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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