Diagnostic criteria for secondary outcome, gestational diabetes mellitus
| Threshold | Fasting | 1 hour | 2 hours |
| BiB | ≥5.2 | – | ≥7.2 |
| IADPSG | ≥5.1 | ≥10.0 | ≥8.5 |
| WHO | ≥7.0 | – | ≥7.8 |
| Diabetes Canada | ≥5.3 | ≥10.6 | ≥9.0 |
BiB, Born-in-Bradford; IADPSG, International Association of the Diabetes and Pregnancy Study Groups; WHO, World Health Organization.