Table 4.
White British origin infants
| Outcome | Chart | Prevalence (%) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | AUROC | Significance |
|---|---|---|---|---|---|---|---|---|
| BiB versus UK-WHO | ||||||||
| Shoulder dystocia | BiB | 1.10 | 41.50 | 90.80 | 4.80 | 99.30 | 0.66 | p=0.08 |
| UK-WHO | 31.70 | 92.40 | 4.50 | 99.20 | 0.62 | |||
| Low Apgar 1 min | BiB | 5.10 | 10.00 | 90.40 | 5.30 | 94.90 | 0.50 | p<0.01 |
| UK-WHO | 10.40 | 88.40 | 4.60 | 94.80 | 0.49 | |||
| Caesarean section (SGA) | BiB | 22.80 | 9.30 | 90.30 | 22.00 | 77.20 | 0.50 | p=0.06 |
| UK-WHO | 10.50 | 88.20 | 20.70 | 77.00 | 0.49 | |||
| NNU (SGA) | BiB | 4.70 | 19.40 | 91.00 | 9.50 | 95.80 | 0.55 | p=0.02 |
| UK-WHO | 18.80 | 89.00 | 7.70 | 95.70 | 0.54 | |||
| BiB versus customised | ||||||||
| Shoulder dystocia | BiB | 1.10 | 41.50 | 90.80 | 4.80 | 99.30 | 0.66 | p=0.08 |
| GROW | 26.80 | 95.70 | 6.50 | 99.10 | 0.61 | |||
| Low Apgar 5 min | BiB | 0.60 | 13.00 | 90.40 | 0.80 | 99.40 | 0.51 | p=0.07 |
| GROW | 39.10 | 81.60 | 1.20 | 99.60 | 0.60 | |||
| Caesarean section (LGA) | BiB | 22.80 | 14.80 | 92.10 | 35.60 | 78.60 | 0.53 | p=0.08 |
| GROW | 8.40 | 96.80 | 43.90 | 78.20 | 0.53 | |||
| Assistance (SGA) | BiB | 11.80 | 10.00 | 90.50 | 12.40 | 88.20 | 0.50 | p<0.01 |
| GROW | 15.30 | 81.10 | 9.80 | 87.70 | 0.48 | |||
| NNU (SGA) | BiB | 4.70 | 19.40 | 91.00 | 9.50 | 95.80 | 0.55 | p=0.03 |
| GROW | 34.40 | 82.30 | 8.70 | 96.20 | 0.58 | |||
| NNU (LGA) | BiB | 4.70 | 9.40 | 90.60 | 4.70 | 95.30 | 0.50 | p=0.08 |
| GROW | 7.50 | 95.90 | 8.20 | 95.50 | 0.52 | |||
| Composite (LGA) | BiB | 48.60 | 11.70 | 18.40 | 59.50 | 52.60 | 0.52 | p=0.07 |
| GROW | 5.90 | 96.80 | 63.40 | 52.10 | 0.51 | |||
| UK-WHO versus customised | ||||||||
| Low Apgar 5 min | UK-WHO | 0.60 | 17.40 | 88.40 | 0.90 | 99.50 | 0.53 | p=0.09 |
| GROW | 39.10 | 81.60 | 1.20 | 99.60 | 0.60 | |||
| Caesarean section (LGA) | UK-WHO | 22.80 | 13.10 | 93.70 | 38.10 | 78.50 | 0.53 | p=0.06 |
| GROW | 8.40 | 96.80 | 43.90 | 78.20 | 0.53 | |||
| Assistance (SGA) | UK-WHO | 11.80 | 11.90 | 88.50 | 12.20 | 88.20 | 0.50 | p<0.01 |
| GROW | 15.30 | 81.10 | 9.80 | 87.70 | 0.48 | |||
| Assistance (LGA) | UK-WHO | 11.80 | 5.90 | 91.90 | 9.00 | 87.90 | 0.49 | p=0.09 |
| GROW | 3.80 | 95.60 | 10.40 | 88.10 | 0.50 | |||
| NNU (SGA) | UK-WHO | 4.70 | 18.80 | 89.00 | 7.70 | 95.70 | 0.54 | p<0.01 |
| GROW | 34.40 | 82.30 | 8.70 | 96.20 | 0.58 | |||
| NNU (LGA) | UK-WHO | 4.70 | 8.10 | 92.40 | 5.00 | 95.30 | 0.50 | p=0.09 |
| GROW | 7.50 | 95.90 | 8.20 | 95.50 | 0.52 | |||
AUROC, area under the receiver operating characteristic; BiB, Born in Bradford; GROW, gestation-related optimal weight; LGA, large-for-gestational age; NNU, neonatal unit; NPV, negative predictive value; PPV, positive predictive value; SGA, small-for-gestational age.