In L.A. County, Beverly Hills residents used 286 gallons per person daily, while Compton residents used 65. In posh parts of northern San Diego County, residents on average used more than 580 gallons of water a day in September.he heaviest water users, the data showed, used more than 10 times as much as those who used the least. Statewide, residents in some water districts used an average of more than 500 gallons per capita a day, while others used as little as 46 gallons.
PSA doubling time in this group of patients does not play a primary role. Q. Are you suggesting that the standard definition most people use, based on two or three data points, is probably not reliable?
Between these two groups is the diagnostic gray zone of the PSA value, 4.0 to 10.0 ng/mL, for which a positive biopsy of cancer is problematic. In this range, nearly 25% of men will have prostate cancer, and 75% will have benign prostatic enlargement.irst, age-specific reference ranges could improve the sensitivity of PSA by detecting curable, organ-confined tumors in younger men when the threshold of 4.0 ng/mL is lowered. Second, age-specific reference ranges could improve the specificity of the PSA test by raising the PSA threshold for normal among older men.