Table 1.
The score-scaled GDM risk prediction model.
| Risk Factors for GDM | Category | Scores |
|---|---|---|
| Maternal age (years) * | <30 | 0 |
| 30–34 | 5 | |
| 35–39 | 8 | |
| ≥40 | 9 | |
| T2DM family history | no | 0 |
| yes | 6 | |
| pre–BMI (kg/m2) ** | <24 | 0 |
| 24–27.9 | 4 | |
| ≥28 | 5 | |
| Age at menarche (year) | >11 | 0 |
| ≤11 | 3 | |
| ART | no | 0 |
| yes | 2 | |
| The positive of related thyroid antibodies *** | no | 0 |
| yes | 5 | |
| Above IOM recommended GWG at the 1st trimester | no | 0 |
| yes | 2 |
GDM, gestational diabetes mellites; T2DM, type 2 diabetes mellites; pre-BMI, pregestational body mass index; ART, assisted reproductive technology; GWG, gestational weight gain. * Pregnant women in derivation and validation cohorts aged 18–45 years old. ** pre-BMI was categorized as <25.0, 25.0–29.9, and ≥30.0 kg/m2 in white patients and <24.0, 24.0–27.9, and ≥28.0 kg/m2 in Asians. *** Thyroid antibodies related to thyroid peroxidase antibodies (TPOAb) and the anti-thyroid peroxidase antibody (TgAb). p value < 0.05 is considered statistically significant.