Demographic data, mean (SD) and percentages (number) for the CD patients (who had not and had undergone resective surgery) and the controls.

p 1 indicates significance of the difference between controls and CD patients who had not undergone rescective surgery. p 2 indicates significance of the difference between controls and CD patients who had undergone rescective surgery. p 3 indicates significance of the difference between the 3 groups. Significances were calculated with ANOVA and Chi-square test. Post doc analyses were done with Fischers’ least significant difference test. NS = Not significant. The difference in CD duration calculated with unpaired Student’s t-test.