Table II.

Correlation analyses between maternal serum β-klotho, FGF-19, and the other parameters in the ICP group

Parameter		FGF-19 [pg/ml]	β-klotho [pg/ml]	TBA [µmol/l]	Age [year]	BMI [kg/m2]	GA sampling [weeks]	ALT [IU/l]	AST [IU/l]	GGT [IU/l]	Direct bilirubin [mg/dl]
β-klotho [pg/ml]	rs	0.368*		0.70	0.235	0.096	0.042	–0.097	0.013	0.306	–0.174
	p	0.020		0.666	0.144	0.556	0.795	0.551	0.938	0.055	0.283
FGF-19 [pg/ml]	rs		0.368*	–0.009	0.160	0.389*	–0.062	0.114	0.094	0.080	0.096
	p		0.020	0.954	0.323	0.013	0.702	0.483	0.562	0.622	0.554

^*Correlation is significant at the 0.05 level (2-tailed).

BMI – body mass index, ALT – alanine aminotransferase, AST – aspartate aminotransferase, GGT – γ-glutamyl transferase, ICP – intrahepatic cholestasis of pregnancy, TBA – total bile acids, GA – gestational age.