From: Seasonality, temperature and pregnancy oral glucose tolerance test results in Australia
Summer (%) n = 476 | Autumn (%) n = 530 | Winter (%) n = 558 | Spring (%) n = 558 | p value | |
---|---|---|---|---|---|
GDM prevalence by fasting plasma glucose ≥5.1 mmol/L n = 79 | 5.5% | 6.4% | 9.5% | 8.4% | = 0.055 |
GDM prevalence by 1-h post-load glucose ≥10.0 mmol/L n = 31 | 6.5% | 3.6% | 2.5% | 3.2% | = 0.009 |
GDM prevalence by 2-h post-load glucose ≥8.5 mmol/L n = 12 | 4.2% | 3.2% | 1.6% | 4.7% | = 0.033 |
Overall GDM prevalence by WHO criteria n = 122 | 13.9% | 12.1% | 12.9% | 15.1% | = 0.510 |