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Table 3 Consistency of diagnosis of eczema between 1st and 2nd questionnaire

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

  all pairs same respondent same respondent
and same observer
ISAAC coding
1 st questionnaire
2 nd questionnaire 2 nd questionnaire 2 nd questionnaire
  Yes No Total Yes No Total Yes No Total
Yes 33 58 91 28 35 63 14 19 33
No 34 515 549 27 373 400 14 195 209
Total 67 573 640 55 408 463 28 214 242
  kappa = 0.34
95% CI 0.26-0.41
kappa = 0.40
95% CI 0.31-0.49
kappa = 0.38
95% CI 0.26-0.51
UKWP coding
1 st questionnaire
2 nd questionnaire 2 nd questionnaire 2 nd questionnaire
  Yes No Total Yes No Total Yes No Total
Yes 12 28 40 12 19 31 7 12 209
No 21 579 600 13 419 431 4 219 33
Total 33 607 640 25 438 463 11 231 242
  kappa = 0.29
95% CI 0.21-0.37
kappa = 0.39
95% CI 0.30-0.48
kappa = 0.43
95% CI 0.31-0.56