Enrique Rey, Marta Moreno Ortega, Monica Olga Garcia Alonso, Manuel Diaz-Rubio
Enrique Rey, Marta Moreno Ortega, Monica Olga Garcia
Alonso, Manuel Diaz-Rubio, Department of Digestive
Diseases, Hospital Clinico San Carlos (IMSALUD), and Faculty
of Medicine, Complutense University, Madrid 28040, Spain
To evaluate rational and experiential intelligence in irritable bowel syndrome (IBS) sufferers.
We recruited 100 subjects with IBS as per Rome Ⅱ criteria (50 consulters and 50 non-consulters)
and 100 healthy controls, matched by age, sex and educational level. Cases and controls completed a clinical questionnaire (including symptom
characteristics and medical consultation) and the following tests: rational intelligence (Wechsler Adult Intelligence Scale, 3rd edition); experiential-intelligence
(Constructive Thinking Inventory); personality (NEO personality inventory); psychopathology (MMPI-2), anxiety (state-trait anxiety inventory) and
life events (social readjustment rating scale). Analysis of variance was used to compare the test results of IBS-sufferers and controls, and a logistic
regression model was then constructed and adjusted for age, sex and educational level to evaluate any possible association with IBS.
No differences were found between IBS cases and controls in terms of IQ (102.0 ± 10.8 vs
102.8 ± 12.6), but IBS sufferers scored significantly lower in global constructive thinking (43.7 ± 9.4 vs 49.6 ± 9.7). In the logistic regression model, global
constructive thinking score was independently linked to suffering from IBS [OR 0.92 (0.87-0.97)], without significant OR for total IQ.
IBS subjects do not show lower rat ional intel l igence than cont rols, but lower
experiential intelligence is nevertheless associated with IBS.
Key words: Constructive thinking; Intelligence tests; Intelligence; Irritable bowel syndrome