Moreover, negative correlations were revealed in case of lymphocyte count, LMR, and random GH (r = −0.344, p < 0.001; r = −0.192, p = 0.007, respectively) and IGF-1 normalized to ULN range for age and sex (r = −0.318, p < 0.001; r = −0.152, p = 0.034, respectively) in the whole group involving acromegaly and NFPA patients. Here, IGF1 is linked to non-functioning pituitary adenoma.