[Retracted] Balloon Eustachian Tuboplasty and Grommet Insertion: A Combined Surgical Treatment for Chronic Suppurative Otitis Media with Eustachian Tube Dysfunction

Table 3

The preoperative and postoperative air-bone gap (ABG) of the CSOM-ETD patients in the two groups.

Groups	Preoperative	Postoperative
		6 months	12 months
BET group	24.19 ± 12.8	23.31 ± 10.56	22.29 ± 10.65
BET + Grommet group	25.50 ± 10.51	18.06 ± 10.34	15.40 ± 10.12
P	0.584	0.016	0.002

Note: , the intragroup comparison with preoperative data.