T-tube vs no T-tube for biliary tract reconstruction in adult orthotopic liver transplantation: An updated systematic review and meta-analysis

Table 1 Characteristics of all studies

Ref.	Study design	Year	T-tube	Number of patients	Gender1	Mean age (year)3	Mean CIT2,3 (min)	Jadad score
López-Andújar et al[25]	CS	2019	Y	240	139/101	58 ± 18	268 ± 109	1
			N	165	89/76	63 ± 14	265 ± 105
Ong et al[24]	CS	2018	Y	88	64/24	55	327	1
			N	37	27/10	51	316
Santosh Kumar et al[23]	RCT	2017	Y	31	NR	43.4 ± 11.1	NR	2
			N	33	NR	48.5 ± 11.6	NR
García Bernardo et al[22]	CS	2016	Y	23	21/2	55.3 ± 9.7	321 ± 108	1
			N	23	20/3	57.7 ± 6.6	343 ± 100
T. Anila et al[21]	RCT	2015	Y	13	NR	NR	73.3 ± 25.1	2
			N	13	NR	NR	74.9 ± 31.5
López-Andújar et al[20]	RCT	2013	Y	95	75/20	53.7 ± 7.68	316 ± 157	3
			N	92	66/26	53.2 ± 8.68	297 ± 143
Weiss et al[19]	RCT	2009	Y	99	69/30	53.3 ± 9.8	597 ± 159	3
			N	95	60/35	55.3 ± 6.7	559 ± 178
Lin et al[17]	CS	2007	Y	51	45/6	50.1 ± 10.0	NR	1
			N	53	47/6	52.0 ± 10.0	NR
Li et al[18]	CS	2007	Y	33	30/3	47.2 ± 9.4	479 + 98	1
			N	51	46/5	42.5 ± 13.5	457 + 89
Amador et al[16]	RCT	2005	Y	53	21/32	51.8 ± 9.4	362	3
			N	54	24/30	50.6 ± 10.6	390
Elola-Olaso et al[15]	CS	2005	Y	50	29/71	51.93 ± 9.8	NR	1
			N	50			NR
Scatton et al[14]	RCT	2001	Y	90	62/28	48.3 ± 9.9	604 ± 194	3
			N	90	58/32	49.2 ± 9.5	570 ± 153
Shimoda et al[13]	CS	2001	Y	76	33/43	51.8 ± 11.7	NR	1
			N	71	32/39	52.9 ± 12.3	NR
Rabkin et al[12]	CS	1998	Y	118	43/75	47.7	610	1
			N	44	7/37	48.0	522
Nuño et al[11]	RCT	1997	Y	50	NR	NR	NR	2
			N	48	NR	NR	NR
Vougas et al[10]	RCT	1996	Y	30	12/18	42.0	678	3
			N	30	13/17	45.0	696
Randall et al[9]	CS	1996	Y	59	NR	NR	NR	1
			N	51	NR	NR	NR

¹Female/Male.

²Mean ± standard deviation or mean.

³Cold ischemia time.

NR: No reference; Y: Yes; N: No; CS: Comparative study; RCT: Randomized control trial; CIT: Cold ischemia time.