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Table 1 Correlation between clinicopathological characteristics and BMI before matching

From: Impact of body mass index on surgical outcomes of gastric cancer

Characteristics Low BMI
(n = 107)
Normal BMI
(n = 862)
High BMI
(n = 241)
P value
Gender
 Male 83 677 189 0.974
 Female 24 185 52
Age
  ≤ 60 66 501 134 0.558
  > 60 41 361 107
Tumor location
 Upper third 33 300 92 0.327
 Middle third 15 155 31
 Lower third 53 349 100
 Entire 6 58 18
Tumor size (cm)
  ≤ 5 61 574 175 0.016
  > 5 46 288 66
Borrmann type
 I 19 102 34 0.498
 II 29 232 59
 III 37 305 84
 IV 12 64 13
Pathological type
 Well differentiated 6 74 24 0.511
 Moderately differentiated 22 218 68
 Poorly differentiated 74 540 140
 Signet ring cell or Mucinous 5 30 9
Type of gastrectomy
 Proximal 7 78 25 0.594
 Distal 41 316 97
 Total 59 468 119
Tumor depth
 T1 10 161 52 0.047
 T2 10 71 30
 T3 39 308 86
 T4a 46 315 72
 T4b 2 7 1
Lymph node metastasis
 N0 23 291 99 0.005
 N1 20 141 49
 N2 20 153 33
 N3a 26 182 45
 N3b 18 95 15
Tumor stage
 Ia 8 140 47 0.006
 Ib 3 50 17
 IIa 10 100 34
 IIb 19 122 45
 IIIa 21 109 27
 IIIb 16 163 37
 IIIc 30 178 34