The correlation between the bronchial hyperresponsiveness to methacholine and asthma like symptoms by GINA questionnaires for the diagnosis of asthma

Table 3 Multivariate logistic regression analysis of questions by GINA

Question	Positive response		OR*	95% CI^†	P-value
	Asthma G	Control G
Q1. Wheezing	63	161	2.0	(1.3-3.0)	<0.001
Q2. Exercise-induced dyspnea	87	239	2.3	(1.5-3.5)	<0.001
Q3. Nocturnal cough or dyspnea	77	260	1.3	(0.9-2.0)	0.169
Q4. URI ≥10 days	80	273	1.3	(0.9-2.0)	0.187
Q5. Pollution-induced dyspnea	63	161	2.0	(1.3-3.0)	<0.001

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