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Table 5 Comparison between patient and control groups as regards the number of cases with affected brainstem auditory evoked potentials

From: Electrophysiological biomarkers of central nervous system affection in cases of chronic obstructive pulmonary disease (COPD)

  COPD Control P value
N % N %  
Normal 26 65 29 96.7 0.0012*
Abnormal 14 35 1 3.3
  1. *significant