Table 2. Family histories of cancer in gastric cancer patients.
| Family history | No. of patients (1805) | % |
|---|---|---|
| Cancer | ||
| Yes | 382 | 21.2 |
| No | 1423 | 78.8 |
| Relatives | ||
| First degree | 348 | 19.3 |
| Second degree | 34 | 1.9 |
| No. of relatives with cancer | ||
| 1 | 258 | 14.3 |
| ≥2 | 124 | 6.9 |
| Cancer type | ||
| Gastric cancer | 190 | 10.5 |
| All other cancers | 192 | 10.6 |
| Gastric cancer | ||
| Yes | 190 | 10.5 |
| No | 1615 | 89.5 |
| Relatives | ||
| First degree | 169 | 9.4 |
| Second degree | 21 | 1.2 |
| No. of relatives with gastric cancer | ||
| 1 | 113 | 6.3 |
| ≥2 | 77 | 4.3 |
| All other cancers without gastric cancer | ||
| Yes | 192 | 10.6 |
| No | 1613 | 89.4 |
| Relatives | ||
| First degree | 179 | 9.9 |
| Second degree | 13 | 0.7 |
| No. of relatives with cancer | ||
| 1 | 145 | 8.0 |
| ≥2 | 47 | 2.6 |