Correction to: J Gastroenterol DOI 10.1007/s00535-017-1376-4

In Fig. 2(c) of this article, the length of the “95% CI difference bars” under the items labelled “Left-sided and Pancolitis” and “Left-sided” under the heading “Disease type” was corrected. The correct figure is shown in the following page.

figure a

In Fig. 3(a) of this article, the length of the “95% CI difference bar” for the items labelled “Yes” under the heading “Rectal 5-ASA” was corrected. In Fig. 3(b), the length of the “95% CI difference bars” for the items labelled “Yes” under the heading “Rectal 5-ASA”, the item “Low” under the heading “Dose of oral 5-ASA”, and the item “6≤” under the heading “Baseline MMDAI” was corrected. The correct figure is shown in the following page.

figure b