Hazard ratios (HR) and 95% confidence intervals (CI) of prostate cancer mortality for methylation of APC and GSTP1 in the non-neoplastic tissue adjacent to the tumour (NTAT).

aN, number of prostate cancer deaths.bHR, hazard ratio adjusted for age, calendar year at diagnosis, source of tumour tissue.cHR, hazard ratio adjusted for age, calendar year at diagnosis, source of tumour tissue, and methylation in tumour tissue.dHR, hazard ratio adjusted for age, calendar year at diagnosis, source of tumour tissue, methylation in tumour tissue and Gleason score.