age
Item
age 15 or older
boolean
C0001779 (UMLS CUI [1])
asthma
Item
physician diagnosed asthma
boolean
C0004096 (UMLS CUI [1])
asthma medication
Item
regular use of prescribed asthma medication over preceding year
boolean
C0013227 (UMLS CUI [1,1])
C0004096 (UMLS CUI [1,2])
C0040223 (UMLS CUI [1,3])
post-bronchodilator fev1
Item
post-bronchodilator fev1 of at least 75% of predicted
boolean
C0748133 (UMLS CUI [1,1])
C2599594 (UMLS CUI [1,2])
asthma control
Item
inadequate asthma control over preceding two months
boolean
C0004096 (UMLS CUI [1,1])
C0040223 (UMLS CUI [1,2])
smoking
Item
current or past smoking (greater than 10 pack-years)
boolean
C1519384 (UMLS CUI [1])
asthma exacerbation
Item
serious asthma exacerbation within previous three months
boolean
C0349790 (UMLS CUI [1,1])
C0040223 (UMLS CUI [1,2])
oral corticosteroids
Item
regular use of oral corticosteroids
boolean
C0001617 (UMLS CUI [1])
respiratory failure due to asthma
Item
history of respiratory failure due to asthma
boolean
C1145670 (UMLS CUI [1,1])
C0004096 (UMLS CUI [1,2])
montelukast
Item
current use of montelukast or history of adverse reaction to montelukast
boolean
C0298130 (UMLS CUI [1])
C0298130 (UMLS CUI [2,1])
C0020517 (UMLS CUI [2,2])
comorbidity
Item
concomitant interfering medical condition
boolean
C0009488 (UMLS CUI [1])
subject participation status
Item
participation in another clinical trial
boolean
C2348568 (UMLS CUI [1])
compliance
Item
inability or unwillingness to perform study procedures
boolean
C1321605 (UMLS CUI [1])
pregnancy, lack of effective contraception (when appropriate), lactation
Item
pregnancy, lack of effective contraception (when appropriate), lactation
boolean
C0032961 (UMLS CUI [1])
C0700589 (UMLS CUI [2])
C0006147 (UMLS CUI [3])