Table 3. Supervised Gain Ratio Feature Evaluation for Complication Status.

Gain Ratio	Feature
0.2049	Log transformed VLF power (60 min window) at baseline
0.2012	Log transformed VLF power (30 min window) at baseline
0.1934	Increase in propofol from Baseline
0.1902	Log transformed Total Power (5 min window) at baseline
0.1864	Log transformed VLF (30 min window) 24 hours prior to event
0.1826	Standard deviation RRIDX 24 hours prior to event
0.1826	Standard deviation RRIDX Baseline
0.1786	Maximum white blood count 24 hours prior to event
0.1582	Maximum TCD Lindengaard Ratio: Mean Velocity
0.1582	Maximum TCD Lindengaard Ratio: Peak Velocity
0.1440	Propofol dosage at baseline
0.1212	Change in ventilation status
0.0877	Clipping aneurysm repair procedure
0.0845	Maximum TCD Mean Velocity: any vessel
0.0838	Temperature > 38.3

The gain ratio is the worth of an attribute whereby higher values represent greater relatedness to the presence of a complication.