Table 4.

Confusion matrix in the testing set

Actual	Testing set predicted count
New BDR category	Negative	Minimal	Mild	Moderate	Marked
Negative	2099	118	0	0	0
Minimal	3	1294	534	0	0
Mild	2	37	1266	36	1
Moderate	1	2	491	488	191
Marked	4	0	12	122	767

BDR, bronchodilator responsiveness.