PLOD1 and central precocious puberty: In our study, the peak value of the LH/FSH ratio was higher in pubertal girls (0.61 vs. 0.27, p < 0.001), was reached in the first hour from the stimulus, and at 30 min showed a sensitivity of 94.9% with an AUC of 0.997 and a value ≥0.76, representing an additional value in the diagnosis of CPP.