a decreasing trendp = 0.39
However, the incidence of serious infection showed a decreasing trend (CD: RR 0.28, 95% CI 0.13–0.61; I 2 = 0%, p = 0.39; UC: RR 0.56, 95% CI 0.18–1.69; I 2 = 9%, p = 0.33; Supplementary Figure S5 ). 3.6.2 Maintenance therapy According to maintenance trial results, treatment of IBD patients with an IL-23 p19 inhibitor showed no connection with the significantly greater AEs compared with placebo (CD: RR 1.00, 95% CI 0.89–1.13; I 2 = 29%, p = 0.25; UC: RR 0.96, 95% CI 0.87–1.06; I 2 = 0%, p = 0.44; Supplementary Figure S6 ), but the results were not statistically significant.