A case-control study on risk factors of osteoporosisin patients with Crohn's disease.

Background: Osteoporosis has been frequently reported in patients with inflammatory bowel diseases, especially Crohn's disease.

Methods: All consecutive Crohn's disease patients who attended the GI Clinics at Shariati Hospital, Tehran, Iran, from 2004 to 2007 were evaluated. A BMD-DEXA assessment was performed for all patients.

Epidemiologic characteristics of 500 patients with inflammatory bowel disease in Iran studied from 2004 through 2007.

Background: Despite claims of rarity, some studies indicate that the prevalence of inflammatory bowel disease has increased in Iran during the past decades. Establishment of a registry and the clinical characteristics are presented in this study.

Methods: Two hundred ninety-three patients with ulcerative colitis and 207 with Crohn's disease, referred to tertiary referral gastrointestinal centers in Tehran from 2004 through 2007, were assessed.

Crohn's disease and early exposure to domestic refrigeration.

Background: Environmental risk factors playing a causative role in Crohn's Disease (CD) remain largely unknown. Recently, it has been suggested that refrigerated food could be involved in disease development. We thus conducted a pilot case control study to explore the association of CD with the exposure to domestic refrigeration in childhood.