Risk of pancreatic cancer among unrelated family members and among individuals with a first-degree relative with pancreatic cancer in the familial (FPC) kindreds and sporadic (SPC) kindreds
Family statusa . | No. of individuals . | Person-years of follow-up . | Observed cases . | Expected casesb . | SIRc (95% CI) . |
---|---|---|---|---|---|
FPC Kindreds | 1993 | 5273 | 11 | 1.22 | 9.0 (4.5–16.1) |
SPC Kindreds | 1964 | 5265 | 2 | 1.12 | 1.8 (0.22–6.42) |
Unrelated | 369 | 1073 | 1 | 0.41 | 2.4 (0.06–13.5) |
Family statusa . | No. of individuals . | Person-years of follow-up . | Observed cases . | Expected casesb . | SIRc (95% CI) . |
---|---|---|---|---|---|
FPC Kindreds | 1993 | 5273 | 11 | 1.22 | 9.0 (4.5–16.1) |
SPC Kindreds | 1964 | 5265 | 2 | 1.12 | 1.8 (0.22–6.42) |
Unrelated | 369 | 1073 | 1 | 0.41 | 2.4 (0.06–13.5) |