Original Articles: Asthma, Rhinitis, Other Respiratory DiseasesThe prevalence of environmental exposure to perceived asthma triggers in children with mild-to-moderate asthma: Data from the Childhood Asthma Management Program (CAMP)☆,☆☆,★
Section snippets
Methods
The details of the CAMP study design, rationale, and methods have been published.12 Children aged 5 to 12 years with chronic asthma were recruited over a 23-month period from clinic rosters; emergency department records; primary care practices; radio, television, and newspaper advertisements; and other sources. Entry criteria included asthma symptoms, medication use, or both for 6 months or more in the previous year. Patients were excluded if they had needed prednisone bursts more than 5 times
Demographics
Characteristics of the CAMP population are summarized in Table I, and more detailed descriptions can be found elsewhere.10, 11 The mean age of the children at study entry was 8.4 years, and 60% were boys. Thirty-two percent of the children represented various ethnic minority groups. The educational background of the parent or legal guardian escorting the child to the initial screening visit suggests that most of the children came from well-educated families; 82% had some college or
Discussion
The characteristics of the CAMP participants approximate the goals of the trial reasonably well, which were to enroll children with mild-to-moderate asthma that might potentially benefit from long-term anti-inflammatory therapy and hence influence growth of lung function. The descriptive characteristics of the CAMP participants demonstrate a consistency with known truisms about prepubertal childhood asthma.1, 2, 3, 4, 5, 6, 7, 8, 9, 16 In general, this disease has a male predominance, as is
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Supported by contracts NO1-HR-16044, 16045, 16046, 16047, 16048, 16049, 16050, 16051, and 16052 with the National Heart, Lung, and Blood Institute and General Clinical Research Center grants M01RR00051, M01RR0099718-24, M01RR02719-14, and RR00036 from the National Center for Research Resources. The Harvard Pilgrim Health Care Foundation provides additional support for the CAMP center at Brigham & Women’s Hospital.
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Reprint requests: Alice Sternberg, ScM, CAMP Coordinating Center, Johns Hopkins Center for Clinical Trials, 615 North Wolfe Street, Room 5010, Baltimore, MD 21205.