GHRL and diabetes mellitus: The leptin/ghrelin ratio correlated with BMI (r = 0.304, p = 0.018), ponderal status (r = 0.29, p = 0.021), diabetes presence (r = 0.318, p = 0.013), insulin (r = 0.287, p = 0.026), and patients’ sex (r = −0.404, p = 0.001).