asthma
Item
asthmatic
boolean
C0004096 (UMLS CUI [1])
female
Item
female
boolean
C0086287 (UMLS CUI [1])
age
Item
aged 18-45
boolean
C0001779 (UMLS CUI [1])
contraception
Item
user of combination oral contraceptive pills or non-user of any hormonal contraception
boolean
C0700589 (UMLS CUI [1])
smoker
Item
smoker
boolean
C1519386 (UMLS CUI [1])
lung disease
Item
other underlying lung disease (i.e., emphysema, cystic fibrosis, lung cancer)
boolean
C0024115 (UMLS CUI [1])
oral contraceptives
Item
user of oral contraceptives that are not combination (estrogen + progesterone) pills
boolean
C0009905 (UMLS CUI [1])
non-oral hormonal contraception
Item
user of non-oral hormonal contraception
boolean
C2985296 (UMLS CUI [1,1])
C1268907 (UMLS CUI [1,2])
oral steroids
Item
have been treated in the prior 4 weeks with oral steroids
boolean
C0001617 (UMLS CUI [1,1])
C0040223 (UMLS CUI [1,2])
respiratory infection
Item
have had a respiratory infection in the prior 4 weeks
boolean
C0035243 (UMLS CUI [1,1])
C0040223 (UMLS CUI [1,2])
poorly controlled asthma
Item
asthma under poor control at study entry
boolean
C0004096 (UMLS CUI [1,1])
C3853134 (UMLS CUI [1,2])
severe asthma
Item
presence of severe asthma
boolean
C0581126 (UMLS CUI [1])