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Table 1 Details of the articles included in the meta-analysis

From: A comparison between pylorus-preserving and distal gastrectomy in surgical safety and functional benefit with gastric cancer: a systematic review and meta-analysis

References Approach Age Sex (m/f) BMI Tumor size Stage Anastomosis Nervea Antral cuff (cm)b Preservation of LN station 5c
I II III
Park et al. [4] CDG 17 56.2 ± 9.4 13/4 NA NA 17 0 0 BI    
  PPG 22 57.3 ± 9.5 18/4 NA NA 22 0 0 Gastro-gastro Hepatic, pyloric 3 No
Zhu et al. [5] CDG 61 NA 34/27 NA NA 56 4 1 BII 24 + RY 37    
  PPG 145 NA 67/78 NA NA 138 4 3 Gastro-gastro NA 3 Yes
Imada et al. [6] CDG 25 NA NA NA NA NA NA NA NA    
  PPG 20 NA NA NA NA NA NA NA NA Hepatic, pyloric 1.5 Yes
Xia et al. [7] LADG 97 57.5 ± 12.1 63/34 22.7 ± 4.8 1.8 ± 0.7 97 0 0 BI    
  LAPPG 70 56.8 ± 10.9 46/24 22.3 ± 2.3 1.8 ± 0.7 70 0 0 Gastro-gastro Hepatic, pyloric 3 Yes
Shibata et al. [8] CDG 38 60 ± 2 25/13 NA NA 36 0 0 BI    
  PPG 36 64 ± 1 23/13 NA NA 38 0 0 Gastro-gastro NA 1.5 No
Suh et al. [9] LADG 176 59.1 ± 12.0 107/69 24.0 ± 3.1 2.3 ± 1.2 166 10 0 BI 162 + BII13 + RY 1    
  LAPPG 116 54.1 ± 12.3 55/61 23.3 ± 3.0 2.6 ± 1.2 108 7 1 Gastro-gastro NA NA NA
Isozaki et al. [15] CDG 14 52.7 11/3 NA NA NA NA NA NA    
  PPG 15 57.3 10/5 NA NA NA NA NA Gastro-gastro Hepatic, pyloric 1.5 Yes
Zhang et al. [16] CDG 28 58.0 ± 17.1 21/7 NA NA 28 0 0 BI    
  PPG 15 58.9 ± 9.4 11/4 NA NA 15 0 0 Gastro-gastro Hepatic, pyloric, celiac 1.5 No
Hotta et al. [17] CDG 45 NA NA NA NA 45 0 0 BI    
  PPG 19 NA NA NA NA 19 0 0 Gastro-gastro Hepatic, pyloric 1.5 Yes
Tomita et al. [18] CDG 22 NA NA NA NA NA NA NA NA    
  PPG 10 NA NA NA NA NA NA NA NA Hepatic, pyloric 1.5 No
Urushihara et al. [19] LADG 26 68 15/11 NA NA 26 0 0 NA    
  LAPPG 26 68 14/12 NA NA 25 1 0 Gastro-gastro Hepatic, pyloric 3 NA
Nunobe et al. [20] CDG 203 NA 127/76 NA NA NA NA NA BI    
  PPG 194 NA 121/73 NA NA NA NA NA Gastro-gastro Hepatic, pyloric, celiac 2.5–6.0 No
Ikeguchi et al. [21] CDG 87 64.2 56/31 NA 3.1 79 6 2 BI    
  PPG 46 62.8 24/22 NA 2.6 46 0 0 Gastro-gastro Hepatic, pyloric 3 Yes
Lee et al. [22] CDG 305 NA NA NA NA NA NA NA NA    
  PPG 148 NA NA NA NA NA NA NA NA NA 4 NA
Tomikawa et al. [23] LADG 12 68.7 ± 4.8 6/6 BW 2.6 NA NA NA Gastroduodenal    
  LAPPG 9 69.2 ± 6.9 6/3 NA 3.9 NA NA NA Gastro-gastro Hepatic, pyloric, celiac 3 Yes
Fujita et al. [24] CDG 909 61.6 ± 9.1 594/311 22.7 ± 3.0 NA NA NA NA BI    
  PPG 313 61.5 ± 8.7 183/126 22.7 ± 3.0 NA NA NA NA Gastro-gastro NA NA NA
Isozaki et al. [25] CDG 21 61.0 ± 10.0 17/8 NA 3.2 ± 1.6 25 0 0 BI 21 + RY 4    
  PPG 15 61.2 ± 12.4 6/9 NA 2.5 ± 9.9 15 0 0 Gastro-gastro Hepatic, pyloric, celiac 4 NA
Aizawa et al. [26] CDG 502 61.7 ± 11.4 309/193 22.6 ± 3.08 27.3 ± 12.5 502 0 0 BI 334 + BII 2 + RY 166    
  PPG 502 60.7 ± 9.6 301/201 22.7 ± 3.14 27.4 ± 12.7 502 0 0 Gastro-gastro NA NA NA
Hosoda et al. [27] LADG 32 63.2 ± 8.8 13/19 22.5 ± 3.2 2.8 ± 1.7 31 0 1 NA    
  LAPPG 32 64.0 ± 9.5 13/19 22.7 ± 2.6 2.9 ± 1.5 30 2 0 NA Hepatic, pyloric, celiac 4 Yes
Eom et al. [28] LADG 195 56.5 ± 11.8 114/81 24.0 ± 3.1 2.8 ± 1.5 195 0 0 BII    
  LAPPG101 58.3 ± 12.0 54/47 24.1 ± 3.1 2.5 ± 1.4 101 0 0 Gastro-gastro Hepatic, pyloric 3–5 Yes
Tsujiura et al. [12] LADG 101 59.4 ± 11.1 72/29 27.0 ± 2.3 NA NA NA NA BI 43 + RY 58    
  LPPG 101 59.5 ± 9.3 71/30 27.1 ± 2.3 NA NA NA NA Gastro-gastro Hepatic, pyloric NA Yes
  1. LADG laparoscopic-assisted distal gastrectomy, LAPPG laparoscopic-assisted pylorus-preserving gastrectomy, CDG conventional distal gastrectomy, BI Billroth I, BII Billroth II, R-Y Roux-en-Y, Gastro-gastro gastrogastrostomy, NA not applicable
  2. aPreservation of the branches of vagus nerve in pylorus-preserving gastrectomy (PPG)
  3. bLength of the antral cuff in PPG
  4. cPreservation of lymph nodes (LN) station 5 in PPG