Sensitivity analyses adjusting for time between dementia diagnosis or mean age at dementia onset and blood sample (for individuals with or without a dementia diagnosis, respectively) were consistent with the main analyses, with P-values as follows: BIN1: 0.07; HLA-DRB5: 0.01; SORL1: 0.07; SLC24A4: 0.02; ABCA7: 0.24. Here, SORL1 is linked to dementia.