomes Research and Econometrics, Thomson Medstat Group Inc, Ann Arbor, MI, USA
    Curr Med Res Opin 22:799-808. 2006
    ..Its success lies in the ease of estimating sampling distribution, standard error and confidence intervals with few or no assumptions about the distribution of the underlying population...
  24. doi request reprint Preoperative placement of inferior vena cava filters and outcomes after gastric bypass surgery
    Nancy J O Birkmeyer
    Department of Surgery, Michigan Surgical Collaboration for Outcomes Research and Evaluation, University of Michigan, Ann Arbor, MI, USA
    Ann Surg 252:313-8. 2010
    ..To assess relationships between inferior vena cava (IVC) filter placement and complications within 30 days of gastric bypass surgery...
  25. doi request reprint Socioeconomic status and surgical mortality in the elderly
    Nancy J O Birkmeyer
    Department of Surgery, Michigan Surgical Collaborative for Outcomes Research and Evaluation, University of Michigan, Ann Arbor, Michigan, USA
    Med Care 46:893-9. 2008
    ..Although racial disparities in the quality of surgical care are well described, the impact of socioeconomic status on operative mortality is relatively unexplored...
  26. doi request reprint Real-world rates, predictors, and associated costs of hypoglycemia among patients with type 2 diabetes mellitus treated with insulin glargine: results of a pooled analysis of six retrospective observational studies
    Lin Xie
    STATinMED Research, Ann Arbor, MI 48104, USA
    J Med Econ 16:1137-45. 2013
    ..To evaluate the real-world rates of hypoglycemia and related costs among patients with type 2 diabetes mellitus (T2DM) who initiated insulin glargine with either a disposable pen or vial-and-syringe...
  27. pmc Severity index for rheumatoid arthritis and its association with health care costs and biologic therapy use in Turkey
    Onur Baser
    Internal Medicine Department, Rheumatology Division, The University of Michigan, 211 N 4th Avenue, Suite 2B, Ann Arbor, MI 48104, USA
    Health Econ Rev 3:5. 2013
    ..This study aimed to apply the previously validated severity index for rheumatoid arthritis (SIFRA) to prevalent rheumatoid arthritis (RA) groups in Turkey and determine the effect of RA severity on health care costs and biologic use...
  28. doi request reprint Assessment of adherence and healthcare costs of insulin device (FlexPen) versus conventional vial/syringe
    Onur Baser
    The University of Michigan and STATinMED Research, 218 N Fourth Avenue, Ann Arbor, MI 48104, USA
    Adv Ther 27:94-104. 2010
    ..Unlike the traditional method of insulin administration via the vial and syringe method, insulin pens might be perceived as less cumbersome and have potential to significantly increase patient adherence...
  29. ncbi request reprint Too much ado about propensity score models? Comparing methods of propensity score matching
    Onur Baser
    Thomson Medstat, Ann Arbor, MI, USA
    Value Health 9:377-85. 2006
    ..In this article we evaluate several matching techniques and provide a suggested guideline for selecting the best technique...
  30. pmc Variations in the use of internal fixation for distal radial fracture in the United States medicare population
    Kevin C Chung
    Section of Plastic Surgery, Department of Surgery, University of Michigan Health System, 2130 Taubman Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109 0340, USA
    J Bone Joint Surg Am 93:2154-62. 2011
    ....
  31. ncbi request reprint Predictors of preventive service use among Medicare beneficiaries
    Ronald J Ozminkowski
    Thomson Medstat, Ann Arbor, MI 48108, USA
    Health Care Financ Rev 27:5-23. 2006
    ..Strategies should be developed to ensure appropriate use of preventive services over time...
  32. ncbi request reprint Impact of statin copayments on adherence and medical care utilization and expenditures
    Teresa B Gibson
    Thomson Medstat, 777 E Eisenhower Pkwy, Ann Arbor, MI 48108, USA
    Am J Manag Care 12:SP11-9. 2006
    ..To examine the effects of statin cost-sharing (ie, copayments, coinsurance) on adherence to statin medications and the impact of adherence on healthcare utilization and spending...
  33. ncbi request reprint Longitudinal analysis of censored medical cost data
    Onur Baser
    Thomson Medstat, Ann Arbor, MI 48108, USA
    Health Econ 15:513-25. 2006
    ..The methods are applied to a sample of 201 Medicare beneficiaries diagnosed with lung cancer between 1994 and 1997...