Fig 1From: Obstructive sleep apnea in patients with laryngeal cancer after supracricoid or vertical partial laryngectomyStatistical analysis of AHI, mini SpO2 value, ESS scores and BMI of the 40 patients before surgery, at the time of extubation, and 3 months after extubation (a). Descriptive statistics of AHI, mini SpO2 value, ESS scores and BMI of patients undergoing SCPL or VPL in 3 time points (b). Estimated marginal means of AHI, mini SpO2, ESS and BMI with two groups (c). AHI, apnea/hypopnea index; ESS, epworth sleepiness scale; BMI, body mass index; PRE, preoperation; TR, night of tube removal; PO, 3 months after tube removal; SCPL, supracricoid partial laryngectomy; VPL, vertical partial laryngectomy. *P < 0.05, **P < 0.01Back to article page