Do general practitioners use prostate-specific antigen as a screening test for early prostate cancer?
More than half of the PSA tests ordered during the study period were screening tests. Our method could be used to monitor the impact of guidelines and strategies for reducing PSA screening.
Greater oxidative stress, as indicated by elevated serum protein carbonyl concentrations, was associated with greater risk of death in older women living in the community who were moderately to severely disabled. Prevention of oxidative stress may reduce the risk of mortality.