Conclusions: Abnormal esophageal motility is more common in males in patients with gastroesophageal reflux disease (GERD) and healthy volunteers.Male may he a risk factor for GERD.

• 结论：无论是胃食管反流病(GERD)患者还是健康志愿者，男性的食管动力均较女性差，男性性别是GERD发病的危险因素之一。