Probabilities, costs and outcomes used in the model
| Parameter | Costs | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FN PD/GDM | TP PD/GDM | FN T2D | TP T2D | TN ALL | FP PD/GDM | ||||||||
| GDM treatment | Treatment | No treatment | Treatment | No treatment | No treatment | Treatment | |||||||
| Diabetes clinic | $300 per clinic | $ | $1200 | $ | $3000 | $ | $600 | ||||||
| Insulin | $3 per day | $ | $135 | $ | $798 | $ | $ | ||||||
| Blood glucose monitor | $20 | $ | $20 | $ | $20 | $ | $ | ||||||
| Test strips | $11 per 50 | $ | $77 | $ | $231 | $ | $ | ||||||
| Metformin | $0.06 per day | $ | $2 | $ | $16 | $ | $ | ||||||
| Ultrasound | $140 per US | $140 | $280 | $140 | $280 | $140 | $140 | ||||||
| Total cost of treatment | $140 | $1714 | $140 | $4345 | $140 | $740 | |||||||
| Prob | Cost | Prob | Cost | Prob | Cost | Prob | Cost | Prob | Cost | Prob | Cost | ||
| Health outcomes | |||||||||||||
| Preeclampsia | $8144 | 0.12 | $1013 | 0.07 | $569 | 0.20 | $1629 | 0.02 | $181 | 0.03 | $236 | 0.03 | $236 |
| Induction of labour | $58 | 0.29 | $17 | 0.34 | $20 | 0.56 | $33 | 0.60 | $35 | 0.21 | $12 | 0.21 | $12 |
| Caesarean section (excluding preeclampsia) | $6398 | 0.27 | $1727 | 0.25 | $1600 | 0.40 | $2559 | 0.11 | $711 | 0.21 | $1344 | 0.21 | $1344 |
| Vaginal delivery (excluding preeclampsia) | $2260 | 0.63 | $1424 | 0.71 | $1593 | 0.60 | $1356 | 0.89 | $2011 | 0.76 | $1718 | 0.76 | $1718 |
| Shoulder dystocia | $1351 | 0.04 | $49 | 0.01 | $18 | 0.15 | $209 | 0.15 | $203 | 0.06 | $81 | 0.06 | $81 |
| Perinatal death/stillbirth | $7383 | 0.005 | $34 | 0.00 | $ | 0.13 | $984 | 0.00 | $ | 0.00 | $ | 0.00 | $ |
| Hyperbilirubinaemia/phototherapy | $1125 | 0.10 | $116 | 0.08 | $86 | 0.09 | $105 | 0.05 | $61 | 0.12 | $135 | 0.12 | $135 |
| Admitted to NICU | $5010 | 0.14 | $701 | 0.16 | $782 | 0.21 | $1068 | 0.24 | $1190 | 0.09 | $465 | 0.09 | $465 |
All costs are expressed as $0.00k.
FN, false negative; FP, false positive; GDM, gestational diabetes mellitus; NICU, neonatal intensive care; PD, prediabetes; Prob, probabilities; T2D, type 2 diabetes; TN, true negative; TP, true positive; US, ultrasound.