Risk analysis of colorectal cancer in patients with juvenile polyposis as compared with the general population of the US (The Surveillance, Epidemiology and End Results data)
| Group | Person-years | Numbers of colorectal cancers | RR(observed/expected) | 95% CI | Rate per 100 000(person-years) |
|---|---|---|---|---|---|
| Males | 738.9 | 5 | 30.0 | 9.6 to 68.6 | 676.7 |
| Females | 913.3 | 3 | 43.7 | 8.8 to 125.0 | 328.5 |
| Combined | 1652.2 | 8 | 34.0 | 14.4 to 65.7 | 484.2 |