About the form of asthma, there were 84, 2% of typical form, 7, 8% as dyspnea variant of asthma, and 6, 9% as cough variant of asthma.
Về các dạng hen, có 84,2% hen dạng điển hình, 7,8% hen dạng khó thở đơn thuần, 6,9% hen dạng ho.