Diagnostic Value of Fractional Exhaled Nitric Oxide and Small Airway Function in Differentiating Cough-Variant Asthma from Typical Asthma

Table 1

The demographic characteristics of TA and CVA subjects.

	TA (n = 102)	CVA (n = 104)	t/
Gender
Male	62 (60.8%)	48 (46.2%)	4.429	0.035
Female	40 (39.2%)	56 (53.8%)
Age (year)	58.08 ± 11.84	44.51 ± 13.54	7.61	<0.001
<45	12 (11.8%)	48 (46.2%)	29.501	<0.001
>45	90 (88.2%)	56 (53.8%)
BMI (kg/m^2)	25.05 ± 3.12	25.32 ± 3.53	0.58	0.56^b

CVA, cough-variant asthma; TA, typical asthma. Data were shown as mean ± standard deviation. ^a: test for differences between patients. ^b: two-tailed Student’s T-test between patients.