COVID-19 pandemic and exacerbation of ulcerative colitis

Figure 1 Ulcerative colitis disease activity index score during the first wave of the coronavirus disease 2019 pandemic as compared with the previous visit (n = 289). During the first wave of the coronavirus disease 2019 pandemic in Japan (March–April 2020), consecutive ulcerative colitis (UC) patients presenting to our clinic were enrolled in this study. Mean modified UC-disease activity index was significantly higher on the day of entry than at the previous visit. UC-DAI: Ulcerative colitis disease activity index.