Table 2.
C‐statistics for the reference method and the four first‐trimester prognostic models for GDM before and after the addition of the new predictor first‐trimester random venous glucose
| Before addition of glucose | After addition of glucose | Improvement* | |
|---|---|---|---|
| c‐statistic (95% CI) | c‐statistic (95% CI) | P‐value | |
| Reference 20 | 0.72 (0.68–0.76) | – | |
| Gabbay‐Benziv 2014 16 | 0.75 (0.71–0.79) | 0.78 (0.75–0.82) | 0.16 |
| Nanda 2011 17 | 0.78 (0.74–0.82) | 0.80 (0.76–0.83) | 0.20 |
| Teede 2011 18 | 0.77 (0.73–0.81) | 0.80 (0.76–0.84) | 0.16 |
| van Leeuwen 2010 19 | 0.74 (0.71–0.78) | 0.78 (0.74–0.81) | 0.14 |
CI, confidence interval; GDM, gestational diabetes mellitus.
*
Improvement of model fit after addition of glucose (likelihood ratio test).