Role of the systemic immune-inflammation index in threatened abortion patients and predicting of abortion.

SII, NLR, MLR, RDW, and platelet to lymphocyte ratio (PLR) levels were significantly increased in patients with TA. This study supports the idea that several inflammatory pathways may play an important role in the pathogenesis of this disorder. SII may be a much better marker than NLR and PLR for predicting the inflammatory status of the disease and abortion in an ongoing pregnancy.