[Retracted] Clinical Evaluation of the Medium-Term Efficacy of Laparoscopic Sleeve Gastrectomy against Obstructive Sleep Apnea-Hypopnea Syndrome in Obese Patients

Table 3

Comparison of PSG indexes at different follow-up time points before and after surgery.

Indexes	Number of cases	Pre-LSG	Three months	Six months	Twelve months
AHI (per hour)	37		^a	^b
LSaO2	37		^a	^b

^a is compared with the pre-LSG measurement, ; ^b is compared with the previous time point, .