Verifying a questionnaire diagnosis of asthma in children using health claims data

BMC Pulmonary Medicine

Table 3 Questionnaire^a Asthma Diagnosis versus Health Claims^b Diagnosis, excluding children with "asthma-related symptoms" (n = 1826)

^a Positive answer to questions "Has your child ever had asthma?" and "Was this diagnosed by a physician?"
^b Algorithm of one asthma hospitalization and/or two asthma physician visit claims within two years
Kappa = 0.75 (95% CI = 0.72, 0.79)
Sensitivity = 83.57% Specificity = 93.56% (Health Claims Reference Standard)

ISSN: 1471-2466