Nasal nitric oxide in allergic rhinitis in children and its relationship to severity and treatment

Table 1 Characteristics of children with no allergic rhinitis (AR), mild AR, and moderate-to-severe AR

	Control (n = 49)	Mild (n = 50)	Moderate+ (n = 44)	P
Age, years	7.2 ± 1.9	6.1 ± 2.3	6.8 ± 2.3	0.053
Sex				0.135
Female	27 (55.1)	32 (64)	33 (75)
Male	22 (44.9)	18 (36)	11 (25)
BMI, kg/m²	17 ± 3.5	16.9 ± 4.5	16.8 ± 3	0.955
Pre-treatment nNO (ppb)	220.5 (186.5, 240.5)	279.5 (257, 323)^a	497.5 (447.5, 635.5)^a,b	<0.001

Data are shown as mean ± standard deviation for age and BMI, median (interquartile range) for pre-treatment nNO, and frequency (%) for gender
Italic value indicates significant difference among the three groups, P < 0.05
^aIndicates significant difference from the control group, P < 0.017
^bIndicates significant difference from mild AR group, P < 0.017

ISSN: 1710-1492