Median GH at acromegaly diagnosis was 9.3 ng/mL (IQR: 15.2), median IGF‐I × ULN at acromegaly diagnosis was 2.6 (IQR: 1.3) and median prolactin was 7.9 ng/mL (IQR: 7.7). Here, IGF1 is linked to acromegaly.