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Table 4 Comparison between patient and control groups as regards the visual evoked potential (VEP)

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

  COPD Control P
   Mean SD Mean SD
Right P100 Latency (ms) 107.9 8.1 95.36 3,45 0.005*
Amplitude (μv) 4.39 0.63 4.95 0.32 < 0.001*
Left P100 Latency (ms) 109.27 6.49 95.8 1.88 0.006*
Amplitude (μv) 4.39 0.69 5.03 0.33 < 0.001*
  1. *significant