Moreover, patients with i-VFs had higher serum GH levels at acromegaly diagnosis (21.8 ng/mL; IQR: 10.2 ng/mL) than those who did not experience i-VFs (median GH 10.3 ng/mL; IQR: 6.5 ng/mL; P = .01) (see Table 3). Here, GH1 is linked to acromegaly.