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Table 2 Lymph node count and adequate lymph node ratio

From: A greater lymph node yield is required during pathological examination in microsatellite instability-high gastric cancer

  Lymph node harvest of MSI-H GC Lymph node harvest of MSS GC p value
Adequate ratio Median (quartile) Adequate ratio Median (quartile) Adequate ratio Median (quartile)
All patients 95.1% 30(23–38) 91.9% 28(21–37) 0.145 0.031
Distal gastrectomy 95.6% 30(23–38) 91.2% 27(20–35) 0.061 0.002
Total gastrectomy 91.7% 30(25–39) 94.2% 30(22–41) 0.647 0.962
With NAdj therapy 95.0% 36(30–44) 93.4% 34(24–44) 1.000 0.395
W/out NAdj therapy 95.2% 29(23–38) 91.7% 27(20–36) 0.129 0.034
For Distal gastrectomy only
 AJCC Stage
  I 94.6% 27(21–33) 88.7% 24(19–33) 0.246 0.200
  II 98.0% 34(26–42) 88.4% 28(19–36) 0.052 0.005
  III 96.1% 31(25–38) 95.1% 29(23–37) 1.000 0.278
  IV N.A. N.A. 94.1% 28(20–39) N.A. N.A.
 T category
  Tis and T1 94.6% 25(19–33) 89.5% 26(19–30) 0.563 0.985
  T2 97.1% 33(23–42) 89.2% 27(20–36) 0.206 0.056
  T3 96.6% 35(26–41) 97.6% 30(24–37) 1.000 0.071
  T4 94.9% 31(24–38) 92.5% 28(22–37) 0.783 0.086
 N category
  N0 95.0% 28(22–36) 88.0% 24(19–33) 0.078 0.002
  N+ 96.2% 31(24–38) 93.8% 28(22–37) 0.607 0.083
For Total gastrectomy only
 AJCC Stage
  I 93.3% 26(17–30) 80.0% 26(20–34) 0.172 0.480
  II 100.0% 37(27–46) 97.4% 30(21–41) 1.000 0365
  III 100.0% 37(29–39) 94.8% 32(24–43) 0.364 0.618
  IV N.A. N.A. 86.7% 29(19–43) N.A. N.A.
 T category
  Tis and T1 75.0% 24(16–28) 94.3% 28(21–35) 0.104 0.122
  T2 100.0% 26(26–40) 95.9% 27(20–35) 1.000 0.277
  T3 100.0% 39(36–41) 96.1% 32(24–43) 1.000 0.273
  T4 100.0% 30(27–42) 93.4% 32(22–43) 1.000 0.839
 N category
  N0 92.3% 26(21–42) 93.4% 28(20–37) 0.602 0.738
  N+ 90.9% 32(29–39) 94.5% 32(23–43) 0.472 0.995
  1. MSI microsatellite instability
  2. MSS microsatellite stability
  3. GC gastric cancer
  4. W/out without
  5. NAdj neoadjuvant
  6. N.A. not applicable
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BMC Cancer

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