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L. Graff · SciRah

Researcher profile · Semantic Scholar

L. Graff

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L. Graff — researcher profile on SciRah

h-index: 51
Works: 223
Citations: 9,323

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
Canadian Association of Gastroenterology Clinical Practice Guideline for the Management of Irritable Bowel Syndrome (IBS)
P. Moayyedi, C. Andrews, G. MacQueen, C. Korownyk +8 more
2019Journal of the Canadian Association of Gastroenterology180 citations Open access
Semantic Scholar
The Relationship Between Symptoms of Depression and Anxiety and Disease Activity in IBD Over Time.
R. Marrie, L. Graff, J. Fisk, S. Patten +1 more
2021Inflammatory Bowel Diseases113 citations Open access
Semantic Scholar
Validity and Reliability of Screening Measures for Depression and Anxiety Disorders in Rheumatoid Arthritis
C. Hitchon, Lixia Zhang, C. Peschken, L. Lix +9 more
2020Arthritis care & research101 citations Open access
Semantic Scholar
Most Patients With Celiac Disease on Gluten-free Diets Consume Measurable Amounts of Gluten
J. Silvester, I. Comino, C. Kelly, C. Sousa +11 more
2019Gastroenterology98 citations Open access
Semantic Scholar
The Prevalence and Risk Factors of Undiagnosed Depression and Anxiety Disorders Among Patients With Inflammatory Bowel Disease.
Kylee Lewis, R. Marrie, Charles N. Bernstein, L. Graff +4 more
2019Inflammatory Bowel Diseases95 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
Exposure sources, amounts and time course of gluten ingestion and excretion in patients with coeliac disease on a gluten-free diet
J. Silvester, I. Comino, L. Rigaux, V. Segura +11 more
2020Alimentary Pharmacology and Therapeutics59 citations Open access
Semantic Scholar
Utility of the MARS-5 in Assessing Medication Adherence in IBD.
J. Stone, L. Shafer, L. Graff, L. Lix +5 more
2020Inflammatory Bowel Diseases58 citations Open access
Semantic Scholar
Diabetes and anxiety adversely affect cognition in multiple sclerosis.
R. Marrie, Ronak Patel, C. Figley, J. Kornelsen +6 more
2019Multiple Sclerosis and Related Disorders49 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
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
Childhood Maltreatment and Psychiatric Comorbidity in Immune-Mediated Inflammatory Disorders
Anthony Wan, C. Bernstein, L. Graff, S. Patten +6 more
2021Psychosomatic Medicine26 citations Open access
Semantic Scholar
Anxiety and depression affect performance on the symbol digit modalities test over time in MS and other immune disorders
R. Marrie, Ronak Patel, C. Bernstein, J. Bolton +6 more
2020Multiple Sclerosis26 citations Open access
Semantic Scholar
The 2023 Impact of Inflammatory Bowel Disease in Canada: Mental Health and Inflammatory Bowel Disease
L. Graff, R. Geist, M. E. Kuenzig, E. Benchimol +27 more
2023Journal of the Canadian Association of Gastroenterology23 citations Open access
Semantic Scholar
Effects of Vascular Comorbidity on Cognition in Multiple Sclerosis Are Partially Mediated by Changes in Brain Structure
R. Marrie, Ronak Patel, C. Figley, J. Kornelsen +9 more
2022Frontiers in Neurology22 citations Open access
Semantic Scholar
Association Between Change in Inflammatory Aspects of Diet and Change in IBD-related Inflammation and Symptoms Over 1 Year: The Manitoba Living With IBD Study.
K. Vagianos, L. Shafer, K. Witges, L. Targownik +6 more
2020Inflammatory Bowel Diseases20 citations Open access
Semantic Scholar
Higher Framingham Risk Scores are associated with greater loss of brain volume over time in multiple sclerosis.
R. Marrie, Ronak Patel, C. Figley, J. Kornelsen +9 more
2021Multiple Sclerosis and Related Disorders18 citations Open access
Semantic Scholar
Ultra-Processed Food, Disease Activity, and Inflammation in Ulcerative Colitis: The Manitoba Living With IBD Study
K. Vagianos, C. Dolovich, K. Witges, L. Graff +1 more
2024American Journal of Gastroenterology17 citations
Semantic Scholar
Urgency for bowel movements is a highly discriminatory symptom of active disease in persons with IBD (the Manitoba Living with IBD study)
A. Kulyk, L. Shafer, L. Graff, J. Stone +3 more
2022Alimentary Pharmacology and Therapeutics17 citations
Semantic Scholar
Performance of Regression-Based Norms for Cognitive Functioning of Persons With Multiple Sclerosis in an Independent Sample
R. Marrie, Christiane E Whitehouse, Ronak Patel, C. Figley +7 more
2021Frontiers in Neurology17 citations Open access
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
The association of efficacy, optimism, uncertainty and health anxiety with inflammatory bowel disease activity.
J. Stone, L. Shafer, L. Graff, K. Witges +5 more
2022Journal of Psychosomatic Research16 citations
Semantic Scholar
Prevalence and Risk Factors of Substance Use Disorder in Inflammatory Bowel Disease
H. Carney, R. Marrie, J. Bolton, S. Patten +3 more
2020Inflammatory Bowel Diseases16 citations Open access
Semantic Scholar
Understanding Predictors of Fatigue Over Time in Persons With Inflammatory Bowel Disease: The Importance of Depressive and Anxiety Symptoms
Charles N. Bernstein, J. Fisk, C. Dolovich, C. Hitchon +6 more
2023American Journal of Gastroenterology15 citations
Semantic Scholar
Within-person fluctuations over three years in depression, anxiety, fatigue, and health-related quality of life in multiple sclerosis
R. Marrie, C. Bernstein, C. Dolovich, J. Bolton +5 more
2023Multiple Sclerosis15 citations Open access
Semantic Scholar
Psychological Comorbidity and Intervention in Inflammatory Bowel Disease
Maia S Kredentser, L. Graff, C. Bernstein
2020Journal of Clinical Gastroenterology15 citations
Semantic Scholar
Incidence of Adverse Psychiatric Events During Treatment of Inflammatory Bowel Disease With Biologic Therapies: A Systematic Review
Avni Jain, R. Marrie, L. Shafer, L. Graff +6 more
2019Crohn's & Colitis 36015 citations Open access
Semantic Scholar
Altered voxel-based and surface-based morphometry in inflammatory bowel disease.
J. Kornelsen, T. McIver, Md Nasir Uddin, C. Figley +7 more
2023Brain Research Bulletin13 citations Open access
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
Psychometric Performance of Fatigue Scales in Inflammatory Bowel Disease
R. Marrie, J. Fisk, C. Dolovich, L. Lix +3 more
2023Inflammatory Bowel Diseases11 citations Open access
Semantic Scholar
Depressive symptom trajectories and polygenic risk scores in individuals with an immune-mediated inflammatory disease
K. Kowalec, A. Salter, Kathryn C. Fitzgerald, Mitulkumar Patel +9 more
2022General Hospital Psychiatry11 citations Open access
Semantic Scholar
Exploring the Relationship Between Self-Isolation and Distress Among People with Gastrointestinal Disorders During the COVID-19 Pandemic
A. Mikocka-Walus, D. Skvarc, M. B. de Acosta, F. B. Evertsz' +11 more
2021Journal of clinical psychology in medical settings11 citations Open access
Semantic Scholar
Social phobia in immune-mediated inflammatory diseases.
Ian M Reinhorn, C. Bernstein, L. Graff, S. Patten +5 more
2019Journal of Psychosomatic Research11 citations Open access
Semantic Scholar
Crohn’s Disease Phenotypes and Associations With Comorbidities, Surgery Risk, Medications and Nonmedication Approaches: The MAGIC in IMAGINE Study
C. N. Bernstein, R. Panaccione, Z. Nugent, D. Marshall +15 more
2024Inflammatory Bowel Diseases10 citations Open access
Semantic Scholar
Polygenicity of Comorbid Depression in Multiple Sclerosis
K. Kowalec, Kathryn C. Fitzgerald, A. Salter, C. Dolovich +15 more
2023Neurology10 citations Open access
Semantic Scholar
What Is a Flare? The Manitoba Living With IBD Study.
K. Witges, Kathryn A Sexton, L. Graff, L. Targownik +6 more
2021Inflammatory Bowel Diseases10 citations Open access
Semantic Scholar
COVID‐19–related personal product shortages are associated with psychological distress in people living with gastrointestinal disorders: A cross‐sectional survey
A. Mikocka-Walus, D. Skvarc, M. van Tilburg, Manuel Barreiro-de Acosta +10 more
2021Neurogastroenterology and Motility10 citations Open access
Semantic Scholar
ECTRIMS 2024 – Late Breaking Oral Presentations
A. Abdelhak, A. Maceski, S. Schädelin, Eline Willemse +191 more
2024Multiple Sclerosis9 citations
Semantic Scholar
Differences in resting state functional connectivity relative to multiple sclerosis and impaired information processing speed
Sean Carter, Ronak Patel, J. Fisk, C. Figley +9 more
2023Frontiers in Neurology9 citations Open access
Semantic Scholar
The comorbidity and cognition in multiple sclerosis (CCOMS) neuroimaging protocol: Study rationale, MRI acquisition, and minimal image processing pipelines
M. Uddin, Teresa D Figley, J. Kornelsen, Erin L. Mazerolle +14 more
2022Frontiers in Neuroimaging9 citations Open access
Semantic Scholar
Extending the Common Sense Model to Explore the Impact of the Fear of COVID-19 on Quality of Life in an International Inflammatory Bowel Disease Cohort
Bree Hayes, P. Apputhurai, A. Mikocka-Walus, Manuel Barreiro-de Acosta +14 more
2021Journal of clinical psychology in medical settings9 citations Open access
Semantic Scholar
Sex differences evident in elevated anxiety symptoms in multiple sclerosis, inflammatory bowel disease, and rheumatoid arthritis
Jerlin Joyees, R. Marrie, Charles N. Bernstein, James M. Bolton +5 more
2023Frontiers in Psychiatry8 citations Open access
Semantic Scholar
Crohn’s and Colitis Canada’s 2021 Impact of COVID-19 and Inflammatory Bowel Disease in Canada: Mental Health and Quality of Life
L. Graff, S. Fowler, Jennifer Jones, E. Benchimol +10 more
2021Journal of the Canadian Association of Gastroenterology8 citations Open access
Semantic Scholar
Patient Engagement and Multidisciplinary Involvement Has an Impact on Clinical Guideline Development and Decisions: A Comparison of Two Irritable Bowel Syndrome Guidelines Using the Same Data
P. Moayyedi, Megan Marsiglio, C. Andrews, L. Graff +11 more
2019Journal of the Canadian Association of Gastroenterology8 citations Open access
Semantic Scholar
Well-being and flourishing mental health in adults with inflammatory bowel disease, multiple sclerosis and rheumatoid arthritis in Manitoba, Canada: a cross-sectional study
Shaza Almweisheer, C. Bernstein, L. Graff, S. Patten +5 more
2023BMJ Open7 citations Open access
Semantic Scholar
Self-reported flares among people living with IBD are associated with stress and worry but not associated with recent diet changes: The Manitoba Living with IBD Study.
K. Vagianos, L. Shafer, K. Witges, L. Graff +2 more
2022JPEN - Journal of Parenteral and Enteral Nutrition7 citations
Semantic Scholar
Crohn’s and Colitis Canada’s 2021 Impact of COVID-19 and Inflammatory Bowel Disease in Canada: Executive Summary
M. E. Kuenzig, J. Windsor, L. Barrett, C. Bernstein +28 more
2021Journal of the Canadian Association of Gastroenterology7 citations Open access
Semantic Scholar

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