Table 3.

Pairwise statistical comparison of the predictive performance (AUC values) of NLR, PLR, SII, and PIV based on ROC curve analysis for diagnosing hyperemesis gravidarum

	NLR (AUC = 0.608)	PLR (AUC = 0.610)	SII (AUC = 0.636)	PIV (AUC = 0.637)
NLR	–	P = 0.955	P = 0.111	P = 0.344
PLR	–	–	P = 0.321	P = 0.463
SII	–	–	–	P = 0.979
PIV	–	–	–	–

AUC area under the curve, CI confidence interval, NLR neutrophil-to-lymphocyte ratio, PLR platelet-to-lymphocyte ratio, SII systemic immune-inflammation index, PIV pan-immune-inflammation value

p values are from DeLong’s test for comparison of ROC curves