Assessment of asthma control
The respiratory control of patients was assessed with the 5-item,
caregiver-completed test for Respiratory and Asthma Control in Kids
(TRACK). It includes frequency of respiratory symptoms (wheeze, cough,
shortness of breath), activity limitation, and night-time awakenings in
the past 4 weeks, rescue medication use in the past 3 months, and oral
corticosteroid use in the previous year [28]. A total score of less
than 80 suggests a suboptimal respiratory control status [29].