(A–E) Correlation between age and plasma ghrelin (A), plasma total ghrelin (B), plasma LEAP2 (C), plasma LEAP2/ghrelin molar ratio (D), and BMI (E) were calculated using 2-tailed Pearson correlation coefficients. n = 19. (F–H) Correlation between BMI and plasma LEAP2 (F), plasma ghrelin (G), and plasma LEAP2/ghrelin molar ratio (H) were calculated using 2-tailed Pearson correlation coefficients. n = 19. (I–K) Correlation between plasma growth hormone and plasma LEAP2 (I), plasma ghrelin (J), and plasma total ghrelin (K) were calculated using 2-tailed Pearson correlation coefficients. n = 19.