Sensitivity analysis
| GDM diagnoses (numbers of women) | Total cost | Total cost | Cost difference (per case detected) | Cost difference (total cost) | |
|---|---|---|---|---|---|
| 2-Step | 3-Step | 2-Step | 3-Step | ||
| 6.5% GDM prevalence (baseline) | |||||
| 3477 | 3366 | $269.889 | $268.504 | $0.012 | −$1.384 |
| 5% GDM prevalence | |||||
| 2841 | 2777 | $266.732 | $266.563 | $0.002 | −$0.169 |
| 10% GDM prevalence | |||||
| 5395 | 5064 | $273.148 | $272.672 | $0.001 | −$0.476 |
| OGTT S and S 90% | |||||
| 3301 | 3201 | $271.063 | $268.529 | $0.025 | −$2.533 |
| OGTT S and S 98% | |||||
| 3582 | 3465 | $269.185 | $268.490 | $0.005 | −$0.695 |
| OGTT S and S 100% | |||||
| 3653 | 3531 | $268.715 | $268.480 | $0.001 | −$0.235 |
GDM prevalence and diagnostic accuracy of the oral glucose tolerance test. All costs are expressed as $0.000m.
GDM, gestational diabetes mellitus; OGTT, oral glucose tolerance test; S and S, sensitivity and specificity.