Data Mining

Economic Analysis

Published Literature
Compilation

Publications and Presentations

Medical Devices and Minimally Invasive Procedures

Cardiovascular Disease

Reynolds MR, Gunnarsson CL, Hunter TD, Ladapo JA, March JL, Zhang M, Hao SC. Health Outcomes with Catheter Ablation or Antiarrhythmic Drug Therapy in Atrial Fibrillation: Results of a Propensity Matched Analysis. Circulation. Accepted for Publication Feb 2012

Marelli C, Gunnarsson CL, Ross SD, Haas S, Stroup DF, Cload P, Clopton P, DeMaria A. Statins and the Risk of Cancer: A Retrospective Cohort Analysis of 45,857 Matched Pairs from an Electronic Medical Records Database of 11 Million Adult Americans. J Am Coll Cardiol.2011;58:530-537.

Ladapo JA, David G, Gunnarsson CL, Hao SC, White SA, March JL, Reynolds MR. Healthcare Utilization and Expenditures in Patients with Atrial Fibrillation Treated with Catheter Ablation. J Cardiovasc Electrophysiol. 2011 Jul 21. doi: 10.1111/j.1540-8167.2011.02130.x. [Epub ad of print]

Hunter TD, Gunnarsson CL, Bullano MF, de Vane PJ. Is Cardiovascular Medication Usage a Marker for Cardiovascular Risk? Potential Implication for Smart-Edit Formulary Management Strategies. Poster presented at the ISPOR 16th Annual International Meeting May 21 – 25, 2011 Hilton Baltimore, Baltimore, MD, USA.

Ladapo JA, David G, Gunnarsson CL, Hao S, White S, March J, Zhang M, Reynolds M. Reduction in Healthcare Utilization and Expenditures in Patients Treated with Catheter Ablation for Atrial Fibrillation (AF) in the United States. Poster presented at the ISPOR 16th Annual International Meeting May 21 – 25, 2011 Hilton Baltimore, Baltimore, MD, USA.

Reynolds MR, Gunnarsson CL, Hunter TD, Ladapo JA, March JL, White SA, Zhang M, Hao SC. Comparison of Long Term Stroke/TIA and Heart Failure Event Risks Between Patients with Atrial Fibrillation who Undergo Radiofrequency Catheter Ablation vs. Matched Patients who have not had an Ablation Procedure. Poster presented at the ACC.11 60th Annual Scientific Session & Expo, April 2 - 5, 2011, New Orleans, LA, USA.

Cload P, Kallenbach L, Ross S, Haas S, Gunnarsson C. Impact of a seminal study on practice patterns: Statin use before and after the JUPITER study. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Pilz G, Patel P, Fell U, Rizzo J, Fang H, Gunnarsson C, Graw M, Hoefling B. Adenosine-stress cardiac magnetic resonance imaging in suspected coronary artery disease: A net cost analysis and reimbursement implications. Journal of Cardiovascular Magnetic Resonance 2010;12(Suppl1):P295.

Budoff M, Karwasky R, Ahmadi N, Nasserian C, Pratt F, Stephens J, Chang WW, Flores FR, Rizzo J, Gunnarsson C, McKay CR. Cost-effectiveness of multidetector computed tomography compared with myocardial perfusion imaging as gatekeeper to invasive coronary angiography in asymptomatic firefighters with positive treadmill tests. Journal of Cardiovascular Computed Tomography. 2009 Sept/Oct;3(5):323-330.

Cload C, Ross S, Haas S, Gunnarsson C. Using electronic medical records (EMRS) to assess anticoagulation status according to stroke risk in patients with atrial fibrillation in ambulatory care settings. Poster presented at ISPOR - 12th Annual European Congress. October 24 - 27, 2009, Le Palais des Congrès de Paris, Paris, France.

Pilz G, Patel P, Fell U, Rizzo R, Fang H, Gunnarsson C, Graw M, Hoefling B. Adenosine-stress cardiac magnetic resonance imaging in suspected coronary artery disease: A net cost analysis & reimbursement implications. Poster presented at ISPOR - Annual European Congress. October 24 - 27, 2009, Le Palais des Congrès de Paris, Paris, France.

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Gastrointestinal Disease

Inadomi J, Gunnarsson C, Rizzo JA, Fang H. Projected increased growth rate of anesthesia professional-delivered sedation for colonoscopy and EGD in the United States: 2009:2015. Gastrointestinal Endoscopy. September 2010;72(3):580- 586.

Lofland J, Naim A, Rizzo J, Gunnarsson C, Chen J, Waters H. The direct costs of inflammatory bowel disease: Evidence from United States national survey data. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Lofland J, Naim A, Rizzo J, Gunnarsson C, Chen J, Waters H. The indirect costs of inflammatory bowel disease: Evidence from United States national survey data. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton

Lofland J, Naim A, Rizzo J, Gunnarsson C, Chen J, Waters H. The direct costs of inflammatory bowel disease: Evidence from United States national survey data. Poster presented at the Digestive Disease Week (DDW). May 1 – 5, 2010. Ernst N. Morial Convention Center, New Orleans, LA.

Lofland J, Naim A, Rizzo J, Gunnarsson C, Chen J, Waters H. The indirect costs of inflammatory bowel disease: Evidence from United States national survey data. Poster presented at the Digestive Disease Week (DDW). May 1 – 5, 2010. Ernst N. Morial Convention Center, New Orleans, LA.

Inadomi J, Gunnarsson C, Rizzo J, Fang H. The predicted cost of anesthesia professionally-delivered sedation for colonoscopy and EGD in the United States and the impact of computer-assisted personalized sedation. Poster presented at the 7th Annual World Health Care Congress. April 12-14, 2010. Gaylord National Resort and Convention Center, National Harbor, MD.

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Dermatology

Gunnarsson C, Chen J, Rizzo JA, Ladapo JA, Naim A, Lofland JH. The direct healthcare insurer and out-of-pocket expenditures of psoriasis: evidence from a United States national survey [published online ahead of print July 31, 2011]. J Dermatolog Treat. doi:10.3109/09546634.2010.550911

Lofland J, Rizzo J, Gunnarsson C, Chen J, Waters H. The direct medical costs of psoriasis: Evidence from United States national survey data. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

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Endocrine Disorders/Obesity

Benoit S, Hunter TD, Steinbuch M, Fegelman E, Francis D, Seeley R. Using Electronic Medical Records to Identify Potential Predictors for Bariatric Surgery Success. Poster presented at the ISPOR 16th Annual International Meeting May 21 – 25, 2011 Hilton Baltimore, Baltimore, MD, USA.

Crawford A, Cote C, Couto J, Daskiran M, Gunnarsson C, Haas K, Haas S, Nigam S, and Schuette R. Prevalence of Obesity, Type II Diabetes Mellitus, Hyperlipidemia, and Hypertension in the United States: Findings from the GE Centricity Electronic Medical Record Database. Population Health Management. June 2010;13(3):151-161.

Cload P, Zyczynski T, Ross S, Haas S, Gunnarsson C. Underuse of BMD measurements and bisphosphonate treatment in women over age 50 with osteoporosis in a nationally-representative EMR database. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Marelli C, Cload P, Zyczynski T, Ross S, Gunnarsson C, Haas S. Using electronic medical records to identify undiagnosed diabetes mellitus in primary care practices. Podium presentation at ISPOR - 12th Annual European Congress. October 24 - 27, 2009, Le Palais des Congrès de Paris, Paris, France.

Cawley J, Rizzo J, Gunnarsson C, Haas K. The health care costs effects of diabetes among obese and morbidly obese adults in the United States. Poster presented at ISPOR - 13th Annual International Meeting; May, 2008. This study was funded by Ethicon Endo-Surgery, Inc.

Cawley J, Rizzo J, Haas K (For S2 Statistical Solutions, Inc.). The association of diabetes with job absenteeism costs among obese and morbidly obese workers. Journal of Occupational and Environmental Medicine. 2008 May;50(5):527-534.

Cawley J, Rizzo J, Haas K (For S2 Statistical Solutions, Inc). Occupation-specific absenteeism costs associated with obesity and morbid obesity. Journal of Occupational and Environmental Medicine. 2007 Dec;48(12):1317-1324.

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Research Methods

Cload P, Mallow P, Mako J, Gunnarsson C. Data Visualization for Business Intelligence: Assessing an Online Tool Used for Benchmarking Hospital Procedure costs to Reimbursment in Cardiac Catheterization and Electrophysiology Procedures. Poster presentation at ISPOR 14th Annual European Congress November 5-8, 2011 Madrid Spain

Crawford A, Cote C, Couto J, Daskiran M, Gunnarsson C, Haas K, Haas S, Nigam S, Schuette R, Yaskin J. Comparison of GE Centricity Electronic Medical Record Database and National Ambulatory Medical Care Survey Findings on the Prevalence of Major Conditions in the United States. Population Health Management. June 2010;13(3):139-150.

Rizzo J, Gunnarsson C, Zyczynski T, Ryan A. Methods for imputing health care expenditure data across operational databases: Evidence based decision making through innovations with database visualization. Podium presentation at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Marelli C, Cload C, Zyczynski T, Ross S, Gunnarsson C, Haas S. The utilization of outpatient electronic health record systems data for outcomes and quality research: Strengths, weaknesses and lessons learned: A case study using the GE Centricity EHR. Podium presentation at ISPOR - 14th Annual International Meeting, May 16 – 20, 2009, Orlando, FL, USA.

Gunnarsson C, Ross S. Health technology assessments in Asian-Pacific countries. Podium presentation at ISPOR - 3rd Asia-Pacific Conference, September 7 – 9, 2008, Seoul, South Korea.

Therapeutic nutritional products: Use of evidence-based medicine to support health claims. Worldnutra 2005 - 6th International Conference & Exhibition on Nutraceuticals and Functional Foods, October 16 - 19, 2005, Anaheim, CA, USA.

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Medical Devices and Minimally Invasive Procedures

Howington JA, Gunnarsson CL, Maddaus MA, McKenna RJ, Meyers BF, Miller D, Moore M, Rizzo JA, Swanson S. In-Hospital Clinical and Economic Consequences of Pulmonary Wedge Resections for Cancer Using Video-Assisted Thoracoscopic Techniques vs. Traditional Open Resections: A Retrospective Database Analysis. CHEST. 2012;141(2):429-35

Patel PA, Gunnarsson C. A Passive Monitoring System in Assisted Living Facilities: 12-Month Comparative Study. Accepted for publication in Physical & Occupational Therapy in Geriatrics

Patel PA, Ernst FR, Gunnarsson CL Evaluation of hospital complications and costs associated with using ultrasound guidance during abdominal paracentesis procedures. J Med Econ. 2011 Oct 19. [Epub ahead of print]

Patel PA, Ernst FR, Gunnarsson CL. Ultrasonography Guidance Reduces Complications and Costs Associated with Thoracentesis Procedures. J Clin Ultrasound. 2011 Oct 12. doi: 10.1002/jcu.20884. [Epub ahead of print]

Mallow P, Gunnarsson C, Rizzo JA. Cost Savings Through the Prevention of Blood Spray Exposure During an Umbilical Cord Transection. Poster presented at the AOHP 2011 National Conference, September 28 - October 1, 2011, Minneapolis, MN, USA.

Howington JA, Gunnarsson CL, Maddaus MA, McKenna RJ, Meyers BF, Miller D, Moore M, Rizzo JA, Swanson S. In Hospital Clinical and Economic Consequences of Pulmonary Wedge Resections for Cancer Using Video-Assisted Thoracoscopic Techniques vs. Traditional Open Resections: A Retrospective Database Analysis. CHEST. 2011 Jul 21. [Epub ahead of print]

Swanson SJ, Meyers BF, Gunnarsson CL, Moore M, Howington JA, Maddaus MA, McKenna RJ, Miller DL. Video-Assisted Thoracoscopic (VATS) Lobectomy is Less Costly and Morbid than Open Lobectomy -A Retrospective Multi-Institutional Database Analysis. Accepted for publication in Annals of Thoracic Surgery.

David G, Gunnarsson CL, Moore M, Howington J, Miller D, Maddaus M, McKenna R, Meyers B, Swanson S. Surgeon’s Volume-Outcomes Relationship for Lobectomies and Wedge Resections for Cancer Using Video-Assisted Thoracoscopic Techniques. Poster presented at the ISPOR 16th Annual International Meeting May 21 – 25, 2011 Hilton Baltimore, Baltimore, MD, USA.

Patel PA, Gunnarsson CL. Use of a Passive Monitoring System in Assisted Living Facilities – a 12 Month Comparative Study. Poster presented at the ASA 2011 Aging in America Conference April 26 – 30, 2011 in San Francisco, CA, USA.

Swanson SJ, Howington JA, Meyers BF, Miller DL, Maddaus MA, McKenna RJ. Video- Assisted Thoracoscopic (VATS) Lobectomy is Less Costly and Morbid than Open Lobectomy–A Retrospective Multi-Institution Database Analysis. Poster presented at the STS 47th Annual Meeting Jan. 31 - Feb. 2, 2011, San Diego, CA, USA.

Howington, JA, Gunnarsson C, Maddaus MA, McKenna RJ, Miller D, Myers BF, Moore M, Swanson S. Clinical and Economic Consequences of Pulmonary Wedge Resections for Cancer Using Video-Assisted Thoracoscopic Techniques vs. Traditional Open Resections: A Retrospective Database Analysis. Poster presented at CHEST 2010, October 30 – November 4, 2010, Vancouver, BC, Canada.

Patel PA, Ernst FR, Gunnarsson CL. Evaluation of Hospital Complications and Costs Associated With Thoracentesis With or Without Ultrasound Guidance. Poster presented at CHEST 2010, October 30 – November 4, 2010, Vancouver, BC, Canada.

Gunnarsson CL, Patel PA, Ernst FR. Evaluation of Hospital Complications and Costs Associated with Ultrasound Guided Paracentesis. Poster presented at ACG 2010 Annual Scientific Meeting October 18 – 20, 2010, Henry B. Gonzalez Convention Center, San Antonio, TX, USA.

Nasciben V, Rupprecht F, Moore M, Gunnarsson C. The economic impact of contour versus hand sewn suture and other mechanical staples in low anterior resections in colon rectal cancer surgery: Interim results using real world data from Premier’s hospital database. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Fullum T, Ladapo JA, Borah B, Gunnarsson C. A comparison of the clinical and economic outcomes for open versus minimally invasive appendectomy and colectomy: Evidence from a large commercial payer database. Surg Endosc. 2010;24:845–853.

Warren L, Ladapo JA, Borah B, Gunnarsson C. Open abdominal vs. minimally invasive laparoscopic and vaginal hysterectomy: Analysis of a large US payer measuring quality & cost of care. The Journal of Minimally Invasive Gynecology. 2009;16(5):581-588.

Gunnarsson C, Rizzo J, Hoccheiser L. The effects of laparoscopic surgery and nosocomial infections on the cost of care: Evidence from three common surgical procedures. Value in Health. 2009 Jan/Feb;12(1):47-54.

Hochheiser L, Moore M, Gunnarsson C, Ladapo J, Borah B. Regional disparities and economic outcomes associated with minimally invasive and conventional surgeries of the chest, abdomen, and pelvis. Poster presented at ISPOR - 14th Annual International Meeting, May 16 – 20, 2009, Orlando, FL, USA.

Warren L, Ladapo JA, Borah B, Gunnarsson C. Abdominal vs. laparoscopic and vaginal hysterectomy: Analysis of a large US payer measuring quality & cost of care. Podium presentation at Global Congress of Minimally Invasive Gynecology (AAGL): 38th Annual Meeting. November 15 – 19, 2009, Gaylord Palms Resort, Orlando, FL, USA.

Brill A, Ghosh K, Gunnarsson C, Rizzo J, Fullum T, Maxey C, Brossette S. The effects of laparoscopic cholecystectomy, hysterectomy, and appendectomy on nosocomial infection risks. Journal of Surgical Endoscopy. 2008 April;22(4):1112- 1118.

Brill A, Ghosh K, Gunnarsson C, Rizzo J, Fullum T, Maxey C, Brossette S. The effects of laparoscopic surgery and nosocomial infections on the cost of care: Evidence from three common surgical procedures. Poster presented at ISPOR - 10th Annual European Congress, October 2007.

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Orthopedics

Chen J, Rizzo J, Parasuraman S, Gunnarsson C. Racial Disparities in Receiving Total Hip/Knee Replacement Surgery---The Effect of Hospital Admission Sources. J Health Care Poor Underserved Accepted for publication Feb 2012

Kotlarz H, Chen J, Rizzo J, Gunnarsson C. Racial and ethnic disparities in total knee replacement surgery. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Kotlarz H, Chen J, Rizzo J, Gunnarsson C. Racial and ethnic disparities in total hip replacement surgery. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Peoples S, Rizzo J, Kotlarz H. The economic value of improvements in hip replacement devices. Poster presented at ISPOR - 13th Annual International Meeting, May 3-7, 2008, Toronto, Ontario, Canada.

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Osteoarthritis

Kotlarz H, Gunnarsson C, Fang H, Rizzo J. Osteoarthritis and absenteeism costs: Evidence from U.S. National Survey Data. JOEM. 2010 Mar;52(3):263-268. Article accepted for Continuing Medical Education (CME).

Kotlarz H, Gunnarsson C, Fang H, Rizzo J. Insurer and out-of-pocket costs of osteoarthritis: Evidence from national survey data: Arthritis & Rheumatism. 2009 Dec;60(12):3546-3553.

Kotlarz H, Gunnarsson C, Rizzo J. Osteoarthritis and job absenteeism costs: Evidence from U.S. national survey data. Poster presented at ISPOR - 11th Annual European Congress, November 8-11, 2008, Athens, Greece.

Kotlarz H, Gunnarsson C, Rizzo J. The direct health care costs of osteoarthritis: Evidence from U.S. national survey data. Poster presented at ISPOR - 11th Annual European Congress, November 8-11, 2008, Athens, Greece.

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Rheumatology

Lofland JH, Gunnarsson CL, Mallow PJ, Rizzo JA, Feagan B. Cost-per-Responder Analysis of Infliximab Compared to Adalimumab among individuals with Moderate to Severe Ulcerative Colitis. Poster presented ACG 2011 Annual Scientific Meeting, October 28 - November 2, 2011, National Harbor, Washington, DC, USA.

Tandon N, David G, Kavanaugh A, Gunnarsson C. The Impact of Biologics for the Treatment of Rheumatoid Arthritis: The Case of Total Hip and Knee Replacement Surgery. Poster presented at the ACR/ARHP 2011 Scientific Meeting, November 5 - 9, 2011, McCormick Place, Chicago, IL, USA.

Rizzo JA, Chen J, Ladapo J, Gunnarsson C, Lofland J. The Direct Healthcare Insurer and Out-of-Pocket Expenditures of Psoriasis: Evidence from United States National Survey. Accepted for publication in the Journal of Dermatological Treatment.

Ellis L, Tandon N, Mody S, Doshi D, Beak C, Gunnarsson CL. Characteristics of Golimumab Utilization and Costs in a Specialty Pharmacy Provider (SPP) Setting. Poster presented at the ISPOR 16th Annual International Meeting May 21 – 25, 2011 Hilton Baltimore, Baltimore, MD, USA.

Tandon N, Saulnier A, Gunnarsson CL. Characteristics of Golimumab Utilization in a Large National Payer Database. Poster presented at the ISPOR 16th Annual International Meeting May 21 – 25, 2011 Hilton Baltimore, Baltimore, MD, USA.

Tandon N, Carter C, Haas S, Gunnarsson CL. GE Centricity Electronic Medical Records Study: Comorbidities and Biologic Experience Among Patients Receiving Golimumab. Poster presented at the ISPOR 16th Annual International Meeting May 21 – 25, 2011 Hilton Baltimore, Baltimore, MD, USA.

Carter C, Haas S, Gunnarsson CL, Rizzo JA, Ingham M Longitudinal Analysis of Infliximab Dosing and Infusion Intervals Across 30 Infusions. Poster presented at the ISPOR 16th Annual International Meeting May 21 – 25, 2011 Hilton Baltimore, Baltimore, MD, USA.

Carter C, Gunnarsson CL, Rizzo JA, Bolge S, Ingham M. Economic Consequences of Under-Utilization with Tumor Necrosis Factor Inhibitors in Rheumatoid Arthritis Patients. Poster presented at the ISPOR 16th Annual International Meeting May 21 – 25, 2011 Hilton Baltimore, Baltimore, MD, USA.

Carter CT, Rizzo JA, Gunnarsson CL, Bolge SC. Consistency of Maintenance Infliximab Weight-Based Dosing and Administration Patterns in Commercially Insured Patients with Rheumatoid Arthritis. Poster presented at AMCP's 23rd Annual Meeting & Showcase April 27 - 30, 2011, Minneapolis Convention Center, Minneapolis, MN, USA.

Rizzo J, Gunnarsson C, Fang H, Carter C, Bolge S, Mody S. Differences in demographics and pre-index health care utilization and costs in patients with rheumatoid arthritis taking anti-TNF biologics during the first year of persistent therapy. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Rizzo J, Gunnarsson C, Fang H, Carter C, Bolge S. Alternative approaches for estimating drug dosing in the treatment of rheumatoid arthritis: The case of Infliximab. Poster presented at ISPOR - 15th Annual International Meeting. May 15- 19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Rizzo J, Gunnarsson C, Fang H, Carter C, Bolge S, McKenzie RS. An event-level analysis of prescription refill intervals for Adalimumab and Etanercept in the treatment of rheumatoid arthritis. Poster presented at ISPOR - Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Bolge S, Lofland J, Naim A, Rizzo J, Gunnarsson C, Chen J. The direct medical costs of rheumatoid arthritis: Evidence from United States national survey data. Poster presented at ISPOR - 15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

Naim A, Lofland J, Bolge S, Rizzo J, Gunnarsson C, Chen J. The indirect costs associated with absenteeism of working adults with rheumatoid arthritis: Evidence from United States national survey data. Poster presented at ISPOR -15th Annual International Meeting. May 15-19, 2010. Hilton Atlanta, Atlanta, GA, USA.

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