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Table 5 Correlation of average monthly temperature at time of OGTT to fasting plasma glucose, 1-h post-OGTT plasma glucose, 2-h post-OGTT plasma glucose, and HbA1c

From: Seasonality, temperature and pregnancy oral glucose tolerance test results in Australia

Correlation with average monthly temperaturePearson’s rp value
Fasting plasma glucose- 0.145 (−0.187, − 0.103)<  0.001
1-h plasma glucose+  0.079 (+ 0.036, + 0.120)<  0.001
2-h plasma glucose+  0.093 (+ 0.051, + 0.135)<  0.001
HbA1c- 0.069 (−0.113, − 0.025)= 0.002