Table 1.

Demographic and clinical data of study participants.

	Blended n = 261	NERD n = 108	NIUA n = 511	p-value Blended vs NERD vs NIUA	p-value Blended vs NERD	p-value Blended vs NIUA	p-value NERD vs NIUA
Age median (IQR)	37 (29–48)	39 (30–48.5)	38 (28–50.7)	NS	NS	NS	NS
Gender (female), n (%)	176 (67.4)	73 (67.6)	296 (58)	0.03	NS	0.01	0.01
Underlying rhinitis, n (%)	158 (60.5)	77 (71.3)	185 (36.2)	<0.0001	NS	0.0002	<0.0001
Underlying asthma, n (%)	123 (47.1)	70 (64.8)	98 (19.2)	<0.0001	<0.0001	<0.0001	<0.0001
Nasosinusal polyposis, n (%)	24 (9.2)	42 (38.9)	0	<0.0001	<0.0001	<0.0001	<0.0001
Food allergy, n (%)	0	0	15 (3)	0.004	NS	0.005	NS
Atopy, n (%)	187 (71.6)	59 (54.6)	335 (65.5)	NS	0.002	NS	NS
Positive to at least one inhalant allergen, n (%)	181 (69.3)	59 (54.6)	328 (64.2)	NS	NS	NS	NS
Lolium;	91 (34.9)	19 (17.6)	82 (16)	0.001	0.03	0.0002	NS
Cupressus;	28 (10.7)	1 (0.9)	48 (9.4)	0.014	0.002	NS	0.005
Olea;	98 (37.5)	19 (17.6)	159 (31.1)	0.004	NS	NS	0.02
Parietaria;	19 (7.3)	9 (8.3)	30 (5.9)	NS	NS	NS	NS
Salsola;	22 (8.4)	2 (1.8)	40 (7.8)	NS	NS	NS	NS
D. pteronyssinuss;	108 (41.4)	32 (29.6)	219 (42.8)	NS	NS	NS	NS
Alternaria;	46 (17.6)	6 (5.5)	37 (7.2)	0.016	0.02	0.008	NS
Dog dander;	76 (29.1)	12 (11.1)	73 (14.3)	0.003	0.005	0.002	NS
Cat dander;	67 (25.7)	13 (12)	88 (17.2)	NS	0.03	NS	NS
Positive to at least one food allergen, n (%)	81 (31)	32 (29.6)	83 (16.2)	NS	NS	NS	0.02
Pru p 3	28 (10.7)	0	26 (5.1)	0.0001	0.0003	NS	0.01
Apple	24 (9.2)	0	10 (3.8)	<0.0001	0.001	NS	NS
Peanut	49 (18.7)	15 (13.9)	14 (2.7)	0.03	NS	0.04	NS
Walzetnut	49 (18.7)	15 (13.9)	15 (2.9)	0.03	NS	0.04	NS
Melon	23 (8.8)	0	22 (4.3)	0.0009	0.001	NS	0.02
Shrimp	29 (11.1)	10 (9.2)	14 (2.7)	0.01	NS	0.04	0.04

IQR: interquartile range; NS: Not significant.