Validating a questionnaire diagnosis of asthma in children using health claims … – BMC Pediatrics

Validating a questionnaire diagnosis of asthma in children using health claims
BMC Pediatrics
Childhood asthma prevalence is widely measured by parental proxy report of physician-diagnosed asthma in questionnaires. Our objective was to validate this measure in a North American population. The 2884 study participants were a subsample of 5619

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