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Table 1 Patient Demographics and Anaesthetic Procedure.

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

Age (yrs)* 54 (19 - 90)
Male sex 20 (49%)
BMI* 29.5 (16.1 - 45.1)
Body temperature (°C)* 36.4 (35 - 38.6)
Duration of surgery (min)* 52 (10 - 154)
ASA status  
I 7 (17%)
II 22 (54%)
III 11 (27%)
IV 1 (2%)
Opioids  
Fentanyl 35 (85%)
Morphine 6 (15%)
Induction  
Midazolam 16 (39%)
Propofol 40 (98%)
Thiopentone 1 (2%)
Maintenance  
Sevoflurane 38 (93%)
Isoflurane 2 (5%)
Desflurane 1 (2%)
Nitrous Oxide 6 (15%)
Muscle Relaxants 26 (63%)
  1. Data are number of patients (%) unless otherwise stated.
  2. *Data are mean (range).
  3. Anaesthetic regimen was at the discretion of the anaesthetist. 36 patients received a similar regimen of propofol induction and sevoflurane maintenance.