As shown in Table 4, patients with strong tumor ER or PR expression (++ and +++ combined) had significantly reduced serum LH levels (18.6 and 19.1 mIU/ml, respectively) compared to those in patients without tumor ER or PR expression (21.7 and 21 mIU/ml, P = .001 and.008, respectively). Here, PGR is linked to neoplasm.