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Table 3 Grouping of studies data for analysis

From: Assessment of causal link between psychological factors and symptom exacerbation in inflammatory bowel disease: a protocol for systematic review of prospective cohort studies

Studies reporting on following psychological factors Studies reporting on symptom exacerbation in these patient groups Studies reporting on symptom exacerbation in these patient groups Studies reporting on symptom exacerbation in these patient groups
Minor stressors UC patients CD patients Mixed CD and UC
Major life events UC patients CD patients Mixed CD and UC
Personality UC patients CD patients Mixed CD and UC