A 1-unit increase in the log-transformed genetically elevated CRP level was associated with 80% or more increased risk for ER/PR-positive breast cancer (IVW-HR1st-stage = 1.79, 95% CI: 1.17–2.76; WM-HR2nd-stage = 2.11, 95% CI: 1.00–4.46) (Table 2). Here, CRP is linked to breast cancer.