Role of Laryngopharyngeal Reflux Changes in Children with Adenoid Hypertrophy: A Randomized Controlled Prospective Study

Table 3

Comparison between adenoid hypertrophy grading and pepsin expression.

Pepsin expression	Adenoidal hypertrophy grading
	Level 1	Level 2	Level 3	Level 4
−	—	—	9	4
+	—	—	6	3
++	—	—	5	8
+++	—	—	2	5
χ ^2	7.68
r	0.576
	0.003