In-hospital mortality of hepatorenal syndrome in the United States: Nationwide inpatient sample

Table 2 The annual trend in hospital mortality, liver transplantation, renal replacement therapy, length of hospital stay, hospitalization cost in hepatorenal syndrome admission from 2005 to 2014 (mean ± SD)

Year	Unweighted sample1	Weighted sample1	Hospital mortality weighted % ± SE	Liver transplantation weighted % ± SE	Renal replacement therapy weighted % ± SE	Length of stay (d)	Hospital cost (United States $)
Total	4931	23941	31.8 ± 0.7	1.7 ± 0.2	20.6 ± 0.6	8.8 ± 11.0	73731 ± 135876
2005	312	1471	43.8 ± 2.8	0.7 ± 0.5	13.8 ± 2.0	8.2 ± 8.6	42857 ± 67978
2006	330	1551	40.8 ± 2.7	0.6 ± 0.4	13.6 ± 1.9	7.2 ± 7.6	41841 ± 67254
2007	287	1358	36.7 ± 2.9	1.1 ± 0.6	17.0 ± 2.2	8.0 ± 8.9	49879 ± 77833
2008	367	1737	37.1 ± 2.5	1.9 ± 0.7	21.7 ± 2.2	8.6 ± 9.4	65419 ± 109901
2009	486	2363	31.1 ± 2.1	2.2 ± 0.7	20.8 ± 1.8	8.9 ± 11.3	71737 ± 123006
2010	610	2973	31.1 ± 1.9	0.9 ± 0.4	21.3 ± 1.7	9.3 ± 13.7	69778 ± 106971
2011	628	2934	30.3 ± 1.9	1.9 ± 0.5	23.3 ± 1.7	8.6 ± 9.6	82917 ± 154746
2012	603	3015	31.2 ± 1.9	2.0 ± 0.6	21.9 ± 1.7	9.1 ± 13.5	74951 ± 113671
2013	622	3110	28.3 ± 1.8	2.7 ± 0.7	21.4 ± 1.6	9.4 ± 12.1	95671 ± 210352
2014	686	3430	24.1 ± 1.6	1.7 ± 0.5	22.4 ± 1.6	9.0 ± 9.0	90829 ± 149495
P value			< 0.001	0.02	< 0.001	< 0.001	< 0.001

¹Sample of hepatorenal syndrome patients having complete data on mortality status.

SE: Standard error.