Table 3 Measures of agreement between two data sources (card- vs recall-based)
From: Validity of parental recalls to estimate vaccination coverage: evidence from Tanzania
BCG | OPV | DPT | Measles | Measles (9+ months) | |
|---|---|---|---|---|---|
(n = 2460) | (n = 2460) | (n = 2460) | (n = 2460) | (n = 644) | |
Agreement/concordance (%) | 98.0 | 97.7 | 97.7 | 94.2 | 94.4 |
Parental recall bias (%) | 2.0 | 2.3 | 2.3 | 5.8 | 5.6 |
Over-reporting (%) | 1.3 | 1.3 | 1.9 | 3.2 | 3.0 |
Under-reporting (%) | 0.7 | 1.0 | 0.4 | 2.6 | 2.6 |
Sensitivity (%) | 99.3 | 98.9 | 99.6 | 93.4 | 95.8 |
Specificity (%) | 22.5 | 20.0 | 16.1 | 94.6 | 92.1 |
Kappa statistic (unadjusted) | 0.26 | 0.21 | 0.23 | 0.88 | 0.88 |
Kappa statistic –PABAK | 0.96 | 0.95 | 0.95 | 0.88 | 0.89 |