FC patients were characterized by increased BMI and CTT prolonged and unevenly distributed in subsections,especially in the left half colon,sigmoid and rectum;

• FC患者体重指数升高,存在结肠传输缓慢,具有各节段结肠运输时间分布不均匀、以左半结肠和乙状结肠直肠区为主的特点;