Table 3.

Characteristics of included studies in the meta-analysis (n)

Ref.	Country	Design	Group	Patients	Male/female	Mean age (yr)
Noh[15] 2000	South Korea	RCT	U-RY RY	54 51	38/16 31/20	59 53
Xu et al[16] 2010	China	RCT	U-RY RY	193 105	102/91 73/32	61.5 ± 7.5 63.2 ± 6.3
He et al[17] 2017	China	Retro	U-RY RY	80 51	50/30 24/27	58.9 ± 5.4 58.7 ± 6.3
Li et al[18] 2011	China	Retro	U-RY RY	127 46	70/57 31/15	58.1 ± 9.1 58.8 ± 11.3
Park et al[19] 2014	South Korea	Retro	U-RY RY	41 55	N/A N/A	N/A N/A
Huang et al[20] 2017	China	Retro	U-RY RY	34 54	28/6 38/16	58.7 ± 15.0 59.8 ± 10.3

N/A: Not available; RCT: Randomized controlled trials; RY: Roux-en-Y; U-RY: Uncut Roux-en-Y.