Skip to main content

Table 2 Questionnairea Asthma Diagnosis versus Health Claimsb Diagnosis (n = 2782)

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

  Health Claims + Health Claims - Total
Questionnaire + 346 91 437
Questionnaire - 240 2105 2345
Total 586 2196 2782
  1. a Positive response to questions "Has your child ever had asthma?" and "Was this diagnosed by a physician?"
  2. bAlgorithm of one asthma hospitalization and/or two asthma physician visit claims within two years
  3. Kappa = 0.60 (95% CI 0.56, 0.64)
  4. Sensitivity = 59.04% Specificity = 95.86% (Health Claims reference standard)