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Table 2 Serum LH and testosterone efficacy parameters according to “on versus off LH-RH agonist” in the cohort study

From: Accuracy of serum luteinizing hormone and serum testosterone measurements to assess the efficacy of medical castration in prostate cancer patients

Marker Sensitivity Specificity Efficiency PPVa NPVb
Serum LHc 482/488 (98.8) 302/303 (99.7) 784/791 (99.1) 482/483 (99.8) 302/308 (98.1)
Serum testosterone 408/488 (83.6) 191/303 (63.0) 599/791 (75.7) 408/520 (78.5) 191/271 (75.7)
  1. a PPV Positive predictive value, b NPV Negative predictive value, c LH Luteinizing hormone