Table 3. Risks for offspring histology specific gastric cancer by familial gastric cancers, (1990–2004).
| Histologies | O | SIR | 95%CI | O | SIR | 95%CI | ||
|---|---|---|---|---|---|---|---|---|
| Stomach, all | 128 | 1.76 | 1.47 | 2.09 | 17 | 2.80 | 1.63 | 4.49 |
| Adenocarcinoma | 81 | 1.79 | 1.42 | 2.23 | 11 | 2.90 | 1.44 | 5.20 |
| Carcinoid | 5 | 2.26 | 0.71 | 5.32 | 0 | |||
| Signet ring cancer | 18 | 1.99 | 1.18 | 3.15 | 4 | 5.40 | 1.40 | 13.95 |
| Gastrointestinal stromal tumours | 3 | 1.23 | 0.23 | 3.63 | 1 | 5.34 | 0.00 | 30.60 |
CI=confidence interval, O, observed cases. Bold type: 95%CI does not include 1.00; underline type, 99%CI does not include 1.00.