Table 2 Mean fasting, 1-h post-load and 2-h post-load VPG, HbA1c, and HOMA-IR values by season
From: Seasonality, temperature and pregnancy oral glucose tolerance test results in Australia
Summer (SD) mmol/L n = 476 | Autumn (SD) mmol/L n = 530 | Winter (SD) mmol/L n = 558 | Spring (SD) mmol/L n = 558 | p value | |
|---|---|---|---|---|---|
Fasting plasma glucose | 4.4 (0.4) | 4.5 (0.4) | 4.5 (0.4) | 4.5 (0.4) | < 0.001 |
1-h plasma glucose | 7.6 (1.7) | 7.4 (1.5) | 7.4 (1.5) | 7.4 (1.6) | = 0.002 |
2-h plasma glucose | 6.4 (1.3) | 6.3 (1.3) | 6.1 (1.2) | 6.3 (1.4) | < 0.001 |
HbA1c | 4.7 (0.3) | 4.8 (0.4) | 4.8 (0.4) | 4.7 (0.4) | < 0.001 |
HOMA-IR | 7.5 (4.0) | 8.1 (4.4) | 8.4 (4.5) | 8.1 (4.6) | = 0.014 |