Table 1 Probability estimates for linkage analyses
Matching variable | Baseline best guesses | Dattani et al. [15] estimate | ||||||
|---|---|---|---|---|---|---|---|---|
m | u | \(w_{\mathrm {m}}^{\mathrm {a}}\) | \(w_{\text {nm}}^{\mathrm {b}}\) | m | u | \(w_{\mathrm {m}}^{\mathrm {a}}\) | \(w_{\text {nm}}^{\mathrm {b}}\) | |
Date of birth | 0.90 | 0.00274 | 5.794 | -2.3 | 0.7405 | 0.0015 | 6.202 | -1.347 |
GA at birth | 0.80 | 0.02 | 3.689 | -1.589 | 0.4941 | 0.0494 | 2.3028 | -0.6308 |
Sex | 0.999 | 0.49 | 0.7123 | -6.2344 | 0.7208 | 0.0062 | 4.756 | -1.270 |
Discharge date | 0.20 | 0.002 | 4.6052 | -0.2211 | — | — | — | — |
Date of death c | 0.20 | 0.00274 | 4.2904 | -0.2204 | 0.30 | 0.002 | 5.0106 | -0.3547 |
Birth weight | 0.60 | 0.001 | 6.3969 | -0.9153 | 0.7405 | 0.0074 | 4.606 | -1.342 |
Birth order | 0.87 | 0.95 | -0.08797 | 0.95551 | 0.8153 | 0.0033 | 5.510 | -1.686 |
Delivery method c | 0.80 | 0.80 | 0 | 0 | 0.67 | 0.1 | 1.902 | -1.003 |
Ethnic category | 0.20 | 0.10 | 0.6931 | -0.1178 | 0.7308 | 0.095 | 2.040 | -1.212 |
Mother’s age at delivery | 0.95 | 0.05 | 2.944 | -2.944 | — | — | — | — |
Mother’s date of birth | 0.90 | 0.0001 | 9.105 | -2.302 | — | — | — | — |
Postcode | 0.90 | 0.001 | 6.802 | -2.302 | 0.9291 | 0.065 | 2.660 | -2.579 |
Number of previous pregnancies | 0.60 | 0.90 | -0.4055 | 1.3863 | — | — | — | — |
Number of babies | 0.95 | 0.95 | 0 | 0 | 0.8153 | 0.0033 | 5.510 | -1.686 |