Number of bowel movements per week in the MgO group. The median bowel movement frequency 1 week prior to DKT administration was 2.5 (interquartile range, 1–3). However, 1 week after DKT administration, the frequency significantly (P<0.001) increased to 7.5 (interquartile range, 5–11). DKT, daiokanzoto.