Fig. 1

Effects of FMT on Hamilton Anxiety Rating Scale, Hamilton Depression Rating Scale and Irritable Bowel Syndrome Quality of Life in IBS-D patients with anxiety and depression. a–c shows the HAM-A, HAM-D and IBS-Qol indexes, respectively, of IBS-D patients in Col and FMT. The blue triangles represent the individuals of Col and the red dots represent the individuals of FMT. Bars indicate mean ± SEM. IBS-D, diarrhea-predominant irritable bowel syndrome; Col, Control group; FMT, FMT treatment group; HAM-A, Hamilton Anxiety Rating Scale; HAM-D, Hamilton Depression Rating Scale; IBS-QOL, Irritable Bowel Syndrome Quality of Life. The abscissa represents the sample collection time. All these evaluation indexes mentioned above were measured at one week prior to FMT (pre-FMT-1 W), one week following FMT (post-FMT-1 W), one month following FMT (post-FMT-1 M), two months following FMT (post-FMT-2 M), and three months following FMT (post-FMT-3 M). *, p < 0.05; **, p < 0.01