Table I.
Association between the characteristics of patients with gastric cancer and NK cell ratios in peripheral blood.
| NK cell level | |||||
|---|---|---|---|---|---|
| Clinicopathological feature | Low (n=30) (%) | High (n=92) (%) | Total (n) (%) | χ2-value | P-value |
| Sex | 0.756 | 0.384 | |||
| Male | 11 (9.0) | 26 (21.3) | 37 (30.3) | ||
| Female | 19 (15.6) | 66 (54.1) | 85 (69.7) | ||
| Age (years) | 0.005 | 0.941 | |||
| ≤60 | 20 (16.4) | 62 (50.8) | 82 (67.2) | ||
| >60 | 10 (8.2) | 30 (24.6) | 40 (32.8) | ||
| Tumor diameter (cm) | 3.138 | 0.076 | |||
| ≤4 | 7 (5.7) | 38 (31.1) | 45 (36.8) | ||
| >4 | 23 (18.9) | 54 (44.3) | 77 (63.2) | ||
| Tumor location | 1.508 | 0.470 | |||
| Upper | 5 (4.1) | 10 (8.2) | 15 (12.3) | ||
| Middle | 9 (7.3) | 38 (31.1) | 47 (38.5) | ||
| Lower | 16 (13.1) | 44 (36.1) | 60 (49.2) | ||
| Tumor differentiation | 0.394 | 0.530 | |||
| High | 18 (14.8) | 61 (50.0) | 79 (64.8) | ||
| Low | 12 (9.8) | 31 (25.4) | 43 (35.2) | ||
| CA19-9 (U/ml) | 0.689 | 0.406 | |||
| ≤37 | 25 (20.5) | 70 (57.4) | 95 (77.9) | ||
| >37 | 5 (4.1) | 22 (18.0) | 27 (22.1) | ||
| CEA level (ng/ml) | 1.710 | 0.191 | |||
| ≤5 | 21 (17.2) | 52 (42.6) | 73 (59.8) | ||
| >5 | 9 (7.4) | 40 (32.8) | 49 (40.2) | ||
| HP infection | 0.265 | 0.607 | |||
| - | 17 (13.9) | 57 (46.7) | 74 (60.6) | ||
| + | 13 (10.7) | 35 (28.7) | 48 (39.4) | ||
| TNM stage | 14.407 | 0.001 | |||
| I | 18 (14.8) | 21 (17.2) | 39 (32.0) | ||
| II | 7 (5.7) | 39 (32.0) | 46 (37.7) | ||
| III | 5 (4.1) | 32 (26.2) | 37 (30.3) | ||
| T stage | 16.505 | 0.001 | |||
| 1 | 20 (16.4) | 24 (20.0) | 44 (36.1) | ||
| 2 | 5 (4.1) | 26 (21.3) | 31 (25.4) | ||
| 3 | 3 (2.4) | 28 (23.0) | 31 (25.4) | ||
| 4 | 2 (1.6) | 14 (11.5) | 16 (13.1) | ||
| N stage | 9.749 | 0.021 | |||
| 0 | 18 (14.8) | 28 (23.0) | 46 (37.8) | ||
| 1 | 6 (4.9) | 22 (18.0) | 28 (22.9) | ||
| 2 | 2 (1.6) | 23 (18.9) | 25 (20.5) | ||
| 3 | 4 (3.2) | 19 (15.6) | 23 (18.8) | ||
NK, natural killer; HP, Helicobacter pylori.