J K Marshall

Summary

Affiliation: McMaster University
Country: Canada

Publications

  1. ncbi request reprint The gastrointestinal tolerability and safety of oral bisphosphonates
    John K Marshall
    Division of Gastroenterology 4W8, Medical Centre, McMaster University, 1200 Main Street West, Hamilton, Ontario L8N 3Z5, Canada
    Expert Opin Drug Saf 1:71-8. 2002
  2. pmc Finding inflammatory bowel disease genes will not lead to a cure
    John K Marshall
    Division of Gastroenterology, McMaster University, Hamilton, Ontario
    Can J Gastroenterol 20:643-4. 2006
  3. ncbi request reprint Postinfectious irritable bowel syndrome after a food-borne outbreak of acute gastroenteritis attributed to a viral pathogen
    John K Marshall
    Division of Gastroenterology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
    Clin Gastroenterol Hepatol 5:457-60. 2007
  4. doi request reprint Rectal 5-aminosalicylic acid for maintenance of remission in ulcerative colitis
    John K Marshall
    Division of Gastroenterology, McMaster University, Hamilton, Canada
    Cochrane Database Syst Rev 11:CD004118. 2012
  5. pmc An empirical comparison of methods for analyzing correlated data from a discrete choice survey to elicit patient preference for colorectal cancer screening
    Ji Cheng
    Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada
    BMC Med Res Methodol 12:15. 2012
  6. ncbi request reprint Intestinal permeability in patients with irritable bowel syndrome after a waterborne outbreak of acute gastroenteritis in Walkerton, Ontario
    J K Marshall
    Department of Medicine, Division of Gastroenterology, McMaster University, Hamilton, Ontario, Canada
    Aliment Pharmacol Ther 20:1317-22. 2004
  7. pmc Impact of reference-based pricing for histamine-2 receptor antagonists and restricted access for proton pump inhibitors in British Columbia
    John K Marshall
    Department of Medicine, McMaster University, Hamilton, Ont
    CMAJ 166:1655-62. 2002
  8. ncbi request reprint Economic analysis of home vs hospital-based parenteral nutrition in Ontario, Canada
    John K Marshall
    Department of Medicine, Division of Gastroenterology, McMaster University Medical Center, Hamilton, Ontario, Canada
    JPEN J Parenter Enteral Nutr 29:266-9. 2005
  9. ncbi request reprint Randomized active and placebo-controlled endoscopy study of a novel protected formulation of oral alendronate
    John K Marshall
    Division of Gastroenterology 4W8, McMaster University Medical Centre, 1200 Main Street West, Hamilton, Ontario, L8N 3Z5, Canada
    Dig Dis Sci 51:864-8. 2006
  10. pmc Reporting ileocolonoscopy in inflammatory bowel disease
    J K Marshall
    Division of Gastroenterology, McMaster University Medical Centre, Hamilton, Ontario
    Can J Gastroenterol 20:399-400. 2006

Collaborators

Detail Information

Publications49

  1. ncbi request reprint The gastrointestinal tolerability and safety of oral bisphosphonates
    John K Marshall
    Division of Gastroenterology 4W8, Medical Centre, McMaster University, 1200 Main Street West, Hamilton, Ontario L8N 3Z5, Canada
    Expert Opin Drug Saf 1:71-8. 2002
    ..However, physicians and patients should consider risk factors for oesophageal injury when initiating therapy...
  2. pmc Finding inflammatory bowel disease genes will not lead to a cure
    John K Marshall
    Division of Gastroenterology, McMaster University, Hamilton, Ontario
    Can J Gastroenterol 20:643-4. 2006
  3. ncbi request reprint Postinfectious irritable bowel syndrome after a food-borne outbreak of acute gastroenteritis attributed to a viral pathogen
    John K Marshall
    Division of Gastroenterology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
    Clin Gastroenterol Hepatol 5:457-60. 2007
    ..A prospective study was undertaken to determine the incidence and natural history of postinfectious irritable bowel syndrome (PI-IBS)...
  4. doi request reprint Rectal 5-aminosalicylic acid for maintenance of remission in ulcerative colitis
    John K Marshall
    Division of Gastroenterology, McMaster University, Hamilton, Canada
    Cochrane Database Syst Rev 11:CD004118. 2012
    ..When the proximal margin of inflammation is distal to the splenic flexure, 5-ASA therapy can be delivered as a rectal suppository, foam or liquid enema...
  5. pmc An empirical comparison of methods for analyzing correlated data from a discrete choice survey to elicit patient preference for colorectal cancer screening
    Ji Cheng
    Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada
    BMC Med Res Methodol 12:15. 2012
    ....
  6. ncbi request reprint Intestinal permeability in patients with irritable bowel syndrome after a waterborne outbreak of acute gastroenteritis in Walkerton, Ontario
    J K Marshall
    Department of Medicine, Division of Gastroenterology, McMaster University, Hamilton, Ontario, Canada
    Aliment Pharmacol Ther 20:1317-22. 2004
    ..Post-infectious irritable bowel syndrome is a common clinical phenomenon of uncertain aetiology...
  7. pmc Impact of reference-based pricing for histamine-2 receptor antagonists and restricted access for proton pump inhibitors in British Columbia
    John K Marshall
    Department of Medicine, McMaster University, Hamilton, Ont
    CMAJ 166:1655-62. 2002
    ..We evaluated the effect of reference-based pricing for H2RAs and special authority for PPIs on dispensing and reimbursement for senior citizen beneficiaries of BC Pharmacare...
  8. ncbi request reprint Economic analysis of home vs hospital-based parenteral nutrition in Ontario, Canada
    John K Marshall
    Department of Medicine, Division of Gastroenterology, McMaster University Medical Center, Hamilton, Ontario, Canada
    JPEN J Parenter Enteral Nutr 29:266-9. 2005
    ..We undertook a retrospective cohort study of patients transferred from hospital to home while receiving home parenteral nutrition (PN) to assess their costs of care...
  9. ncbi request reprint Randomized active and placebo-controlled endoscopy study of a novel protected formulation of oral alendronate
    John K Marshall
    Division of Gastroenterology 4W8, McMaster University Medical Centre, 1200 Main Street West, Hamilton, Ontario, L8N 3Z5, Canada
    Dig Dis Sci 51:864-8. 2006
    ..No differences in symptoms or adverse events were observed. In conclusion, a novel protected formulation of oral alendronate is less likely than standard alendronate to induce severe mucosal injury to the upper gastrointestinal tract...
  10. pmc Reporting ileocolonoscopy in inflammatory bowel disease
    J K Marshall
    Division of Gastroenterology, McMaster University Medical Centre, Hamilton, Ontario
    Can J Gastroenterol 20:399-400. 2006
  11. ncbi request reprint Incidence and epidemiology of irritable bowel syndrome after a large waterborne outbreak of bacterial dysentery
    John K Marshall
    Department of Medicine, Division of Gastroenterology, McMaster University, Hamilton, Ontario, Canada
    Gastroenterology 131:445-50; quiz 660. 2006
    ..To better define its incidence and epidemiology, a large cohort study was initiated after the contamination of a municipal water supply led to a large outbreak of acute Escherichia coli 0157:H7 and Campylobacter jejuni gastroenteritis...
  12. doi request reprint Eight year prognosis of postinfectious irritable bowel syndrome following waterborne bacterial dysentery
    John K Marshall
    Division of Gastroenterology, McMaster University Medical Centre, 1200 Main Street West, Hamilton, Ontario, Canada
    Gut 59:605-11. 2010
    ....
  13. doi request reprint An outbreak of acute bacterial gastroenteritis is associated with an increased incidence of irritable bowel syndrome in children
    Marroon Thabane
    Division of Gastroenterology, Department of Medicine, and Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
    Am J Gastroenterol 105:933-9. 2010
    ..We assessed this association among a cohort of children enrolled in the Walkerton Health Study (WHS)...
  14. doi request reprint Prevalence of uninvestigated dyspepsia 8 years after a large waterborne outbreak of bacterial dysentery: a cohort study
    Alexander C Ford
    Department of Medicine, Division of Gastroenterology, and Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
    Gastroenterology 138:1727-36; quiz e12. 2010
    ..We assessed prevalence of uninvestigated dyspepsia in a cohort of individuals, some of whom were exposed to bacterial dysentery in May 2000, as well as risk factors for dyspepsia in exposed individuals...
  15. doi request reprint Clustering and stability of functional lower gastrointestinal symptom after enteric infection
    M Thabane
    Division of Gastroenterology, Department of Medicine, Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
    Neurogastroenterol Motil 24:546-52, e252. 2012
    ....
  16. ncbi request reprint The incidence of irritable bowel syndrome among community subjects with previous acute enteric infection
    Mark R Borgaonkar
    Department of Medicine, Memorial University of Newfoundland, St John s, Newfoundland, Canada
    Dig Dis Sci 51:1026-32. 2006
    ..96; P = .02). The incidence of postinfectious IBS in community subjects is 3.7%. Fever during the AEI may be an important risk factor for this condition...
  17. ncbi request reprint A randomized controlled trial to assess alendronate-associated injury of the upper gastrointestinal tract
    J K Marshall
    Department of Medicine, McMaster University, Hamilton, Ontario, Canada
    Aliment Pharmacol Ther 14:1451-7. 2000
    ..Aminobisphosphonates are recommended for postmenopausal osteoporosis but have been associated with injury to the upper gastrointestinal tract...
  18. ncbi request reprint Systematic review and meta-analysis: The incidence and prognosis of post-infectious irritable bowel syndrome
    M Thabane
    Division of Gastroenterology, Department of Medicine, and Intestinal Diseases Research Program, McMaster University Hamilton, Ontario, Canada
    Aliment Pharmacol Ther 26:535-44. 2007
    ..Individual studies suggest that post-infectious irritable bowel syndrome is common, but symptoms gradually improve...
  19. ncbi request reprint A critical approach to clinical practice guidelines
    J K Marshall
    McMaster University, Hamilton, Canada
    Can J Gastroenterol 14:505-9. 2000
    ..A simple and practical nine-question approach to evaluating the quality, relevance and effectiveness of clinical practice guidelines is presented...
  20. ncbi request reprint LDP-02 (Millenium)
    J K Marshall
    Department of Medicine, McMaster University, Hamilton, Ontario, Canada
    Curr Opin Investig Drugs 2:502-4. 2001
    ..Assuming a successful launch, Lehman Brothers analysts estimated peak sales would occur in 2011 with sales at that time of US $250 million [319225]...
  21. ncbi request reprint Measuring patient preferences for colorectal cancer screening using a choice-format survey
    Deborah A Marshall
    McMaster University, Hamilton, ON, Canada
    Value Health 10:415-30. 2007
    ..Our objective is to examine patient preferences for CRC screening modalities and uptake rates using utility-based methods...
  22. doi request reprint How do physician assessments of patient preferences for colorectal cancer screening tests differ from actual preferences? A comparison in Canada and the United States using a stated-choice survey
    Deborah A Marshall
    Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ont, Canada
    Health Econ 18:1420-39. 2009
    ..We compared utility-based preferences for alternative CRC screening tests from a stated-preference discrete-choice survey of the general population and physicians in Canada and the United States...
  23. doi request reprint Patient outcomes after anti TNF-alpha drugs for Crohn's disease
    Nazila Assasi
    Programs for Assessment of Technology in Health Research Institute, St Joseph s Healthcare, Hamilton, 25 Main Street West, Suite 2000 ON, Canada
    Expert Rev Pharmacoecon Outcomes Res 10:163-75. 2010
    ..The review further considers the evidence for the harms and benefits associated with switching from one anti-TNF-alpha agent to another and strategies to optimize the timing of therapy...
  24. ncbi request reprint Canadian Consensus Conference on the management of gastroesophageal reflux disease in adults - update 2004
    David Armstrong
    Division of Gastroenterology, McMaster University, Hamilton
    Can J Gastroenterol 19:15-35. 2005
    ..Since the last Canadian Consensus Conference in 1996, GERD management has evolved substantially...
  25. ncbi request reprint Resource utilization for acute lower gastrointestinal hemorrhage: the Ontario GI bleed study
    Dan Comay
    Department of Medicine, McMaster University, Hamilton, Canada
    Can J Gastroenterol 16:677-82. 2002
    ..Resource utilization, length of stay (LOS) and direct medical costs were characterized in a cohort of patients admitted for nonmalignant LGIH to centres in Ontario...
  26. ncbi request reprint Ketotifen treatment of active colitis in patients with 5-aminosalicylate intolerance
    J K Marshall
    Department of Medicine, McMaster University, Hamilton, Ontario
    Can J Gastroenterol 12:273-5. 1998
    ..The authors' experience with ketotifen in three patients--one each with Crohn's disease, ulcerative colitis and collagenous colitis--who had demonstrated allergy to, or intolerance of, 5-aminosalicylic acid is reported...
  27. ncbi request reprint Increased intestinal permeability precedes the onset of Crohn's disease in a subject with familial risk
    E J Irvine
    Division of Gastroenterology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
    Gastroenterology 119:1740-4. 2000
    ..This observation provides support for the hypothesis that increased gut permeability to macromolecules is an early step in the pathogenesis of this disorder...
  28. ncbi request reprint Obscure gastrointestinal bleeding: an approach to management
    J K Marshall
    Department of Medicine, and Intestinal Disease Research Programme, McMaster University, Hamilton, Ontario, Canada
    Can J Gastroenterol 14:111-8. 2000
    ..A stepwise management algorithm that progresses from the history and physical examination to surgical exploration is offered to facilitate early and efficient diagnosis...
  29. ncbi request reprint Successful therapy of refractory erythema nodosum associated with Crohn's disease using potassium iodide
    J K Marshall
    Department of Medicine, McMaster University, Hamilton, Ontario
    Can J Gastroenterol 11:501-2. 1997
    ..While the mechanism of action of this agent is poorly understood, it appears to be an effective and nontoxic therapy for Crohn's-related erythema nodosum and warrants further evaluation in a placebo controlled trial...
  30. ncbi request reprint Test and treat strategies for Helicobacter pylori in uninvestigated dyspepsia: a Canadian economic analysis
    J K Marshall
    Division of Gastroenterology, McMaster University Medical Centre, Hamilton, Ontario, Canada
    Can J Gastroenterol 14:379-88. 2000
    ..Decision analysis was used to compare the cost effectiveness of empirical ranitidine with a test and treat strategy using either H pylori serology or the 13carbon-urea breath test (13C-UBT)...
  31. doi request reprint Genetic risk factors for post-infectious irritable bowel syndrome following a waterborne outbreak of gastroenteritis
    Alexandra Chloe Villani
    Division of Gastroenterology, Department of Medicine, McGill University, Montreal, Quebec, Canada
    Gastroenterology 138:1502-13. 2010
    ..2% of these developed IBS. We used this cohort to study genetic susceptibility to post-infectious (PI)-IBS...
  32. pmc Adherence to guidelines for surveillance colonoscopy in patients with ulcerative colitis at a Canadian quaternary care hospital
    Dan Kottachchi
    Department of Internal Medicine, McMaster University, Hamilton, ON, Canada
    Can J Gastroenterol 23:613-7. 2009
    ..Patients with ulcerative colitis (UC) are at high risk of colonic dysplasia. Therefore, surveillance colonoscopy to detect early dysplasia has been endorsed by many professional organizations...
  33. doi request reprint IgG₄-related sclerosing disease: a novel mimic of inflammatory bowel disease
    Neeraj Narula
    Division of Gastroenterology, Department of Medicine, Farncombe Family Digestive Health Research Institute, McMaster University, 1200 Main Street West, Hamilton, Ontario, Canada
    Dig Dis Sci 55:3047-51. 2010
    ..Awareness of IgG₄-related sclerosing disease is important, as it has been shown to mimic other conditions like malignancy. This review discusses IgG₄-related colitis and its potential for mimicking inflammatory bowel disease...
  34. doi request reprint Development and validation of a risk score for post-infectious irritable bowel syndrome
    Marroon Thabane
    Department of Medicine Division of Gastroenterology and The Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
    Am J Gastroenterol 104:2267-74. 2009
    ..We used observational data from the Walkerton Health Study (WHS) to develop and validate a risk score for post-infectious (PI) IBS...
  35. ncbi request reprint Incremental cost-effectiveness analysis comparing rofecoxib with nonselective NSAIDs in osteoarthritis: Ontario Ministry of Health perspective
    J K Marshall
    Department of Medicine, McMaster University, Hamilton, Ontario, Canada
    Pharmacoeconomics 19:1039-49. 2001
    ..by avoidance of gastrointestinal complications and reduced use of gastroprotective agents. Rofecoxib may offer increased benefit among patients at a higher risk of serious gastrointestinal events...
  36. ncbi request reprint Functional gastrointestinal disorders and mood disorders in patients with inactive inflammatory bowel disease: prevalence and impact on health
    Forough Farrokhyar
    Department of Surgery, Clinical Epidemiology and Biostatistics, McMaster University, Toronto, Ontario, Canada
    Inflamm Bowel Dis 12:38-46. 2006
    ..We assessed the prevalence of FGID symptoms and mood disorders in ambulatory patients with quiescent IBD and examined their impact on health-related quality of life (HRQOL) and use of health resources...
  37. ncbi request reprint Systematic review of the risk of enteric infection in patients taking acid suppression
    Jennifer Leonard
    Department of Medicine, Division of Gastroenterology, McMaster University, Hamilton, Ontario, Canada
    Am J Gastroenterol 102:2047-56; quiz 2057. 2007
    ..There have been concerns raised about the possible association of PPIs with enteric infections...
  38. pmc Post-infectious irritable bowel syndrome
    Marroon Thabane
    Division of Gastroenterology, McMaster University Medical Centre, Hamilton, Ontario, Canada
    World J Gastroenterol 15:3591-6. 2009
    ..However, PI-IBS remains a diagnosis of exclusion with no specific disease markers and, to date, no definitive therapy exists. The prognosis of PI-IBS appears favorable with spontaneous and gradual resolution of symptoms in most patients...
  39. pmc Should my patient with inflammatory bowel disease on immunosuppressive therapy be vaccinated against influenza virus?
    Neerja Narula
    Department of Medicine Division of Gastroenterology and Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
    Can J Gastroenterol 24:121-5. 2010
    ..The present article reviews the literature regarding the safety and efficacy of influenza vaccination in IBD patients receiving immunosuppressive therapy...
  40. pmc Photodynamic therapy for Barrett's esophagus with high-grade dysplasia: a cost-effectiveness analysis
    Dan Comay
    Department of Medicine, Divison of Gastroenterology, McMaster University, Hamilton, Ontario, Canada
    Can J Gastroenterol 21:217-22. 2007
    ..To assess the cost-effectiveness of photodynamic therapy (PDT) and esophagectomy (ESO) relative to surveillance (SURV) for patients with Barrett's esophagus (BE) and high-grade dysplasia (HGD)...
  41. ncbi request reprint CD23-mediated IgE transport across human intestinal epithelium: inhibition by blocking sites of translation or binding
    Yahong Tu
    Intestinal Disease Research Program, McMaster University, Hamilton, Ontario, Canada
    Gastroenterology 129:928-40. 2005
    ..The present study was designed to examine expression of CD23 by human epithelial cells, determine its isoform and regulation by interleukin (IL) 4, and identify the role of CD23 in transepithelial IgE transport...
  42. ncbi request reprint Use and misuse of cost-effectiveness terminology in the gastroenterology literature: a systematic review
    John K Marshall
    Department of Medicine, a McMaster University, Hamilton, Ontario, Canada
    Am J Gastroenterol 97:172-9. 2002
    ..True cost-effectiveness analysis considers both the costs and outcomes of alternative interventions. A systematic review of the gastroenterology literature was undertaken to evaluate how appropriately cost-effectiveness is assessed...
  43. ncbi request reprint Prospective comparison of small bowel meal with pneumocolon versus ileo-colonoscopy for the diagnosis of ileal Crohn's disease
    John K Marshall
    Department of Medicine Division of Gastroenterology, McMaster University, Hamilton, Ontario, Canada
    Am J Gastroenterol 99:1321-9. 2004
    ..A prospective study was undertaken to compare ileoscopy with biopsy to small bowel meal with pneumocolon (SBMP) in patients with suspected TI CD...
  44. ncbi request reprint 14 day endoscopy study comparing risedronate and alendronate in postmenopausal women stratified by Helicobacter pylori status
    Alan B R Thomson
    University of Alberta, Edmonton, Canada
    J Rheumatol 29:1965-74. 2002
    ..This study compared the incidence of gastric ulcers after treatment with risedronate, a pyridinyl bisphosphonate, or alendronate, a primary amino bisphosphonate, in healthy postmenopausal women stratified by Helicobacter pylori status...
  45. ncbi request reprint Long-term health sequelae following E. coli and campylobacter contamination of municipal water. Population sampling and assessing non-participation biases
    Amit X Garg
    Division of Nephrology, University of Western Ontario, London, Ontario
    Can J Public Health 96:125-30. 2005
    ..We explored whether the association between the acute exposure and preliminary long-term health outcomes may have been biased through differences between early- and late-recruited study participants...
  46. ncbi request reprint Canadian Association of Gastroenterology Clinical Practice Guidelines: the use of infliximab in Crohn's disease
    Remo Panaccione
    University of Calgary, Calgary, Canada
    Can J Gastroenterol 18:503-8. 2004
  47. ncbi request reprint Minimizing postcolonoscopy abdominal pain by using CO(2) insufflation: a prospective, randomized, double blind, controlled trial evaluating a new commercially available CO(2) delivery system
    Katica Sumanac
    McMaster University Medical Center, Hamilton, Ontario, Canada
    Gastrointest Endosc 56:190-4. 2002
    ..A commercially available CO(2) delivery system has only recently become available. The effects of CO(2) and air insufflation on residual bowel gas and postprocedure pain were compared...
  48. pmc The impact of reference pricing of nonsteroidal anti-inflammatory agents on the use and costs of analgesic drugs
    Paul V Grootendorst
    Faculty of Pharmacy, University of Toronto, ON, Canada
    Health Serv Res 40:1297-317. 2005
    ..To estimate the effect of reference pricing (RP) of nonsteroidal anti-inflammatory drugs (NSAIDs) on drug subsidy program and beneficiary expenditures on analgesic drugs...
  49. ncbi request reprint A semiquantitative stool antigen test for Helicobacter pylori: shedding new light?
    John K Marshall
    J Clin Gastroenterol 35:369-70. 2002