Based on Table 4, the diagnostic value of TGF-β1 on the laparoscopy outcome of endometriosis has a sensitivity of 80%, a specificity of 90%, a Positive Predictive Value (PPV) of 0.969, a Negative Predictive Value (NPV) of 0.529, a positive likelihood ratio of 8, and a negative likelihood ratio of 0.222. Here, TGFB1 is linked to endometriosis.