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Table 4 Correlations between oxygen desaturation and ictal EEG pattern and state at seizure onset

From: Frequency of peri-ictal apnea and cardiac arrhythmias in epileptic seizures

  Oxygen desaturation Chi-square
Mild Moderate
N % N % χ2 P value
State at seizure onset
Awake 0 0.00 0 0.00 7.797 0.020*
Non REM 25 100.00 8 100.00
Ictal EEG pattern
Rhythmic spike and wave 6 24.00 0 0.00 17.744 0.007*
Paroxysmal fast activity 19 76.00 6 75.00
Rhythmical evolving theta, delta, alpha 0 0.00 2 25.00
Rhythmic polyspike and wave 0 0.00 0 0.00
  1. EEG electroencephalography, REM rapid eye movement, χ2 chi-square value
  2. *Statistically significant