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Table 2 Consistency between 1st and 2nd questionnaire to the ISAAC filter question1

From: Validation of epidemiological tools for eczema diagnosis in brazilian children: the isaac's and uk working party's criteria

  all the pairs same respondent same respondent
and same observer
1 st questionnaire 2nd questionnaire 2nd questionnaire 2nd questionnaire
  yes no Total yes no Total yes no Total
yes 97 108 205 78 71 149 46 41 87
no 70 367 437 49 267 316 27 130 157
Total 167 475 642 127 338 465 73 171 244
  kappa = 0.33
95% CI 0.25-0.41
kappa = 0.38
95% CI 0.29-0.47
kappa = 0.37
95% CI 0.25-0.49
  1. 1"Has your child ever had an itchy rash that came and went for at least 6 months?"