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Table 5 Tongue base anteroposterior 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)
Tongue Base A-P 0 54 (31%) 8 (14.3%) 0.003
1 73 (42%) 23 (41.1%)  
2 47 (27%) 25 (44.6%)  
  1. OSA Obstructive sleep apnea, A-P Anteroposterior
  2. *Chi-squared test
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