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Objective evaluation of psychological abnormality in irritable bowel syndrome
S K Chakraborti1, B K Dey, N Ghosh
1Department of Gastroenterology, Institute of Post-Graduate Medical Education and Research, Calcutta.
Background:
Irritable bowel syndrome (IBS) is frequently regarded as a psychological disorder. Data on objective evaluation of psychological abnormalities among IBS patients and control subjects are scanty in our country. We therefore objectively studied patients with IBS.
Methods:
42 patients satisfying the Manning's criteria and Munich workers' for diagnosis of IBS underwent psychological evaluation using the following tests: a) Eyesenck personality questionnaire. b) State and trait anxiety inventory according to Speilberger's method. c) Hamilton depression rating scale for detection of depression. d) Whitely index of hypochondriasis and discriminant function by Pilowsky's illness behavior questionnaire.
Results:
Neuroticism was detected in 76% of IBS patients compared to 9% in control population (p < 0.01). State and trait anxiety scores were 44.5 +/- 17.1 and 49.0 +/- 15.3 respectively in IBS patients; these were higher than those in controls (35.5 +/- 7.5 and 41.2 +/- 6.1 respectively; p < 0.01). Severe depression was observed in 26% of IBS patients and 6% of control subjects (p < 0.05). Significantly higher hypochondriasis score was observed in IBS patients as compared to controls (p < 0.001).
Conclusion:
Neuroticism, hypochondriasis and depression were significantly more prevalent in IBS patients attending a clinic, compared to control population.