Table 2.
Selected test characteristics for 283 participants with 1 hour GCT ≥160 mg/dL using 1 hour GCT values, maternal BMI, age over 30, and history of GDM.
| 1 hour GCT Value (mg/dL), n |
National Diabetes Data Group Criteria for GDM (95% Confidence Interval) |
Carpenter – Coustan Criteria for GDM (95% Confidence Interval) |
||||
|---|---|---|---|---|---|---|
| Sens | Spec | AUC | Sens | Spec | AUC | |
| ≥160, n=283 |
65.5% (57.7, 72.7) |
70.2% (66.4, 73.9) |
0.678 (0.638, 0.719) |
58.4% (52.0,64.6) |
72.8% (68.6, 76.6) |
0.656 (0.620,0.692) |
| ≥160 and history of GDM, n=115 |
66.7% (57.6,74.9) |
55.4% (43.4, 67.0) |
0.610 (0.540, 0.681) |
59.2% (51.5, 66.6) |
47.8% (26.8, 69.4) |
0.535 (0.425, 0.646) |
| ≥160 and history of GDM, age≥30, BMI≥30 kg/m2, n=40 |
65.3% (50.4,78.3) |
65.2% (42.7, 83.6) |
0.653 (0.532, 0.773) |
56.9% (44.0,69.2) |
57.1% (18.4,90.1) |
0.570 (0.363, 0.777) |
| ≥180, n=96 |
30.3% (23.4, 37.9) |
92.2% (89.7, 94.2) |
0.612 (0.576, 0.649) |
24.8% (19.6, 30.6) |
93.2% (90.7, 95.3) |
0.590 (0.561,0.619 |
| ≥180, and history of GDM, n=53 |
32.5% (24.4, 41.6) |
82.4% (71.8, 90.3) |
0.575 (0.514, 0.635) |
27.6% (21.1, 34.9) |
78.3% (56.3, 92.5) |
0.529 (0.437, 0.622) |
| ≥180, and history of GDM, age≥30, BMI≥30 kg/m2, n=23 |
38.8% (25.2, 53.8) |
82.6% (71.8, 90.3) |
0.607 (0.502, 0.712) |
32.3% (21.2,45.1) |
71.4% (29.0, 96.3) |
0.519 (0.329, 0.708) |
| ≥200, n=35 |
14.5% (9.6, 20.9) |
98.1% (96.7,99.1) |
0.563 (0.536, 0.591) |
11.2% (7.6, 15.8) |
98.6% (97.2, 99.4) |
0.549 (0.529, 0.569) |
| ≥200, and history of GDM, n=23 |
16.3% (10.2, 24.0) |
95.9% (88.6,99.2) |
0.561 (0.521, 0.601) |
12.6% (8.1,18.5) |
95.7% (78.1, 99.9) |
0.541 (0.492, 0.591) |
| ≥200, and history of GDM, age≥30, BMI≥30 kg/m2, n=13 |
22.4% (11.8, 36.6) |
91.3% (72.0,98.9) |
0.569 (0.485, 0.652) |
18.5% (9.9, 30.0) |
85.7% (42.1,99.6) |
0.521 (0.373, 0.669) |
| ≥220, n=11 |
4.9% (2.1, 9.3) |
99.5% (98.5,99.9) |
0.522 (0.505, 0.538) |
3.6% (1.7, 6.7) |
99.6% (98.6, 100.0) |
0.516 (0.504, 0.528) |
| ≥220, and history of GDM, n=7 |
5.7% (2.3, 11.4) |
100.0% (95.1, 100.0) |
0.528 (0.508, 0.549) |
4.0% (1.6, 8.1) |
100.0% (85.2, 100.0) |
0.520 (0.505,0.535) |
| ≥220, and history of GDM, age≥30, BMI≥30 kg/m2, n=4 |
8.2% (2.3,19.6) |
100.0% (85.2, 100.0) |
0.541 (0.502, 0.580) |
6.2% (1.7,15.0) |
100.0% (59.0, 100.0) |
0.531 (0.051,0.560) |
Sensitivity (Sens), Specificity (Spec), and Area Under the Curve (AUC) for each threshold.