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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 = 476Autumn (SD) mmol/L n = 530Winter (SD) mmol/L n = 558Spring (SD) mmol/L n = 558p value
Fasting plasma glucose4.4 (0.4)4.5 (0.4)4.5 (0.4)4.5 (0.4)<  0.001
1-h plasma glucose7.6 (1.7)7.4 (1.5)7.4 (1.5)7.4 (1.6)= 0.002
2-h plasma glucose6.4 (1.3)6.3 (1.3)6.1 (1.2)6.3 (1.4)<  0.001
HbA1c4.7 (0.3)4.8 (0.4)4.8 (0.4)4.7 (0.4)<  0.001
HOMA-IR7.5 (4.0)8.1 (4.4)8.4 (4.5)8.1 (4.6)= 0.014
  1. Data represented as mean (SD) or %