Effect of portal pressure gradient reduction on outcomes after transjugular intrahepatic portosystemic shunt in portal hypertension patients

Table 2 Univariate and multivariate Cox regression analyses for shunt dysfunction before and after propensity score matching

Characteristics	Before PSM, univariate analyses (n = 815)			Before PSM, multivariate analyses (n = 815)			After PSM, univariate analyses (n = 662)			After PSM, univariate analyses (n = 662)
	HR	95%CI	P	HR	95%CI	P	HR	95%CI	P	HR	95%CI	P
Group B	0.372	0.233-0.594	< 0.001b	0.452	0.261-0.783	0.005b	0.482	0.297-0.783	0.003b	0.496	0.305-0.807	0.005b
Alkaline phosphatase	0.538	0.349-0.830	0.005b	0.545	0.350-0.849	0.007b	0.615	0.394-0.958	0.031a	0.64	0.411-0.998	0.049a
Kalium	0.338	0.117-0.974	0.045a	0.302	0.099-0.922	0.035a
Portal vein diameter	4.075	1.885-8.808	< 0.001b	1.663	0.656-4.214	0.284
C-Reactive protein	0.926	0.854-1.004	0.062
Serum urea nitrogen	0.69	0.422-1.128	0.139
Right hepatic vein free pressure	1.535	0.846-2.786	0.159
Natrium	0.699	0.412-1.187	0.185
Age	1.549	0.671-3.577	0.305

^aP < 0.05.

^bP < 0.01.

HR: hazard ratio; PSM: Propensity score matching.