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Table 3 Questionnairea Asthma Diagnosis versus Health Claimsb Diagnosis, excluding children with "asthma-related symptoms" (n = 1826)

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

 

Health Claims +

Health Claims -

Total

Questionnaire +

346

91

437

Questionnaire -

68

1321

1389

Total

414

1412

1826

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