Skip to main content

Table 5 Summary of levels of anaesthesia, what EEG states they relate to and sample sizes.

From: Peak and averaged bicoherence for different EEG patterns during general anaesthesia

Sedation level Meaning Including EEG states Sample size
    Number of observations Number of subjects
1 Awake 2, 3 & 4 169 40
2 Drowsy/very light anaesthesia 5 11 5
3 Light anaesthesia 6 14 4
4 Moderate anaesthesia 7 444 31
5 Deep moderate anaesthesia 8 999 40
6 Deep anaesthesia 9 159 24