Table 3. Prediction of resistance to IVIG on logistic regression analysis in the NT-proBNP group selected through propensity score matching

Variables	Univariate analysis				Multivariate analysis
	OR	95% CI	Nagelkerke R2	P value	OR	95% CI	P value
Male gender	1.489	1.184–1.873	0.009	0.001	1.649	1.294–2.101	< 0.001
Age (year)	1.069	1.013–1.128	0.004	0.016
Height (cm)	1.013	1.006–1.019	0.010	< 0.001
BSA (m2)	2.474	1.330–4.601	0.006	0.004	1.309	0.570–3.009	0.526
Complete presentation	1.630	1.222–2.175	0.009	0.001	1.305	0.963–1.770	0.086
Neutrophil (%)	1.039	1.031–1.047	0.073	< 0.001	1.029	1.019–1.039	< 0.001
Hemoglobin (g/dL)	0.884	0.793–0.986	0.004	0.027	0.800	0.700–0.914	0.001
Platelet (× 1,000 /μL)	0.998	0.997–0.999	0.011	< 0.001	0.998	0.997–0.999	0.002
CRP (mg/dL)	1.046	1.029–1.062	0.024	< 0.001	1.008	0.998–1.018	0.134
Albumin (g/dL)	0.553	0.431–0.708	0.016	< 0.001	0.831	0.627–1.100	0.195
AST (U/L)	1.001	1.001–1.002	0.020	< 0.001
ALT (U/L)	1.002	1.001–1.002	0.017	< 0.001	1.001	1.000–1.001	0.100
Total bilirubin (mg/dL)	1.653	1.476–1.851	0.058	< 0.001	1.297	1.144–1.470	< 0.001
Na+ (mEq/L)	0.903	0.865–0.942	0.016	< 0.001	0.975	0.930–1.021	0.281
NT-proBNP (pg/mL)	1.000	1.000–1.000	0.015	< 0.001
LT-NT-proBNP	1.255	1.161–1.356	0.025	< 0.001
Z score	1.399	1.247–1.569	0.025	< 0.001	1.153	1.017–1.308	0.026
Pyuria	1.390	1.112–1.738	0.006	0.004	0.971	0.757–1.246	0.817

IVIG: intravenous immunoglobulin; NT-proBNP: N-terminal pro-B-type natriuretic peptide; OR: odds ratio; CI: confidence interval; BSA: body surface area; CRP: C-reactive protein; AST: aspartate aminotransferase; ALT: alanine aminotransferase; LT-NT-proBNP: log transformed NT-proBNP.