[Retracted] Diagnosis and Etiological Analysis of Gastroesophageal Reflux Disease by Gastric Filling Ultrasound and GerdQ Scale

Table 3

Comparison of abdominal esophageal length, His angle, and GerdQ scale scores between the two groups.

Group	n	Ultrasound		GerdQ
		Length of abdominal esophagus (cm)	His angel (°)
GERD	62	2.36 ± 0.75	68.23 ± 6.52	8.35 ± 2.85
Non-GERD	38	3.49 ± 0.60	52.45 ± 5.09	5.75 ± 1.02
T		7.867	12.723	5.407
		<0.001	<0.001	<0.001