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. Author manuscript; available in PMC: 2011 Jul 21.
Published in final edited form as: J Urol. 2011 Mar 17;185(5):1650–1655. doi: 10.1016/j.juro.2010.12.032

TABLE 3.

Risk Assessment Probability of PCa using phi

phi
Range
Probability of Cancer
(95% Confidence Interval)
Relative Risk
(95% Confidence Interval)
Percent of
patients in
phi range
0–24.9 11.0% (6.5% – 15.8%) 1.0 24.9%
25.0–34.9 18.1% (13.7% – 22.6%) 1.6 (1.0 – 3.1) 32.8%
35.0–54.9 32.7% (27.3% – 38.0%) 3.0 (1.9 – 5.3) 29.5%
55.0+ 52.1% (42.0% – 62.1%) 4.7 (3.0 – 8.3) 12.8%