LEP and Hyperglycemia: Adiponectin levels were negatively correlated with gestational BMI (r = −0.29, p = 0.013), and leptin levels positively correlated with prepregnancy BMI (r = 0.57, p < 0.0001), gestational BMI (r = 0.39, p = 0.0007), hyperglycemia (r = 0.31, p = 0.0086) and hypertension (r = 0.27, p = 0.0196).