Clinical Outcome Measures
Using interview data, we classified each
participating child’s asthma as well controlled,
not well controlled, or very poorly controlled in
accordance with NHLBI guidelines.41 The interview
included the Pediatric Asthma Caregiver’s
Quality of Life Questionnaire score,45
ranging from 1 to 7, with higher scores indicating
better quality of life and a change of
0.5 units being clinically significant. Interview
data included use of asthma-related urgent
clinical care during the previous 12 months
(including an overnight stay in hospital, emergency
room visit, or unscheduled clinic visit) and self-reported asthma attacks in the previous
3 months