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. 2019 Oct 17;9:14909. doi: 10.1038/s41598-019-51487-0

Table 4.

The consistency of different number of biopsy specimen protocols (two pieces, three pieces, four pieces, respectively) compared with the standard 5 biopsy specimens protocol based on OLGA stage.

Stage0 StageI StageII StageIII StageIV Total Consistency (%) Kendall’s tau-b P value
OLGA

Five biopsy pieces

(C1C2A3A1A2)

156 109 62 28 13 368 100 1.000
four biopsy pieces (C1C2A3A1) 192 86 55 22 13 368 86.68 0.874 <0.001
four biopsy pieces (C1C2A3A2) 161 111 56 27 13 368 96.74 0.971 <0.001
four biopsy pieces (C1C2A1A2) 177 111 50 23 7 368 86.14 0.881 <0.001
four biopsy pieces
(C2A3 A1A2) 156 111 64 26 11 368 97.83 0.992 <0.001
four biopsy pieces
(C1A3 A1A2) 159 106 71 28 4 368 94.29 0.982 <0.001
three biopsy pieces (C1C2A3) 209 83 46 20 10 368 78.26 0.804 <0.001
three biopsy pieces (C1C2A1) 230 83 40 9 6 368 65.76 0.719 <0.001
three biopsy pieces (C1C2A2) 186 112 41 22 7 368 82.07 0.839 <0.001
three biopsy pieces (C1A3A1) 200 78 63 23 4 368 79.89 0.850 <0.001
three biopsy pieces (C1A1A2) 182 112 52 19 3 368 82.61 0.844 <0.001
three biopsy pieces (C1A3A2) 164 108 64 28 4 368 91.30 0.954 <0.001
three biopsy pieces (C2A3A1) 192 89 54 23 10 368 84.78 0.866 <0.001
three biopsy pieces (C2A1A2) 180 110 52 20 6 368 83.70 0.870 <0.001
three biopsy pieces (C2A3A2) 161 113 57 26 11 368 94.84 0.964 <0.001
two biopsy pieces (C1A3) 220 74 51 19 4 368 73.37 0.761 <0.001
two biopsy pieces (C1A1) 254 71 33 7 3 368 60.33 0.629 <0.001
two biopsy pieces (C1A2) 192 112 43 18 3 368 78.53 0.800 <0.001
two biopsy pieces (C2A3) 211 83 47 18 9 368 77.45 0.788 <0.001
two biopsy pieces (C2A1) 239 80 35 10 4 368 63.32 0.682 <0.001
two biopsy pieces (C2A2) 189 112 41 20 6 368 79.62 0.828 <0.001

Abbreviations: C1, larger curvature of the corpus; C2, lesser curvature of the corpus; A3, incisura angularis; A1, larger curvature of the antrum; A2, lesser curvature of the antrum.