Contaminación de antígeno específico-prostático a largo plazo en la rama española del Estudio Aleatorizado Europeo de Screening del Cáncer de Próstata (ERSPC)

Although the cumulative PSA contamination was pronounced in the 2 study arms, the rate of prostate biopsies was low in the control arm. We therefore believe that the effect of PSA contamination on the study's statistical power should be limited.