nflammatory bowel disease (IBD) is described by increased coagulability and prothrombotic state and can be associated with coagulopathies. Although many causes of increased coagulability and thrombosis have been reported in IBD, there is no definitive evidence for most of them. This study aimed to define the changes in coagulation factors in patients with IBD compared to healthy controls.

In this case-control study, serum levels of protein C, protein S, antithrombin III, fibrinogen, and homocysteine were evaluated in 59 patients with a confirmed IBD, (23 with Crohn's disease and 36 with ulcerative colitis) (case group) and 29 healthy individuals (control group) matched for age and gender.

Significant differences were found in all five studied markers between IBD and non-IBD patients (protein C (P=0.033), protein S (P=0.006), antithrombin III (P<0.001), fibrinogen (P=0.016) and homocysteine (P<0.001)), however, multivariate analysis showed a significant role for only Homocysteine (OR=0.957, 95%CI: 0.93-0.986, P=0.003) in predicting IBD.

Regarding the results, it can be alleged that despite the significant difference in the level of coagulation factors between the IBD and non-IBD patients, only the serum level of Homocysteine has a predictive role for IBD.