Table 2.

—Relationship of American Thoracic Society/Division of Lung Diseases Asthma Questions to the DRS of PC₂₀ in Children With SCA

Symptom	% With Event	P Value
Does the participant usually have a cough with colds?	75	.473
Does he/she usually have a cough without having a cold?	30	.002
Does the participant usually seem congested in the chest or bring up phlegm with colds?	63	.585
Does the participant usually seem congested in the chest or bring up phlegm without having a cold?	16	.184
Does the participant’s chest ever sound wheezy or whistling when he/she has a cold?	51	.903
Does the participant’s chest ever sound wheezy or whistling occasionally even without having a cold?	19	.181
Has the participant ever had an attack of wheezing that has caused him/her to be short of breath?	26	.903
Has the participant ever had attacks of wheezing after playing hard or exercising?	41	.172

See Table 1 for expansion of abbreviations.