TABLE 2.

The bronchial provocation test for CTVA patients

	52 weeks
First administration	Negative (n)	Positive (n)
Negative (n)	8	1
Positive (n)	22	10

Note. Data are presented as n. The results of airway hyperreactivity for CTVA patients were all significantly improved after 1‐year treatment (P < .001). In the first administration, bronchial provocation test results showed that 32 patients were positive and nine were negative. After 52 weeks of treatment, 22 out of the 32 patients with an initial positive test finding achieved conversion.