The simulation also reealed that flexible sigmoidoscopy screenings reduced the rate of cancer by just oer 31 percent, while traditional colonoscopy reduced the rate by just oer 40 percent.

• 这次模拟也显示出可屈性乙状结肠镜检查能减少31%25的癌症发病几率，而传统结肠镜检查能减少40%25的几率。