Table 1 Demographics and clinicopathologic characteristics of patients with gastric cancer
|  | BMI < 19 kg/m2 (n = 29) | BMI ≥ 19 kg/m2 (n = 273) | P-value | ||
|---|---|---|---|---|---|
H. pylori infection | |||||
 Y | 2 | 6.9% | 17 | 7.2% | 0.975 |
 N | 27 | 93.1% | 220 | 92.8% |  |
Age | 56.69 ± 13.1 57 (30–79) | 58.81 ± 11.27 59 (23–82) |  | ||
Sex | Â | Â | Â | Â | Â |
 M | 16 | 55.2% | 180 | 75.9% | 0.016 |
 F | 13 | 44.8% | 57 | 24.1% |  |
CEA level | 14.32 ± 4.53 | 11.58 ± 3.38 | 0.004 | ||
T category | |||||
 1a | – | – | 22 | 9.3% | 0.003 |
 1b | – | – | 22 | 9.3% | 0.002# |
 2 | 3 | 10.3% | 34 | 14.3% |  |
 3 | 3 | 10.3% | 25 | 10.5% |  |
 4a | 18 | 62.1% | 127 | 53.6% |  |
 4b | 5 | 17.2% | 7 | 3% |  |
N category | |||||
 0 | 4 | 13.8% | 79 | 33.3% | 0.301 |
 1 | 7 | 24.1% | 41 | 17.3% | 0.082$ |
 2 | 7 | 24.1% | 41 | 17.3% |  |
 3a | 6 | 20.7% | 45 | 19% |  |
 3b | 5 | 17.2% | 31 | 13.1% |  |
TNM category | |||||
 IA | 0 |  | 34 | 14.3% | 0.213 |
 IB | 1 | 3.4% | 23 | 9.7% | 0.002& |
 IIA | 3 | 10.3% | 20 | 8.4% |  |
 IIB | 2 | 6.9% | 27 | 11.4% |  |
 IIIA | 6 | 20.7% | 31 | 13.1% |  |
 IIIB | 6 | 20.7% | 37 | 15.6% |  |
 IIIC | 11 | 37.9% | 65 | 27.4% |  |