[Clinical significance of fractional exhaled nitric oxide combined with in vitro allergen test in identifying children at a high risk of asthma among those with recurrent wheezing].

Objective: To investigate the clinical value of combined determination of in vitro allergens and fractional exhaled nitric oxide (FeNO) in indentifying children at a high risk of asthma among those with recurrent wheezing.

Methods: A total of 148 children with recurrent wheezing (0.5-6 years old) were enrolled as study subjects, and 80 healthy children who underwent physical examination were enrolled as the control group.