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Competing Interests: Dr. Doulberis has received travel grants by Gilead Sciences Switzerland Sàrl. Rest of the authors declare no conflicts of interest.

Background: The prevalence and incidence of inflammatory bowel diseases (IBDs) vary among countries. Data regarding prevalence of IBD in Greece are limited or outdated., Methods: We reviewed the medical records of IBD patients from a population of 551,808 Greek Army recruits in a 13-year period (2006-2018). Study population consisted of males 18-37 of age from Northwest, Central Greece (including Attica), Peloponnese, and Aegean Sea Islands. Age, disease distribution, pharmaceutical treatment and IBD-related surgery at the time of patients' admission were recorded., Results: The prevalence of IBD among male recruits during the studied period was 0.15% (839/551 808, 95% confidence interval 0.14-0.16%). Of these, 448 (53.4%) had Crohn's disease (CD) and 391 (46.6%) ulcerative colitis (UC). Although 32.1% of CD patients had been treated with biologics, most often infliximab (60% of them), azathioprine was the most common as monotherapy (27% of patients). Among UC patients, mesalamine was the most often prescribed treatment (64.2%), whereas treatment with biologics as monotherapy or in combination with azathioprine was used in a ratio 1:2 compared to CD patients. A gradual reduction in steroid use was noted from 2006 to 2018, coinciding with the advent and increasing use of biologics. IBD-related surgery had been performed in 8% and 2.8% of CD and UC patients, respectively., Conclusion: The prevalence of IBD in Greek male recruits was 0.15% with a slight CD predominance. Remarkable changes in therapeutic trends were noted with an increasing use of biologics and reduced prescription of steroids, especially for CD., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)

Aim: To identify factors predicting mucosal healing in ulcerative colitis patients treated with anti-TNFα agents with or without azathioprine., Methods: In a prospective, multicenter, one-year study biologic naïve patients aged 25-65 years, with corticosteroid-dependent or refractory colitis received combination treatment with anti-TNFα and azathioprine for 6 months followed by anti-TNFα monotherapy. Patients who denied combination therapy or were outside this age range received anti-TNFα monotherapy (controls). Before and at weeks 12 and 54 of treatment the total Mayo score was calculated. Mucosal healing was defined as endoscopic subscore of 0. Mucosal expression of T helper (Th) cell-lineage specific transcription factors (Tbet, Gata3, Rorc, FoxP3) before treatment was also associated with mucosal healing., Results: Of 67 patients, 58 (86.6%) received combination and 9 (13.4%) anti-TNFα monotherapy. Overall 29 (43.3%) patients achieved mucosal healing; rates were higher in patients receiving combination therapy vs. monotherapy (p=0.03) and in azathioprine naïve vs. exposed patients in the combination group (p=0.01). Mucosal healing was associated with lower pre-treatment mucosal expression of transcription factor Th1-Tbet (p<0.05) and higher expression of Th17-Rorc (p<0.05)., Conclusions: Mucosal healing was associated with combination therapy, especially in biologic and azathioprine-naïve patients and pre-treatment mucosal expression of specific Th specific transcripting factors (Tbet and Rorc)., (Copyright © 2016 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.)