On the other hand, serum AMH ≤ 4 (OR, ∞ [95% CI, 19.53–∞], p < 0.001), primary infertility (OR, ∞ [95% CI, 0.28–∞] p = 0.99), serum prolactin ≤ 20 (ng/mL) (OR, ∞ [95% CI, 0.08–∞], p = 0.99), baseline LH/FSH (OR, 3.27 [95% CI, 0.21–28.87], p = 0.32), and infertility duration < 4 years (OR, 1.46 [95% CI, 0.17–21.50], p = 0.99) were correlated with a higher prediction of clinical pregnancy in CC-Placebo group (Table 3, Figure 2). This evidence concerns the gene PLOD1 and Infertility.