Gregory S Cooper

Summary

Affiliation: Case Western Reserve University
Country: USA

Publications

  1. 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
  2. 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
  3. 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
  4. 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
  5. pmc Use of colonoscopy for polyp surveillance in Medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Case Western Reserve University and Case Comprehensive Cancer Center, Cleveland, Ohio
    Cancer 119:1800-7. 2013
  6. 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
  7. 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
  8. 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
  9. 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
  10. doi request reprint Immediate unprepared hydroflush colonoscopy for severe lower GI bleeding: a feasibility study
    Aparna Repaka
    Division of Gastroenterology and Liver Disease, Digestive Health Institute, University Hospitals Case Medical Center and Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 76:367-73. 2012

Collaborators

Detail Information

Publications59

  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. pmc Use of colonoscopy for polyp surveillance in Medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Case Western Reserve University and Case Comprehensive Cancer Center, Cleveland, Ohio
    Cancer 119:1800-7. 2013
    ..Professional society guidelines recommend follow-up colonoscopy for patients with resected colonic adenomas. However, adherence to guideline recommendations in routine clinical practice has not been well characterized...
  6. 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)...
  7. 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...
  8. 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...
  9. 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...
  10. doi request reprint Immediate unprepared hydroflush colonoscopy for severe lower GI bleeding: a feasibility study
    Aparna Repaka
    Division of Gastroenterology and Liver Disease, Digestive Health Institute, University Hospitals Case Medical Center and Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 76:367-73. 2012
    ....
  11. 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...
  12. doi request reprint Cancer stage comparison between dual Medicare-Medicaid eligibles using Medicaid as a supplemental health insurance program and low-income nonduals
    Siran M Koroukian
    Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, USA
    J Public Health Manag Pract 17:479-91. 2011
    ....
  13. 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...
  14. doi request reprint EUS and survival in patients with pancreatic cancer: a population-based study
    Saowanee Ngamruengphong
    Division of Gastroenterology, Mayo Clinic Arizona, Scottsdale, Arizona 85259, USA
    Gastrointest Endosc 72:78-83, 83.e1-2. 2010
    ..There is no direct evidence that EUS improves patient outcome...
  15. pmc Prevalence and predictors of interval colorectal cancers in medicare beneficiaries
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, Ohio 44106 5066, USA
    Cancer 118:3044-52. 2012
    ..After a colonoscopy that is negative for cancer, a subset of patients may be diagnosed with colorectal cancer, also termed interval cancer. The frequency and predictors have not been well studied in a population-based US cohort...
  16. doi request reprint A comparison of epidural analgesia and traditional pain management effects on survival and cancer recurrence after colectomy: a population-based study
    Kenneth C Cummings
    Department of General Anesthesiology, Anesthesiology Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
    Anesthesiology 116:797-806. 2012
    ..This study compared survival and cancer recurrence rates for resection of colorectal cancer between patients who received perioperative epidurals and those who did not...
  17. pmc Management of malignant colonic polyps: a population-based analysis of colonoscopic polypectomy versus surgery
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, Ohio 44106 5066, USA
    Cancer 118:651-9. 2012
    ..The management of colon polyps containing invasive carcinoma includes surgical resection or colonoscopic polypectomy. To date, there are very limited population-based data comparing outcomes with the 2 management approaches...
  18. 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...
  19. doi request reprint Examining the characteristics of unstaged colon and rectal cancer cases
    Julie L Worthington
    Division of Gastroenterology, Case Western Reserve University, Cleveland, OH 44106 4952, USA
    Cancer Detect Prev 32:251-8. 2008
    ..The objective of the study was to identify which stage components were missing, to characterize and to identify predictors of unstaged cancer, and to evaluate prognosis of unstaged in colon and rectal cancer patients...
  20. 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...
  21. 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...
  22. ncbi request reprint Success and shortcomings of a clinical care pathway in the management of acute nonvariceal upper gastrointestinal bleeding
    Patrick R Pfau
    Division of Gastroenterology, Department of Medicine, Quality Center, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106 5066, USA
    Am J Gastroenterol 99:425-31. 2004
    ..We sought to establish if a GI bleeding clinical care pathway could improve the quality and cost effectiveness of inpatient medical care...
  23. 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
    ....
  24. 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...
  25. 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...
  26. 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...
  27. ncbi request reprint Prediction of outcome in acute lower-gastrointestinal haemorrhage based on an artificial neural network: internal and external validation of a predictive model
    Ananya Das
    Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH 44106 5066, USA
    Lancet 362:1261-6. 2003
    ..We investigated whether ANN models using information available during triage could predict clinical outcome in patients with this disorder...
  28. 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...
  29. 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...
  30. 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...
  31. pmc Patient-rated importance and receipt of information for colorectal cancer screening
    Susan A Flocke
    Case Western Reserve University, Cleveland, Ohio, USA
    Cancer Epidemiol Biomarkers Prev 20:2168-73. 2011
    ..This study examines and compares both patient rated importance and physician communication of key information elements about CRC screening during annual physical examinations...
  32. doi request reprint Colorectal cancer screening: update for 2011
    Linda C Cummings
    Department of Medicine, Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, OH, USA
    Semin Oncol 38:483-9. 2011
    ..In addition, other new modalities such as computed tomography colonography (CTC), capsule endoscopy, fecal immunochemical tests, and fecal DNA tests may offer less invasive screening options for patients who decline colonoscopy...
  33. 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...
  34. 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...
  35. 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...
  36. 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...
  37. 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...
  38. doi request reprint Complications following colonoscopy with anesthesia assistance: a population-based analysis
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals Case Medical Center, Cleveland, OH 44106, USA
    JAMA Intern Med 173:551-6. 2013
    ..The incidence of these complications has not been well studied at a population level...
  39. pmc Association of insulin and insulin-like growth factors with Barrett's oesophagus
    Katarina B Greer
    Division of Gastroenterology and Liver Disease, University Hospitals Case Medical Center, Cleveland, Ohio, USA
    Gut 61:665-72. 2012
    ..The relationship of insulin, IGF-1 and IGF binding proteins (IGFBP) with Barrett's oesophagus (BO) has not been well examined...
  40. 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...
  41. 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...
  42. 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...
  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...
  44. doi request reprint Use and impact of early endoscopy in elderly patients with peptic ulcer hemorrhage: a population-based analysis
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals, Case Medical Center, Cleveland, Ohio 44106 5066, USA
    Gastrointest Endosc 70:229-35. 2009
    ..However, the use and outcomes have not been studied in a national, U.S.-based sample...
  45. 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...
  46. ncbi request reprint Gastroesophageal reflux disease-associated esophagitis induces endogenous cytokine production leading to motor abnormalities
    Florian Rieder
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio
    Gastroenterology 132:154-65. 2007
    ....
  47. doi request reprint ColoRectal Cancer Predicted Risk Online (CRC-PRO) Calculator Using Data from the Multi-Ethnic Cohort Study
    Brian J Wells
    the Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH University Hospitals Case Medical Center, Cleveland OH Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, Cleveland, OH
    J Am Board Fam Med 27:42-55. 2014
    ..The National Cancer Institute's CRC risk calculator was created by Freedman et al using case control data...
  48. doi request reprint Risk of cancer after lumbar fusion surgery with recombinant human bone morphogenic protein-2 (rh-BMP-2)
    Gregory S Cooper
    From the Division of Gastroenterology University Hospitals Case Medical Center, and the Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH
    Spine (Phila Pa 1976) 38:1862-8. 2013
    ..Retrospective cohort study among Medicare beneficiaries with lumbar spinal fusion surgery...
  49. ncbi request reprint Editorial: Detection of small polyps: much ado about nothing?
    Linda C Cummings
    Am J Gastroenterol 105:2586-7. 2010
    ..Because of incomplete understanding of the natural history of diminutive adenomas, further study is needed to determine the long-term impact of the use of CTC for colorectal cancer screening...
  50. 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...
  51. ncbi request reprint Patient tolerance and acceptance of unsedated ultrathin esophagoscopy
    Ashley L Faulx
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 55:620-3. 2002
    ..Unsedated endoscopy has not gained wide acceptance in the United States. Factors that may predict tolerance and acceptance of unsedated endoscopy are ill defined...
  52. ncbi request reprint A prospective evaluation of outcome in patients referred for PEG placement
    Kenji Kobayashi
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106 5066, USA
    Gastrointest Endosc 55:500-6. 2002
    ..The primary aim of this study was to prospectively identify factors predictive of survival in patients referred for PEG placement...
  53. 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...
  54. 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...
  55. 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...
  56. 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
  57. 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...
  58. ncbi request reprint Colonoscopy: a tarnished gold standard?
    Gregory S Cooper
    Gastroenterology 132:2588-90. 2007
  59. 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