Skip to Main Content
Table 2.

SIR for cervical cancer in full and half-siblings according to the Family-Cancer Database

Sibling typeInvasive only
Invasive + in situ
Invasive + in situ (adjusted)*
ObservedSIR (95% CI)ObservedSIR (95% CI)ObservedSIR (95% CI)
Full sibling 34 1.92 (1.33-2.68) 8,069 1.82 (1.78-1.86) 8,069 1.84 (1.81-1.88) 
Paternal half-sibling 1.38 (0.13-5.07) 734 1.56 (1.45-1.67) 734 1.27 (1.18-1.36) 
Maternal half-sibling  677 1.79 (1.67-1.93) 677 1.40 (1.30-1.51) 
Any half-sibling 0.75 (0.07-2.77) 1,411 1.64 (1.56-1.72) 1,411 1.31 (1.24-1.37) 
Sibling typeInvasive only
Invasive + in situ
Invasive + in situ (adjusted)*
ObservedSIR (95% CI)ObservedSIR (95% CI)ObservedSIR (95% CI)
Full sibling 34 1.92 (1.33-2.68) 8,069 1.82 (1.78-1.86) 8,069 1.84 (1.81-1.88) 
Paternal half-sibling 1.38 (0.13-5.07) 734 1.56 (1.45-1.67) 734 1.27 (1.18-1.36) 
Maternal half-sibling  677 1.79 (1.67-1.93) 677 1.40 (1.30-1.51) 
Any half-sibling 0.75 (0.07-2.77) 1,411 1.64 (1.56-1.72) 1,411 1.31 (1.24-1.37) 

NOTE: Boldfaced, 95% CI and 99% CI do not include 1.00.

*

Adjusted for the number of parents with whom parents had children.

Close Modal

or Create an Account

Close Modal
Close Modal