Table 1.
Demographic information.
| Characteristics | Cases (n = 768) | Controls (n = 768) | P |
|---|---|---|---|
| Age (years, mean ± SD) | 60.5 ± 9.4 | 58.6 ± 15.5 | 0.067 |
| Gender (n (%)) | |||
| Female | 287 (37.4) | 319 (41.5) | |
| Male | 481 (62.6) | 449 (58.5) | 0.095 |
| Hypertension (n (%)) | |||
| No | 526 (68.5) | 508 (66.1) | |
| Yes | 242 (31.5) | 260 (33.9) | 0.327 |
| Diabetes (n (%)) | |||
| No | 686 (89.3) | 667 (86.8) | |
| Yes | 82 (10.7) | 101 (13.2) | 0.135 |
| Smoking status (n (%)) | |||
| No | 556 (72.4) | 625 (81.4) | |
| Yes | 212 (27.6) | 143 (18.6) | <0.001 |
| Drinking status (n (%)) | |||
| No | 593 (77.2) | 669 (87.1) | |
| Yes | 175 (22.8) | 99 (12.9) | <0.001 |
| Residence (n (%)) | |||
| Rural | 440 (57.3) | 414 (53.9) | |
| Urban | 328 (42.7) | 354 (46.1) | 0.182 |
| FH (n (%)) | |||
| No | 703 (91.5) | 715 (93.1) | |
| Yes | 65 (8.5) | 53 (6.9) | 0.250 |
| Tumor differentiation (n (%)) | |||
| Well + moderate | 169 (22) | ||
| Poor | 599 (78.0) | ||
| Depth of tumor infiltration (n (%)) | |||
| T1 | 163 (21.2) | ||
| T2 | 97 (12.6) | ||
| T3 | 323 (42.1) | ||
| T4 | 185 (24.1) | ||
| Lymph node metastasis (n (%)) | |||
| Negative | 275 (35.8) | ||
| Positive | 493 (64.2) | ||
| Localization (n (%)) | |||
| Cardia | 375 (48.8) | ||
| Noncardia | 393 (51.2) |
SD, standard deviation; FH, family history of GC. The significant results are in bold.