Cost-effectiveness analysis of early veno-venous hemofiltration for severe acute pancreatitis in China

Table 3 Weighted total hospitalization costs

Modalities	Cost (C)1			Incremental cost (ΔC)2
	WM	Max	Min	WMD
CVVH/LVVH only	$18 826 (144 051 RMB)	$33 254 (254 455 RMB)	$4397 (33 647 RMB)	$13 017 (99 602 RMB)
SVVH only	$5809 (44 449 RMB)	$9359 (71 613 RMB)	$2259 (17 286 RMB)
SVVH plus PD	$7868 (60 205 RMB)	$10 622 (81 279 RMB)	$5114 (39 130 RMB)	$2059 (15 756 RMB)
Control	$11 317 (86 597 RMB)	$17 006 (130 128 RMB)	$5628 (43 066 RMB)	$5508 (42 148 RMB)

¹All the costs were converted to 2005 price before combination.

²SVVH only, the least costly arm, was selected as common baseline for other arms to reference to. WM: Weighted mean; WMD: Weighted mean difference; CVVH: Continuous veno-venous hemofiltration; LVVH: Long-term veno-venous hemofiltration; SVVH: Short-term veno-venous hemofiltration; PD: Peritoneal dialysis.