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I. Clara · SciRah

Researcher profile · Semantic Scholar

I. Clara

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I. Clara — researcher profile on SciRah

h-index: 42
Works: 75
Citations: 7,704

Most-cited papers

The multidimensional structure of perfectionism in clinically distressed and college student samples.
B. Cox, M. Enns, I. Clara
2002Psychological Assessment474 citations
Semantic Scholar
Confirmatory Factor Analysis of the Depression–Anxiety–Stress Scales in Depressed and Anxious Patients
I. Clara, B. Cox, M. Enns
2001464 citations
Semantic Scholar
The Manitoba IBD Cohort Study: A Population-Based Study of the Prevalence of Lifetime and 12-Month Anxiety and Mood Disorders
J. Walker, J. Ediger, L. Graff, Jay M. Greenfeld +7 more
2008American Journal of Gastroenterology433 citations
Semantic Scholar
Disability and poor quality of life associated with comorbid anxiety disorders and physical conditions.
J. Sareen, F. Jacobi, B. Cox, Shay‐Lee Belik +2 more
2006Archives of Internal Medicine370 citations
Semantic Scholar
Parental bonding and adult psychopathology: results from the US National Comorbidity Survey
M. Enns, B. Cox, I. Clara
2002Psychological Medicine334 citations
Semantic Scholar
The relationship between anxiety disorders and physical disorders in the U.S. National Comorbidity Survey
J. Sareen, B. Cox, I. Clara, G. Asmundson
2005Depression and Anxiety320 citations
Semantic Scholar
Confirmatory Factor Analysis of The Multidimensional Scale of Perceived Social Support in Clinically Distressed and Student Samples
I. Clara, B. Cox, M. Enns, L. Murray +1 more
2003Journal of Personality Assessment319 citations
Semantic Scholar
Predictors of Medication Adherence in Inflammatory Bowel Disease
J. Ediger, J. Walker, L. Graff, L. Lix +7 more
2007American Journal of Gastroenterology303 citations
Semantic Scholar
The relationship of inflammatory bowel disease type and activity to psychological functioning and quality of life.
L. Graff, J. Walker, L. Lix, I. Clara +7 more
2006Clinical Gastroenterology and Hepatology298 citations Open access
Semantic Scholar
A population‐based study of fatigue and sleep difficulties in inflammatory bowel disease
L. Graff, N. Vincent, J. Walker, I. Clara +7 more
2011Inflammatory Bowel Diseases286 citations Open access
Semantic Scholar
Perceived Barriers to Mental Health Service Utilization in the United States, Ontario, and the Netherlands
J. Sareen, A. Jagdeo, B. Cox, I. Clara +4 more
2007277 citations
Semantic Scholar
Adaptive and maladaptive perfectionism: developmental origins and association with depression proneness
M. Enns, B. Cox, I. Clara
2002251 citations
Semantic Scholar
Longitudinal study of quality of life and psychological functioning for active, fluctuating, and inactive disease patterns in inflammatory bowel disease
L. Lix, L. Graff, J. Walker, I. Clara +6 more
2008Inflammatory Bowel Diseases250 citations Open access
Semantic Scholar
Perceived barriers to mental health service utilization in the United States, Ontario, and the Netherlands.
J. Sareen, A. Jagdeo, B. Cox, I. Clara +4 more
2007Psychiatric Services250 citations
Semantic Scholar
Use of Alcohol and Drugs to Self-Medicate Anxiety Disorders in a Nationally Representative Sample
J. Bolton, B. Cox, I. Clara, J. Sareen
2006Journal of Nervous and Mental Disease208 citations
Semantic Scholar
Prevalence of metabolic syndrome in the Canadian adult population
N. Riediger, I. Clara
2011Canadian Medical Association Journal206 citations Open access
Semantic Scholar
Stress Coping, Distress, and Health Perceptions in Inflammatory Bowel Disease and Community Controls
L. Graff, J. Walker, I. Clara, L. Lix +4 more
2009American Journal of Gastroenterology143 citations
Semantic Scholar
Posttraumatic stress disorder and the structure of common mental disorders
B. Cox, I. Clara, M. Enns
2002Depression and Anxiety143 citations Open access
Semantic Scholar
The Manitoba Inflammatory Bowel Disease Cohort Study: prolonged symptoms before diagnosis--how much is irritable bowel syndrome?
T. Burgmann, I. Clara, L. Graff, J. Walker +6 more
2006Clinical Gastroenterology and Hepatology133 citations Open access
Semantic Scholar
The Manitoba IBD Index: Evidence for a New and Simple Indicator of IBD Activity
I. Clara, L. Lix, J. Walker, L. Graff +4 more
2009American Journal of Gastroenterology120 citations
Semantic Scholar
Perfectionism and Neuroticism: A Longitudinal Study of Specific Vulnerability and Diathesis-Stress Models
M. Enns, B. Cox, I. Clara
2005Cognitive Therapy and Research119 citations
Semantic Scholar
The Parental Bonding Instrument: confirmatory evidence for a three-factor model in a psychiatric clinical sample and in the National Comorbidity Survey
B. Cox, M. Enns, I. Clara
2000Social Psychiatry and Psychiatric Epidemiology113 citations
Semantic Scholar
Changes in fatigue over 2 years are associated with activity of inflammatory bowel disease and psychological factors.
L. Graff, I. Clara, J. Walker, L. Lix +4 more
2013Clinical Gastroenterology and Hepatology107 citations
Semantic Scholar
Perceived Need for Mental Health Treatment in a Nationally Representative Canadian Sample
J. Sareen, B. Cox, T. Afifi, I. Clara +1 more
2005Canadian journal of psychiatry. Revue canadienne de psychiatrie98 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
Neuroticism and Physical Disorders Among Adults in the Community: Results from the National Comorbidity Survey
R. Goodwin, B. Cox, I. Clara
2006Journal of behavioral medicine87 citations
Semantic Scholar
Psychological dimensions associated with suicidal ideation and attempts in the National Comorbidity Survey.
B. Cox, M. Enns, I. Clara
2004Suicide and Life-Threatening Behaviour85 citations
Semantic Scholar
The information needs and preferences of persons with longstanding inflammatory bowel disease.
S. Wong, J. Walker, R. Carr, L. Graff +6 more
2012Canadian journal of gastroenterology = Journal canadien de gastroenterologie82 citations Open access
Semantic Scholar
Smoking during Pregnancy: Findings from the 2009–2010 Canadian Community Health Survey
Yang Cui, S. Shooshtari, E. Forget, I. Clara +1 more
2014PLoS ONE77 citations Open access
Semantic Scholar
Broad and specific personality dimensions associated with major depression in a nationally representative sample.
B. Cox, L. McWilliams, M. Enns, I. Clara
2004Comprehensive Psychiatry72 citations
Semantic Scholar
The Manitoba Inflammatory Bowel Disease Cohort Study: a prospective longitudinal evaluation of the use of complementary and alternative medicine services and products
P. Rawsthorne, I. Clara, L. Graff, Kylie I Bernstein +6 more
2011Gut71 citations
Semantic Scholar
Population‐based controlled study of social support, self‐perceived stress, activity and work issues, and access to health care in inflammatory bowel disease
Linda Rogala, N. Miller, L. Graff, P. Rawsthorne +6 more
2008Inflammatory Bowel Diseases69 citations Open access
Semantic Scholar
Predicting complicated Crohn's disease and surgery: phenotypes, genetics, serology and psychological characteristics of a population‐based cohort
J. Ryan, M. Silverberg, W. Xu, L. Graff +7 more
2013Alimentary Pharmacology and Therapeutics66 citations Open access
Semantic Scholar
Parent Proneness to Shame and the Use of Psychological Control
R. Mills, Wendy S. Freeman, I. Clara, F. Elgar +2 more
200764 citations
Semantic Scholar
Is Iron Deficiency in the Absence of Anemia Associated With Fatigue in Inflammatory Bowel Disease?
B. Goldenberg, L. Graff, I. Clara, R. Zarychanski +5 more
2013American Journal of Gastroenterology56 citations
Semantic Scholar
Assessing Self-Critical Perfectionism in Clinical Depression
I. Clara, B. Cox, M. Enns
2007Journal of Personality Assessment52 citations
Semantic Scholar
The association between bouts of moderate to vigorous physical activity and patterns of sedentary behavior with frailty
S. Kehler, I. Clara, B. Hiebert, Andrew N. Stammers +5 more
2018Experimental Gerontology49 citations
Semantic Scholar
Low prevalence of disability among patients with inflammatory bowel diseases a decade after diagnosis.
E. Israeli, L. Graff, I. Clara, J. Walker +3 more
2014Clinical Gastroenterology and Hepatology45 citations
Semantic Scholar
The structure of feared social situations among individuals with a lifetime diagnosis of social anxiety disorder in two independent nationally representative mental health surveys.
B. Cox, I. Clara, J. Sareen, M. Stein
2008Behaviour Research and Therapy45 citations
Semantic Scholar
Are personality dimensions associated with sleep length in a large nationally representative sample?
N. Vincent, B. Cox, I. Clara
2009Comprehensive Psychiatry44 citations
Semantic Scholar
Hierarchical models of personality and psychopathology: the case of self-criticism, neuroticism, and depression
I. Clara, B. Cox, M. Enns
200343 citations
Semantic Scholar
Sex-differences in relation to the association between patterns of physical activity and sedentary behavior with frailty.
D. Kehler, I. Clara, B. Hiebert, Andrew N. Stammers +5 more
2019Archives of gerontology and geriatrics (Print)42 citations
Semantic Scholar
Associations between arthritis and a broad range of psychiatric disorders: findings from a nationally representative sample.
L. McWilliams, I. Clara, Paul D J Murphy, B. Cox +1 more
2008Journal of Pain41 citations Open access
Semantic Scholar
The symptom structure of posttraumatic stress disorder in the National Comorbidity Replication Survey.
B. Cox, N. Mota, I. Clara, G. Asmundson
2008Journal of Anxiety Disorders41 citations
Semantic Scholar
Self-Criticism, Maladaptive Perfectionism, and Depression Symptoms in a Community Sample: A Longitudinal Test of the Mediating Effects of Person-Dependent Stressful Life Events
B. Cox, I. Clara, M. Enns
2009Journal of Cognitive Psychotherapy40 citations
Semantic Scholar
The Canadian Problem Gambling Index: Factor structure and associations with psychopathology in a nationally representative sample.
I. Brooker, I. Clara, B. Cox
200939 citations
Semantic Scholar
Relative importance measures for reprioritization response shift
L. Lix, T. Sajobi, R. Sawatzky, Ju-Xin Liu +9 more
2013Quality of Life Research35 citations
Semantic Scholar
Assessing the validity of social anxiety disorder subtypes using a nationally representative sample.
R. El-Gabalawy, B. Cox, I. Clara, C. Mackenzie
2010Journal of Anxiety Disorders30 citations
Semantic Scholar
Panic Attacks and Their Relation to Psychological and Physical Functioning in Canadians: Results from a Nationally Representative Sample
D. Kinley, B. Cox, I. Clara, R. Goodwin +1 more
2009Canadian journal of psychiatry. Revue canadienne de psychiatrie30 citations Open access
Semantic Scholar
Longitudinal Change in Bone Mineral Density in a Population-Based Cohort of Patients with Inflammatory Bowel Disease
L. Targownik, W. Leslie, R. Carr, I. Clara +5 more
2012Calcified Tissue International27 citations
Semantic Scholar

Frequent co-authors

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B. Cox×27
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J. Walker×18
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C. Bernstein×18
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L. Graff×17
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N. Miller — researcher profile on SciRah

Linda Rogala×15

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M. Enns — researcher profile on SciRah

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L. Lix — researcher profile on SciRah

P. Rawsthorne×11

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R. Carr — researcher profile on SciRah

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J. Ediger — researcher profile on SciRah