Table 1 Data quality ascertainment of the electronic BCG Registry, expressed as proportion of agreement per variable
Paper listings vs. electronic BCG Registry (1956–1992) | Vaccination certificates vs. electronic BCG Registry (1956–1975) | |||||
|---|---|---|---|---|---|---|
N = 4,987 | N = 4,709 | |||||
Na | No. of Discrepancies | % Agreement (95% CI) | Nb | No. of Discrepancies | % Agreement (95% CI) | |
Nominal variables | ||||||
Surname | 4986 | 0 | 100.0 (-) | 4704 | 23 | 99.5 (99.3-99.7) |
Given Name | 4772 | 3 | 99.9 (99.8-100.0) | 4639 | 364 | 92.2 (91.3-92.9) |
Sex | 4952 | 1 | 100.0 (99.9-100.0) | 4697 | 393 | 91.6 (90.8-92.4) |
Date of Birth | 4921 | 4 | 99.9 (99.8-100.0) | 4702 | 25 | 99.5 (99.2-99.6) |
Father’s Given Name | 4889 | 2 | 100.0 (99.9-100.0) | 4630 | 54 | 98.8 (98.5-99.1) |
BCG-related variables | ||||||
Tuberculin reactivity test | ||||||
Year | 3754 | 0 | 100.0 (-) | 2962 | 1 | 100.0 (99.8-100.0) |
Type | 3754 | 0 | 100.0 (-) | 2962 | 1 | 100.0 (99.8-100.0) |
Reaction | 3478 | 2 | 99.9 (99.8-100.0) | 2818 | 33 | 98.8 (98.4-99.2) |
Vaccination | ||||||
Year | 3369 | 0 | 100.0 (-) | 3790 | 0 | 100.0 (-) |
Type | 1965 | 0 | 100.0 (-) | 3541 | 7 | 99.8 (99.6-99.9) |
Institution | 4963 | 8 | 99.8 (99.7-99.9) | - | - | - |
Year of 1st prior vaccination | 637 | 0 | 100.0 (-) | 407 | 3 | 99.3 (97.9-99.7) |
Year of 2nd prior vaccination | 402 | 0 | 100.0 (-) | 243 | 4 | 98.4 (95.8-99.4) |