Table 1. Precision, Recall and f1-score of testing.

Class	Precision	Recall	F1-score
Normal	0.93	0.89	0.91
Mild	0.83	0.89	0.86
Moderate	0.86	0.87	0.87
Severe	0.95	0.92	0.93
Average	0.89	0.89	0.89