Gregory Cooper

Summary

Affiliation: Case Western Reserve University
Country: USA

Publications

  1. pmc Laparoscopic versus open colectomy for colon cancer in an older population: a cohort study
    Linda C Cummings
    Division of Gastroenterology and Liver Disease, Department of Medicine, University Hospitals Case Medical Center, 11100 Euclid Avenue, Mailstop 5066, Cleveland, Ohio 44106 5066, USA
    World J Surg Oncol 10:31. 2012
  2. ncbi request reprint The polyp detection rate of colonoscopy: a national study of Medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106 5066, USA
    Am J Med 118:1413. 2005
  3. ncbi request reprint Underuse of colorectal cancer screening in a cohort of Medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, Ohio 44106 5066, USA
    Cancer 112:293-9. 2008
  4. doi request reprint Receipt of guideline-recommended follow-up in older colorectal cancer survivors : a population-based analysis
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, Ohio 44106 5066, USA
    Cancer 113:2029-37. 2008
  5. doi request reprint Outpatient management of nonvariceal upper gastrointestinal hemorrhage: unexpected mortality in Medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, Ohio 44106 5066, USA
    Gastroenterology 136:108-14. 2009
  6. doi request reprint Receipt of previous diagnoses and endoscopy and outcome from esophageal adenocarcinoma: a population-based study with temporal trends
    Gregory S Cooper
    Division of Gastroenterology, Department of Medicine, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106 5066, USA
    Am J Gastroenterol 104:1356-62. 2009
  7. ncbi request reprint Primary care physician attitudes toward endoscopic screening for GERD symptoms and unsedated esophagoscopy
    Vikram Boolchand
    Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio, USA
    Gastrointest Endosc 63:228-33. 2006
  8. ncbi request reprint Prospective evaluation of 4-mm diameter endoscopes for esophagoscopy in sedated and unsedated patients
    Andrew Catanzaro
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 57:300-4. 2003
  9. ncbi request reprint The changing landscape of practice patterns regarding unsedated endoscopy and propofol use: a national Web survey
    Ashley L Faulx
    Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Ohio, USA
    Gastrointest Endosc 62:9-15. 2005
  10. ncbi request reprint Accuracy of a narrow-diameter battery-powered endoscope in sedated and unsedated patients
    Andrew Catanzaro
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106 1736, USA
    Gastrointest Endosc 55:484-7. 2002

Research Grants

  1. CLAIMS DATA TO MEASURE CANCER SURVEILLANCE PROCEDURES
    Gregory Cooper; Fiscal Year: 2001
  2. Large Database Research for Cancer Prevention & Control
    Gregory Cooper; Fiscal Year: 2006
  3. Training Program in Academic Gastroenterology
    Gregory Cooper; Fiscal Year: 2006
  4. Colonoscopy: Practice Patterns and Limitations
    Gregory S Cooper; Fiscal Year: 2010

Collaborators

Detail Information

Publications43

  1. pmc Laparoscopic versus open colectomy for colon cancer in an older population: a cohort study
    Linda C Cummings
    Division of Gastroenterology and Liver Disease, Department of Medicine, University Hospitals Case Medical Center, 11100 Euclid Avenue, Mailstop 5066, Cleveland, Ohio 44106 5066, USA
    World J Surg Oncol 10:31. 2012
    ..The goals of this cohort study were to identify predictors of laparoscopic colectomy in an older population in the United States and to compare short-term and long-term outcomes...
  2. ncbi request reprint The polyp detection rate of colonoscopy: a national study of Medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106 5066, USA
    Am J Med 118:1413. 2005
    ..These data may be informative in predicting resource allocation for therapeutic procedures associated with colonoscopy. Future studies should determine the use and yield of serial colonoscopies for polyp surveillance...
  3. ncbi request reprint Underuse of colorectal cancer screening in a cohort of Medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, Ohio 44106 5066, USA
    Cancer 112:293-9. 2008
    ..To the authors' knowledge, few population-based studies to date have considered the serial use of colorectal cancer screening tests, which are usually recommended at specific intervals...
  4. doi request reprint Receipt of guideline-recommended follow-up in older colorectal cancer survivors : a population-based analysis
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, Ohio 44106 5066, USA
    Cancer 113:2029-37. 2008
    ..The actual adherence to these guidelines as well as the potential overuse of testing in routine practice has not been well studied...
  5. doi request reprint Outpatient management of nonvariceal upper gastrointestinal hemorrhage: unexpected mortality in Medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, Ohio 44106 5066, USA
    Gastroenterology 136:108-14. 2009
    ..However, the true prevalence and outcomes of this practice have not been well evaluated in population-based studies...
  6. doi request reprint Receipt of previous diagnoses and endoscopy and outcome from esophageal adenocarcinoma: a population-based study with temporal trends
    Gregory S Cooper
    Division of Gastroenterology, Department of Medicine, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106 5066, USA
    Am J Gastroenterol 104:1356-62. 2009
    ..There are only limited data regarding the use, effectiveness, and temporal trends of this strategy...
  7. ncbi request reprint Primary care physician attitudes toward endoscopic screening for GERD symptoms and unsedated esophagoscopy
    Vikram Boolchand
    Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio, USA
    Gastrointest Endosc 63:228-33. 2006
    ..Unsedated esophagoscopy (UE) is a less costly alternative to standard EGD for identifying BE. The aim of this study was to determine the indications for EGD referral, the barriers to screening, and the interest in performing UE...
  8. ncbi request reprint Prospective evaluation of 4-mm diameter endoscopes for esophagoscopy in sedated and unsedated patients
    Andrew Catanzaro
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 57:300-4. 2003
    ..Patient tolerance for an unsedated examination with the 4-mm endoscopes was assessed and the performance characteristics of the battery-powered and video 4-mm endoscopes were compared...
  9. ncbi request reprint The changing landscape of practice patterns regarding unsedated endoscopy and propofol use: a national Web survey
    Ashley L Faulx
    Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Ohio, USA
    Gastrointest Endosc 62:9-15. 2005
    ..The aim was to determine national practice patterns of unsedated endoscopy and propofol sedation, and to assess endoscopists' attitudes toward unsedated screening with an electronic survey...
  10. ncbi request reprint Accuracy of a narrow-diameter battery-powered endoscope in sedated and unsedated patients
    Andrew Catanzaro
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106 1736, USA
    Gastrointest Endosc 55:484-7. 2002
    ..The use of such an instrument in an unsedated fashion has not been previously evaluated...
  11. ncbi request reprint Failure to screen: predictors and burden of emergency colorectal cancer resection
    Jessica C Diggs
    Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH 44106 4945, USA
    Am J Manag Care 13:157-64. 2007
    ..To evaluate predictors and burden of emergency colorectal cancer resection (E-CCR)...
  12. pmc Descriptive epidemiology of esophageal carcinoma in the Ohio Cancer Registry
    Linda C Cummings
    Division of Gastroenterology, Department of Medicine, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106 5066, USA
    Cancer Detect Prev 32:87-92. 2008
    ..Other aims were to evaluate the impact of race, age, gender, and histology on presenting stage, and to describe tobacco use history in EAC as documented in a cancer registry...
  13. ncbi request reprint Use of guideline recommended follow-up care in cancer survivors: routine or diagnostic indications?
    Gregory S Cooper
    Division of Gastroenterology and Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio 44106 5066, USA
    Med Care 44:590-4. 2006
    ..After potentially curative cancer treatment, patients may receive procedures for routine monitoring for recurrence or for evaluation of symptoms or signs...
  14. ncbi request reprint Endoscopic ultrasonography and prognosis of esophageal cancer
    Ananya Das
    Division of Gastroenterology, Mayo Clinic Scottsdale, Scottsdale, Arizona, USA
    Clin Gastroenterol Hepatol 4:695-700. 2006
    ..Our aim was to study the association of receipt of EUS and overall survival in a cohort of patients with esophageal cancer...
  15. ncbi request reprint Temporal trend in relative risk of second primary colorectal cancer
    Ananya Das
    Division of Gastroenterology, Mayo Clinic Scottsdale, Scottsdale, Arizona 85259, and Division of Gastroenterology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
    Am J Gastroenterol 101:1342-7. 2006
    ..Thus, it is likely that the risk for second primary CRC also has changed over the years...
  16. ncbi request reprint Con: screening colonoscopy in the extreme elderly is not a wise choice
    Gregory S Cooper
    Medicine Oncology and Epidemiology and Biostatistics Case Western Reserve University Cleveland, Ohio, USA
    Am J Gastroenterol 101:1715-7; discussion 1717-8. 2006
  17. ncbi request reprint Studying radiation therapy using SEER-Medicare-linked data
    Beth A Virnig
    Division of Health Services Research and Policy, University of Minnesota, Minneapolis, Minnesota 55455, USA
    Med Care 40:IV-49-54. 2002
    ..Numerous studies have used the SEER or Medicare data to assess the use of radiation therapy. However, the completeness of these data has not been evaluated...
  18. ncbi request reprint Colorectal screening after polypectomy: a national survey study of primary care physicians
    Vikram Boolchand
    University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio, USA
    Ann Intern Med 145:654-9. 2006
    ..Recommendations by primary care physicians for colorectal screening after polypectomy will influence rates of colonoscopy in open-access systems that do not require consultation by a gastroenterologist before colonoscopy...
  19. pmc Colorectal cancer screening in the elderly population: disparities by dual Medicare-Medicaid enrollment status
    Siran M Koroukian
    Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, Cleveland, OH 44106 4945, USA
    Health Serv Res 41:2136-54. 2006
    ..To assess the disparities in colorectal cancer (CRC) screening between elderly dual Medicare-Medicaid enrollees (or duals), the most vulnerable subgroup of the Medicare population, and nonduals...
  20. ncbi request reprint Mycobacterium other than tuberculosis (MOTT) infection: an emerging disease in infliximab-treated patients
    Edsel Maurice T Salvana
    Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University and University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106 5083, USA
    J Infect 55:484-7. 2007
    ....
  21. ncbi request reprint Survival after hepatic resection in metastatic colorectal cancer: a population-based study
    Linda C Cummings
    Division of Gastroenterology, Department of Medicine, University Hospitals Case Medical Center, Cleveland, Ohio 44106, USA
    Cancer 109:718-26. 2007
    ..For the current study, a population-based database was used to compare the survival of patients with liver metastases from colorectal cancer who did and did not undergo hepatectomy...
  22. ncbi request reprint The utility of administrative data for measuring adherence to cancer surveillance care guidelines
    Gregory S Cooper
    Case Western Reserve University, Cleveland, Ohio 44106 5066 and Henry Ford Health System, Detroit, Michigan, USA
    Med Care 45:66-72. 2007
    ..Administrative data represent an alternative approach that may encompass larger numbers of patients with relatively low incremental costs...
  23. ncbi request reprint Temporal trends in colorectal procedure use after colorectal cancer resection
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals of Cleveland and the Department of Epidemiology and Biostatistics and the Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
    Gastrointest Endosc 64:933-40. 2006
    ..After curative cancer resection, routine colon surveillance is recommended. It is not known whether trends over time in cancer survivors parallel that of the general population...
  24. ncbi request reprint The sensitivity of Medicare data for identifying incident cases of invasive melanoma (United States)
    David A Barzilai
    Skin Diseases Research Center, University Hospitals of Cleveland, Case Western Reserve University, Cleveland OH 44106, USA
    Cancer Causes Control 15:179-84. 2004
    ..The completeness of Medicare claims for identifying patients with melanoma for purposes of conducting population-based studies of melanoma is unknown...
  25. ncbi request reprint Utility of the SEER-Medicare data to identify chemotherapy use
    Joan L Warren
    Applied Research Program, National Cancer Institute, Bethesda, Maryland 20892 7344
    Med Care 40:IV-55-61. 2002
    ..However, the validity and completeness of these data as a source of information has not been established...
  26. ncbi request reprint Use of SEER-Medicare data for measuring cancer surgery
    Gregory S Cooper
    Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
    Med Care 40:IV-43-8. 2002
    ..The accuracy and completeness of the SEER-Medicare data for measuring cancer-related therapy have not been extensively evaluated...
  27. ncbi request reprint Racial disparities in the use of and indications for colorectal procedures in Medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals of Cleveland, 11100 Euclid Avenue, Cleveland, OH 44106 5066, USA
    Cancer 100:418-24. 2004
    ..African Americans are diagnosed more frequently with colorectal carcinoma at a later stage compared with Caucasians. One potential reason for the disparity is a lower rate of screening examinations...
  28. ncbi request reprint Association of ampullary and colorectal malignancies
    Ananya Das
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106, USA
    Cancer 100:524-30. 2004
    ....
  29. ncbi request reprint Measuring breast, colorectal, and prostate cancer screening with medicare claims data
    Jean L Freeman
    Sealy Center on Aging, University of Texas Medical Branch, Galveston, Texas 77555 0460, USA
    Med Care 40:IV-36-42. 2002
    ..Medicare claims may be a useful source of data when screening older populations, but they are limited in terms of completeness and the ability to distinguish screening tests from those provided for diagnosis or surveillance...
  30. ncbi request reprint Geographic and patient variation in receipt of surveillance procedures after local excision of cutaneous melanoma
    David A Barzilai
    Department of Epidemiology and Biostatistics and Skin Disease Research Center, University Hospitals of Cleveland, and Case Western Reserve University, Cleveland, Ohio 44106, USA
    J Invest Dermatol 122:246-55. 2004
    ..Further studies are needed to determine the etiology and impact of such disparities, and the influence of surveillance procedures on morbidity and mortality...
  31. ncbi request reprint Geographic variation among Medicare beneficiaries in the use of colorectal carcinoma screening procedures
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals of Cleveland, Cleveland, Ohio 044106 5066, USA
    Am J Gastroenterol 99:1544-50. 2004
    ..To study geographic variation in the use of recommended screening procedures for colorectal carcinoma...
  32. ncbi request reprint Receipt of colorectal testing prior to colorectal carcinoma diagnosis
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals of Cleveland, Cleveland, Ohio 44106 5066, USA
    Cancer 103:696-701. 2005
    ..In addition, the association of disease stage at the time of diagnosis with previous procedure use has not been studied previously at a population level...
  33. ncbi request reprint Association of prediagnosis endoscopy with stage and survival in adenocarcinoma of the esophagus and gastric cardia
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals of Cleveland, Cleveland, Ohio 44106, USA
    Cancer 95:32-8. 2002
    ..However, the actual use and clinical impact of upper gastrointestinal endoscopy in screening and surveillance for Barrett esophagus are unknown...
  34. ncbi request reprint Use of preventive services by Medicare fee-for-service beneficiaries: does spillover from managed care matter?
    Siran M Koroukian
    Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106 4945, USA
    Med Care 43:445-52. 2005
    ..However, the extent to which MCA is associated with the use of cancer screening by fee-for-service beneficiaries (FFS) is unclear...
  35. ncbi request reprint Use of Medicare claims data to measure county-level variation in breast carcinoma incidence and mammography rates
    Gregory S Cooper
    Department of Medicine, Cancer Research Center, Case Western Reserve University, Cleveland, OH 44106, USA
    Cancer Detect Prev 26:197-202. 2002
    ..National-level population-based data about breast carcinoma incidence and its association with screening mammography are currently not available...
  36. ncbi request reprint Artificial neural network as a predictive instrument in patients with acute nonvariceal upper gastrointestinal hemorrhage
    Ananya Das
    Divisions of Gastroenterology, Mayo Clinic Arizona, Scottsdale, Arizona, USA
    Gastroenterology 134:65-74. 2008
    ..Triage of patients with acute upper gastrointestinal hemorrhage (UGIH) has traditionally required urgent upper endoscopy. The aim of this study is to evaluate the use of artificial neural network for nonendoscopic triage...
  37. ncbi request reprint Effectiveness of open-access endoscopy in routine primary-care practice
    Roger J Charles
    The Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Ohio 44106, USA
    Gastrointest Endosc 57:183-6. 2003
    ..However, the effect of open-access endoscopy on the care of patients in routine clinical practice has not been studied...
  38. ncbi request reprint Colonoscopy: a tarnished gold standard?
    Gregory S Cooper
    Gastroenterology 132:2588-90. 2007
  39. ncbi request reprint Endoscopic screening and surveillance for Barrett's esophagus: can claims data determine its effectiveness?
    Gregory S Cooper
    Gastrointest Endosc 57:914-6. 2003
  40. pmc Ability of Medicaid claims data to identify incident cases of breast cancer in the Ohio Medicaid population
    Siran M Koroukian
    Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, OH 44106 4945, USA
    Health Serv Res 38:947-60. 2003
    ..The use of Medicaid data to study cancer-related outcomes would be highly desirable. However, the accuracy of Medicaid claims data in the identification of incident cases of breast cancer is unknown...
  41. ncbi request reprint Diagnosis and treatment of gastroesophageal reflux disease in Ohio Medicaid patients: practice patterns and temporal trends
    Gregory S Cooper
    Department of Medicine, University Hospitals of Cleveland, Department of Epidemiology and Biostatistics, Case Western Reserve University School of Medicine, Cleveland, OH, USA
    Pharmacoepidemiol Drug Saf 13:21-7. 2004
    ..There is a paucity of data about the use of procedures and prescription medications in the treatment of gastroesophageal reflux disease (GERD) in actual clinical practice...
  42. ncbi request reprint The yield of bleeding scans in acute lower gastrointestinal hemorrhage
    Gregory D Olds
    Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH 44106 5066, USA
    J Clin Gastroenterol 39:273-7. 2005
    ..Our objective was to evaluate the accuracy of TRBC scintigraphy in clinical day-to-day practice at our institution and to determine predictors of a positive test...
  43. ncbi request reprint Correlation of EUS measurement with pathologic assessment of neoadjuvant therapy response in esophageal carcinoma
    Joseph Willis
    Department of Pathology, University Hospitals of Cleveland Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 55:655-61. 2002
    ..The aim of this study was to determine whether tumor changes measured by EUS correspond to pathologically assessed chemoradiotherapy-induced tumor regression...

Research Grants7

  1. CLAIMS DATA TO MEASURE CANCER SURVEILLANCE PROCEDURES
    Gregory Cooper; Fiscal Year: 2001
    ..abstract_text> ..
  2. Large Database Research for Cancer Prevention & Control
    Gregory Cooper; Fiscal Year: 2006
    ..abstract_text> ..
  3. Training Program in Academic Gastroenterology
    Gregory Cooper; Fiscal Year: 2006
    ..After that, 1 or 2 subsequent years may be offered to selected trainees, to be supported by other individual or institutional training grants, or grants to which the trainee will apply during his/her official training period. ..
  4. Colonoscopy: Practice Patterns and Limitations
    Gregory S Cooper; Fiscal Year: 2010
    ....