marginally significantp = 0.07
When the two PRSs were conditioned on each other (Model 3), the association with a woman's PRS remained unchanged, and the association with her sister's PRS attenuated 71% ( p = 10 −16 ) to be at best marginally significant (OPERA = 1.08, 95% CI: 0.99, 1.17; p = 0.07).