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J. Walker · SciRah

Researcher profile · Semantic Scholar

J. Walker

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J. Walker — researcher profile on SciRah

h-index: 53
Works: 224
Citations: 9,647

Most-cited papers

Increased Burden of Psychiatric Disorders in Inflammatory Bowel Disease.
C. Bernstein, C. Hitchon, R. Walld, J. Bolton +10 more
2018Inflammatory Bowel Diseases232 citations Open access
Semantic Scholar
Increased incidence of psychiatric disorders in immune-mediated inflammatory disease.
R. Marrie, R. Walld, J. Bolton, J. Sareen +9 more
2017Journal of Psychosomatic Research170 citations Open access
Semantic Scholar
Anxiety Associated with Colonoscopy and Flexible Sigmoidoscopy: A Systematic Review
Chengyue Yang, Vaelan Sriranjan, A. Abou-Setta, W. Poluha +2 more
2018American Journal of Gastroenterology131 citations Open access
Semantic Scholar
Increased Burden of Psychiatric Disorders in Rheumatoid Arthritis
R. Marrie, C. Hitchon, R. Walld, S. Patten +9 more
2018Arthritis care & research130 citations Open access
Semantic Scholar
Rising incidence of psychiatric disorders before diagnosis of immune-mediated inflammatory disease
R. Marrie, R. Walld, James M. Bolton, J. Sareen +9 more
2017Epidemiology and Psychiatric Sciences122 citations Open access
Semantic Scholar
Is it gluten-free? Relationship between self-reported gluten-free diet adherence and knowledge of gluten content of foods
J. Silvester, D. Weiten, L. Graff, J. Walker +1 more
2016Nutrition (Burbank, Los Angeles County, Calif.)107 citations Open access
Semantic Scholar
Living gluten-free: adherence, knowledge, lifestyle adaptations and feelings towards a gluten-free diet.
J. Silvester, D. Weiten, L. Graff, J. Walker +1 more
2016Journal of human nutrition and dietetics (Print)103 citations
Semantic Scholar
What Are Adults With Inflammatory Bowel Disease (IBD) Eating? A Closer Look at the Dietary Habits of a Population-Based Canadian IBD Cohort.
K. Vagianos, I. Clara, R. Carr, L. Graff +6 more
2016JPEN - Journal of Parenteral and Enteral Nutrition97 citations
Semantic Scholar
Comorbid anxiety, depression, and cognition in MS and other immune-mediated disorders
Christiane E Whitehouse, J. Fisk, C. Bernstein, L. Berrigan +9 more
2019Neurology95 citations Open access
Semantic Scholar
The Validity and Reliability of Screening Measures for Depression and Anxiety Disorders in Inflammatory Bowel Disease.
C. Bernstein, Lixia Zhang, L. Lix, L. Graff +9 more
2018Inflammatory Bowel Diseases95 citations Open access
Semantic Scholar
Systematic Review and Meta-analysis of Interventions for Depression and Anxiety in Persons With Rheumatoid Arthritis
Kirsten M. Fiest, C. Hitchon, C. Bernstein, C. Peschken +8 more
2017Journal of clinical rheumatology88 citations Open access
Semantic Scholar
Factors Associated with Anxiety About Colonoscopy: The Preparation, the Procedure, and the Anticipated Findings
L. Shafer, J. Walker, Celeste Waldman, Chengyue Yang +8 more
2018Digestive Diseases and Sciences76 citations
Semantic Scholar
The association of fatigue, pain, depression and anxiety with work and activity impairment in immune mediated inflammatory diseases
M. Enns, C. Bernstein, K. Kroeker, L. Graff +6 more
2018PLoS ONE75 citations Open access
Semantic Scholar
Evidence of Bidirectional Associations Between Perceived Stress and Symptom Activity: A Prospective Longitudinal Investigation in Inflammatory Bowel Disease
Kathryn A Sexton, J. Walker, L. Graff, M. Bernstein +4 more
2017Inflammatory Bowel Diseases75 citations
Semantic Scholar
Performance of administrative case definitions for depression and anxiety in inflammatory bowel disease.
R. Marrie, J. Walker, L. Graff, L. Lix +4 more
2016Journal of Psychosomatic Research59 citations
Semantic Scholar
Estimating annual prevalence of depression and anxiety disorder in multiple sclerosis using administrative data
R. Marrie, R. Walld, J. Bolton, J. Sareen +14 more
2017BMC Research Notes52 citations Open access
Semantic Scholar
Effects of Psychiatric Comorbidity in Immune-Mediated Inflammatory Disease: Protocol for a Prospective Study
R. Marrie, L. Graff, J. Walker, J. Fisk +13 more
2018JMIR Research Protocols49 citations Open access
Semantic Scholar
The Inflammatory Bowel Disease Symptom Inventory: A Patient-report Scale for Research and Clinical Application.
Kathryn A Sexton, J. Walker, L. Targownik, L. Graff +7 more
2019Inflammatory Bowel Diseases39 citations Open access
Semantic Scholar
Evaluating the quality of perinatal anxiety information available online
Paige L Kirby, K. Reynolds, J. Walker, P. Furer +1 more
2018Archives of Women's Mental Health36 citations
Semantic Scholar
Can individuals with celiac disease identify gluten-free foods correctly?
Emily D. Gutowski, D. Weiten, K. Green, L. Rigaux +5 more
2020Clinical Nutrition ESPEN35 citations Open access
Semantic Scholar
Validation of the PHQ-9 for Suicidal Ideation in Persons with Inflammatory Bowel Disease.
Brittany Litster, C. Bernstein, L. Graff, J. Walker +6 more
2018Inflammatory Bowel Diseases33 citations
Semantic Scholar
Symptoms of functional intestinal disorders are common in patients with celiac disease following transition to a gluten-free diet
J. Silvester, L. Graff, L. Rigaux, C. Bernstein +4 more
2017Digestive Diseases and Sciences33 citations Open access
Semantic Scholar
Association Between IBD Disability and Reduced Work Productivity (Presenteeism): A Population-Based Study in Manitoba, Canada.
L. Shafer, J. Walker, G. Restall, Tarun Chhibba +4 more
2018Inflammatory Bowel Diseases32 citations
Semantic Scholar
Physical comorbidities increase the risk of psychiatric comorbidity in immune-mediated inflammatory disease.
R. Marrie, R. Walld, J. Bolton, J. Sareen +9 more
2018General Hospital Psychiatry31 citations
Semantic Scholar
A Moderator Analysis of the Relationship Between Mental Health Help-Seeking Attitudes and Behaviours among Young Adults
Brooke E. Beatie, Donald W. Stewart, J. Walker
201631 citations
Semantic Scholar
Independent Validation of a Self-Report Version of the IBD Disability Index (IBDDI) in a Population-Based Cohort of IBD Patients.
L. Shafer, J. Walker, Tarun Chhibba, Melony Ivekovic +6 more
2017Inflammatory Bowel Diseases27 citations
Semantic Scholar
The Relationship Between Adverse Childhood Experiences and Health Care Use in the Manitoba IBD Cohort Study.
K. Witges, C. Bernstein, Kathryn A Sexton, T. Afifi +3 more
2019Inflammatory Bowel Diseases25 citations Open access
Semantic Scholar
Inflammatory bowel disease patient profiles are related to specific information needs: A nationwide survey
S. Daher, T. Khoury, A. Benson, J. Walker +7 more
2019World Journal of Gastroenterology23 citations Open access
Semantic Scholar
Validating a Measure of Patient Self-efficacy in Disease Self-management Using a Population-based IBD Cohort: The IBD Self-efficacy Scale
L. Graff, Kathryn A Sexton, J. Walker, I. Clara +2 more
2016Inflammatory Bowel Diseases22 citations
Semantic Scholar
Assessing the Relationship between Sources of Stress and Symptom Changes among Persons with IBD over Time: A Prospective Study
M. Bernstein, L. Targownik, Kathryn A Sexton, L. Graff +2 more
2016Canadian Journal of Gastroenterology and Hepatology21 citations Open access
Semantic Scholar
Randomized feasibility trial of directly observed versus unobserved hepatitis C treatment with ledipasvir-sofosbuvir among people who inject drugs
P. Coffin, Glenn-Milo Santos, Emily Behar, J. Hern +7 more
2019PLoS ONE20 citations Open access
Semantic Scholar
Workplace Accommodation for Persons With IBD: What Is Needed and What Is Accessed
Tarun Chhibba, J. Walker, Kathryn A Sexton, G. Restall +5 more
2017Clinical Gastroenterology and Hepatology18 citations
Semantic Scholar
Gender differences in information needs and preferences regarding depression among individuals with multiple sclerosis, inflammatory bowel disease and rheumatoid arthritis.
R. Marrie, J. Walker, L. Graff, S. Patten +6 more
2019Patient Education and Counseling17 citations Open access
Semantic Scholar
Patient Experiences with Colonoscopy: A Qualitative Study
G. Restall, Valerie Michaud, J. Walker, Celeste Waldman +4 more
2019Journal of the Canadian Association of Gastroenterology16 citations Open access
Semantic Scholar
Information experiences, needs, and preferences of colonoscopy patients
Eugene Lee, L. Shafer, J. Walker, Celeste Waldman +9 more
2019Medicine15 citations Open access
Semantic Scholar
Measurement invariance across Genders on the Childhood Illness Attitude Scales (CIAS).
Audur S. Thorisdottir, Anna Villadsen, D. M. LeBouthillier, C. Rask +4 more
2017Journal of Psychosomatic Research15 citations
Semantic Scholar
Development of the Dietitian Integrated Evaluation Tool for Gluten-Free Diets (DIET-GFD)
A. Atsawarungruangkit, J. Silvester, D. Weiten, K. Green +6 more
2020Nutrition (Burbank, Los Angeles County, Calif.)13 citations Open access
Semantic Scholar
Predictors of patient reluctance to wake early in the morning for bowel preparation for colonoscopy: a precolonoscopy survey in city-wide practice
L. Shafer, J. Walker, Celeste Waldman, Valerie Michaud +8 more
2018Endoscopy International Open13 citations Open access
Semantic Scholar
Searching for answers: How well do depression websites answer the public's questions about treatment choices?
K. Walsh, Teaghan A. M. Pryor, K. Reynolds, J. Walker
2019Patient Education and Counseling11 citations
Semantic Scholar
Perspectives of primary care providers and endoscopists about current practices, facilitators and barriers for preparation and follow-up of colonoscopy procedures: a qualitative study
G. Restall, J. Walker, Celeste Waldman, K. Zawaly +3 more
2018BMC Health Services Research11 citations Open access
Semantic Scholar
Health Care Services in IBD: Factors Associated with Service Utilization and Preferences for Service Options for Routine and Urgent Care.
M. Bernstein, J. Walker, Tarun Chhibba, Melony Ivekovic +3 more
2017Inflammatory Bowel Diseases11 citations
Semantic Scholar
Evaluating Information Quality of Revised Patient Education Information on Colonoscopy: It Is New But Is It Improved?
M. Bernstein, J. Kong, Vaelan Sriranjan, Sofia Reisdorf +3 more
2019Interactive Journal of Medical Research10 citations Open access
Semantic Scholar
Health Care Indicators of Moderate to Severe IBD and Subsequent IBD-Related Disability: A Longitudinal Study.
L. Shafer, J. Walker, Tarun Chhibba, L. Targownik +3 more
2019Inflammatory Bowel Diseases10 citations
Semantic Scholar
Living With Inflammatory Bowel Disease: Protocol for a Longitudinal Study of Factors Associated With Symptom Exacerbations
K. Witges, L. Targownik, Clove Haviva, J. Walker +6 more
2018JMIR Research Protocols10 citations Open access
Semantic Scholar
Information Experiences, Needs, and Preferences of Colonoscopy Patients: A Pre-Colonoscopy Survey
Eugene Lee, L. Shafer, J. Walker, Celeste Waldman +7 more
2018American Journal of Gastroenterology10 citations
Semantic Scholar
Gathering Opinions on Depression Information Needs and Preferences: Samples and Opinions in Clinic Versus Web-Based Surveys
M. Bernstein, J. Walker, Kathryn A Sexton, A. Katz +1 more
2017JMIR Mental Health10 citations Open access
Semantic Scholar
Exploring older adults’ experiences seeking psychological services using the network episode model
Brooke E. Beatie, C. Mackenzie, Genevieve N. Thompson, Lesley P. Koven +2 more
2020Ageing & Society8 citations
Semantic Scholar
Mobilizing Minds: Integrated knowledge translation and youth engagement in the development of mental health information resources
Christine Garinger, K. Reynolds, J. Walker, Emma Firsten-Kaufman +3 more
20168 citations Open access
Semantic Scholar
Coping with Inflammatory Bowel Disease: Engaging with Information to Inform Health-Related Decision Making in Daily Life
G. Restall, Alexandria Simms, J. Walker, Clove Haviva +5 more
2017Inflammatory Bowel Diseases7 citations
Semantic Scholar
Health Care Services in IBD: Factors Associated with Service Utilization and Preferences for Service Options for Routine and Urgent Care.
M. Bernstein, J. Walker, Tarun Chhibba, Melony Ivekovic +3 more
2017Inflammatory Bowel Diseases7 citations
Semantic Scholar

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R. Marrie×14
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R. Marrie — researcher profile on SciRah
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C. Hitchon — researcher profile on SciRah

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L. Lix — researcher profile on SciRah

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S. Patten — researcher profile on SciRah

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G. Restall — researcher profile on SciRah