From: Laparoscopic versus open approach in gastrectomy for advanced gastric cancer: a systematic review
 | LG | OG | LG | OG | LG | OG | ||||||||||||||||||
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 | Upper | Middle | Lower | Upper | Middle | Lower | T1 | T2 | T3 | T4 | T1 | T2 | T3 | T4 | N0 | N1 | N2 | N3a | N3b | N0 | N1 | N2 | N3a | N3b |
Zhang et al. [32] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Zhang et al. [40] | 30 | 18 | 63 | 35 | 24 | 60 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Zhao et al. [18] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Zhang et al. [38] | 10 | 23 | 59 | 12 | 26 | 54 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Xu et al. [49] | 185 | 190 | 391 | 97 | 114 | 195 | Â | 148 | 371 | 249 | Â | 97 | 195 | 98 | 178 | 159 | 176 | 191 | 64 | 117 | 99 | 92 | 96 | 26 |
Xu et al. [39] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | 13 | 11 | 21 | 15 | 7 | 15 | 11 | 18 | 16 | 17 |
Wu et al. [31] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Wang et al. [48] | 2 | 29 | 181 | 2 | 35 | 173 | 58 | 45 | 65 | 54 | 52 | 35 | 71 | 62 | 100 | 43 | 30 | 49 | 93 | 43 | 39 | 45 | ||
Shuang et al. [17] | Â | 21 | 14 | Â | 22 | 13 | Â | 15 | 20 | Â | Â | 13 | 22 | Â | 23 | 5 | 7 | Â | 19 | 11 | 5 | Â | Â | |
Shinohara et al. [27] | 42 | 94 | 46 | 26 | 63 | 34 | 25 | 96 | 65 | Â | 17 | 58 | 48 | Â | 73 | 65 | 45 | 3 | 44 | 49 | 28 | 1 | Â | |
Shi et al. [44] | 35 | 46 | 81 | 35 | 39 | 86 | Â | 30 | 132 | Â | Â | 35 | 125 | Â | 47 | 61 | 35 | 19 | 33 | 66 | 40 | 21 | ||
Scatizzi et al. [16] | Â | 10 | 15 | Â | 9 | 16 | 0 | 9 | 20 | 1 | 0 | 9 | 20 | 1 | 5 | 11 | 14 | Â | 6 | 13 | 11 | Â | Â | |
Qiu et al. [29] | 3 | 11 | 16 | 6 | 7 | 21 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Park et al. [43] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Moisan et al. [23] | 12 | 7 | 12 | 13 | 10 | 8 | 15 | 4 | 5 | 7 | 15 | 4 | 5 | 7 | 22 | 2 | 4 | 3 | 23 | 2 | 4 | 3 | ||
Lu et al. [37] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Lin et al. [26] | 24 | 17 | 42 | 29 | 11 | 43 | Â | 30 | 53 | Â | Â | 30 | 53 | Â | 30 | 17 | 17 | 19 | 29 | 20 | 15 | 19 | ||
Li et al. [36] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Li et al. [36] | 62 | 10 | 29 | 62 | 10 | 29 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Li et al. [42] | Â | Â | Â | Â | Â | Â | Â | 108 | 252 | 99 | Â | 152 | 473 | 231 | 138 | 88 | 100 | 104 | 29 | 190 | 170 | 183 | 219 | 94 |
Lee et al. [47] | Â | Â | Â | Â | Â | Â | 140 | 104 | 137 | 132 | 127 | 114 | 137 | 120 | 226 | 96 | 90 | 64 | 9 | 222 | 103 | 73 | 74 | 26 |
Kinoshita et al. [46] | 266 | 395 | 436 | 195 | 190 | 266 | Â | 148 | 531 | 479 | Â | 39 | 253 | 374 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Kim et al. [22] | 14 | 18 | 56 | 18 | 16 | 53 | Â | 44 | 26 | 18 | Â | 41 | 23 | 24 | 50 | 16 | 17 | 5 | 46 | 10 | 21 | 11 | ||
Inokuchi et al. [41] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Huang et al. [14] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Hu et al [34] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | 214 | 87 | 88 | 129 | 216 | 79 | 98 | 126 | ||
Hao et al. [33] | 108 | 162 | 358 | 101 | 165 | 313 | Â | 218 | 410 | Â | Â | 196 | 383 | Â | 188 | 134 | 306 | Â | Â | 144 | 135 | 300 | Â | Â |
Hamabe et a. [21] | 17 | 28 | 21 | 24 | 40 | 37 | 21 | 45 | Â | Â | 18 | 83 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Gordon et al. [25] | 18 | 48 | Â | 88 | 44 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Fang et al. [28] | Â | Â | Â | Â | Â | Â | Â | 23 | 42 | 22 | 25 | 39 | 23 | Â | 38 | 21 | 17 | 11 | 32 | 23 | 22 | 10 | ||
Cui et al. [30] | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Chun et al. [20] | 39 | 13 | Â | 55 | 12 | Â | Â | Â | Â | Â | Â | Â | Â | Â | 33 | 9 | 9 | 1 | 35 | 12 | 12 | 8 | ||
Chen et al. [19] | Â | Â | Â | Â | Â | Â | Â | 81 | 143 | Â | Â | 50 | 62 | Â | 81 | 42 | 47 | 54 | 41 | 25 | 25 | 21 | ||
Chan et al. [45] | 23 | 20 | 11 | 48 | 47 | 72 | 23 | 28 | 3 | Â | Â | 59 | 85 | 23 | 24 | 30 | Â | Â | Â | 74 | 93 | Â | Â | Â |
Cai et al. [15] | Â | Â | Â | Â | Â | Â | Â | 24 | 25 | Â | Â | 21 | 26 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Bo et al. [24] | 64 | 23 | 30 | 65 | 21 | 31 | 50 | 67 | Â | Â | Â | 47 | 70 | Â | 29 | 42 | 46 | Â | Â | 26 | 47 | 44 | Â | Â |