Abstract
 Aim: To evaluate the effect of monocyte count and monocyte-based whole blood cell indices in the prediction of intrahepatic cholestasis of pregnancy (ICP) in the first trimester.
 Materials and Method: The clinical data of patients who presented to the Perinatology Clinic of the Turkish Ministry of Health ----xxxxxxx--- ICP between January 1, 2021, and October 1, 2022, were evaluated retrospectively. Maternal demographic parameters, gestational age at birth, fetal birth weight, first-trimester white blood cell, neutrophil, platelet, monocyte, lymphocyte, and basophil counts, lymphocyte-to-monocyte ratio (LMR), platelet-to-monocyte ratio (PMR), neutrophil-to-monocyte ratio (NMR), and basophil-to-monocyte ratio (BMR) were recorded. These parameters were compared between the ICP and control groups. The relationship between monocyte count, monocyte-based blood cell indices, and fasting bile acid levels was evaluated in the ICP group. The cut-off values of the first-trimester monocyte count and monocyte-based blood cell indices for the prediction of ICP were determined.
 Results: Gestational week at birth and fetal birth weight were significantly lower, and the neonatal intensive care requirement was significantly higher in the ICP group (p