Clinical efficacy and mechanism study of mid-frequency anti-snoring device in treating moderate obstructive sleep apnea-hypopnea syndrome

Table 4 Comparison of soft palate posterior airway area and retrolingual airway area computed tomography scan results in obstructive sleep apnea-hypopnea syndrome patients in different states (mean ± SD)

Position	Awake	Snoring	Anti-snoring
Soft palate posterior airway area	80.47 ± 18.56	22.05 ± 16.471	71.61 ± 17.382
Retrolingual airway area	155.36 ± 13.29	120.45 ± 12.233	150.61 ± 12.354

¹Compared to the awake state, the airway cross-sectional area decreased during snoring (t = 5.301, P = 0.000).

²Compared to the snoring state, the airway cross-sectional area increased (t = 2.806, P = 0.021).

³Compared to the awake state, the airway cross-sectional area decreased during snoring (t = 5.021, P = 0.001).

⁴In contrast, when compared to the snoring state, the airway cross-sectional area increased (t = 5.029, P = 0.001).