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Table 4 Oropharynx lateral wall collapse in positional and non-positional obstructive sleep apnea

From: Role of drug-induced sleep endoscopy in evaluation of positional vs non-positional OSA

Collapse Pattern Positional OSA (n = 174) Non-positional OSA (n = 56) P value*
Level Configuration Degree n (% within Position OSA) n (% within Non-position OSA)
Oropharynx Lateral 0 58 (33.3%) 5 (8.9%) < 0.001
1 59 (33.9%) 16 (28.6%)  
2 57 (32.8%) 35 (62.5%)  
  1. OSA Obstructive sleep apnea
  2. *Chi-squared test