Table 2 Allergic symptoms prevalence in the PIFCOPD study population

Allergic nasal symptoms

 Does not sometimes have an itchy, runny, or stuffy nose

9576 (94)

 Does sometimes have an itchy, runny or stuffy nose

566 (5.6)

Allergic eye symptoms

 Does not sometimes have itchy, watery, swollen or burning eyes

9520 (94)

 Does sometimes have itchy, watery, swollen or burning eyes

622 (6.1)

Wheezing

 Has not had wheezing symptoms

10,022 (99)

 Has had wheezing symptoms

120 (1.2)

Worsening dyspnea caused by allergens

 Has not had worsened shortness of breath due to exposure to dust, pollen, or pets

9813 (97)

 Has had worsened shortness of breath due to exposure to dust, pollen or pets

329 (3.2)

 ≥ 2 allergic symptoms

421 (4.2)