Percutaneous transhepatic and endoscopic biliary drainage for malignant biliary tract obstruction: a meta-analysis

Table 2 Summary of primary and secondary outcomes and complications

First author	Year	Definition of therapeutic success	Therapeutic success^a,%	30-day mortality^a,%	Overall complications^a,%	Incidence of cholangitis^a,%	Incidence of pancreatitis^a,%
Saluja	2008	Bilirubin declined to <50% of the pretreatment value within 7 days after drainage	89 vs. 41^b	4 vs. 8	18 vs. 52^b	11 vs. 48^b	0 vs. 3.7
Piñol	2002	Bilirubin declined by ≥ 20% of the pretreatment value	71 vs. 42^b	36 vs. 42	61 vs. 35	NA	0 vs. 3.8
Speer	1987	Bilirubin declined by ≥20% of the pretreatment value during the initial admission	61 vs. 81	33 vs.15	67 vs. 19^b	13.9 vs. 17.9	NA

^aPercutaneous transhepatic biliary drainage vs. endoscopic biliary drainage. ^bSignificant difference between PTBD and EBD. NA, not available.

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