Table 3.

Statistical analysis of the predictors for BA control

Predictor	OR	SE	P-value	95% CI
Infectious exacerbation	3.95	1.357	<0.001	2.11–7.953
Occupational history	2.18	0.780	0.008	1.256–4.452
Mixed (obstructive and restrictive) ventilatory dysfunction in spirometry	1.17	0.075	0.021	1.021–1.327
Persistent airway obstruction in spirometry	3.78	1.271	0.001	1.76–7.78
History of BA onset (months)	1.02	0.008	0.021	1.002–1.035
Current smoking status	0.87	0.007	0.012	0.66–1.09

Note: Significance was determined by a P-value of <0.05.

Abbreviations: BA, bronchial asthma; OR, odds ratio; SE, standard error; CI, confidence interval.