Table 3. Predictive performance, measured in Matthew's Correlation Coefficient (MCC), of two-step Bayesian network for oxygen requirement prediction.

The performance for aerobe and anaerobe predictions are the same as for the one step prediction method, but the performance for prediction of facultative anaerobes have increased from 0.31 to 0.39.

Classification	MCC
Aerobe	0.63
Anaerobe	0.76
Facultative	0.39