Table 1.
Definition of anatomical factors and staging systems.
Table 2.
Baseline data (N = 156).
Table 3.
Comparison between oropharyngeal OSA surgery alone and oropharyngeal OSA with nasal surgery groups.
Fig 1.
Success rates after oropharyngeal OSA surgery according to stage (N = 156).
A significant difference was observed in success rate between stages I and II (P = 0.001). There was a significant difference in success rate between II and III (P = 0.034). However, there was no difference in the success rate between stages IIa and IIb (P = 0.306). * P< 0.05.
Fig 2.
AHI reduction ratios after oropharyngeal OSA surgery according to stage (N = 156).
A significant difference was noted in the AHI reduction ratio between stages I and II (P < 0.001), whereas no significant difference was found in the AHI reduction ratio between stages II and III (P = 0.827). A significant difference was identified for the AHI reduction ratio between stages IIa and IIb (P = 0.032). * P< 0.05.
Table 4.
Predicted success rates based on the best predictive equation model.
Fig 3.
Correlation between AHI reduction ratio and predicted AHI reduction ratio (r = 0.603, P < 0.001).