Table 1.

Demographics and clinical history of participants recruited in the Grass Pollen Allergy Study (GPAS)

	Non‐atopic	Other allergy	Allergic rhinitis with Grass pollen allergy
Number	29	54	330
Age[Link]	45.4 (37.5–57.4)	32.6 (19.2–36.8)	41.2 (35.3–46.6)
Number of females (%)[Link]	13 (44.8%)	27 (50%)	216 (65.5%)*
Number with asthma (%)[Link]	1 (3.4%)	14 (25.9%)*	126 (38.1%)****
Sum of SPT (mm)[Link]	5 (4–12)	13.5 (8–20)****	39 (29–54)****
Total IgE (IQR)[Link]	31.5 (10.7–67.5)	142 (49.7–346)****	126 (52.5–290)****

Values expressed as medians with interquartile range in parentheses.

IQR, interquartile range; n.s., not significant; SPT, skin prick test.

Fisher's exact test for difference in frequencies relative to the NA group.

Kruskal–Wallis test for difference between medians between groups with Dunn's pairwise comparisons.

^* P ≤ 0.05.

^**** P ≤ 0.0001.