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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: Urology. 2017 Jul 19;108:129–134. doi: 10.1016/j.urology.2017.07.009

Table 2:

Risk of biochemical recurrence after radical prostatectomy by PSA nadir level and time to PSA nadir

Variables* BCR/Total N HR 95% Cl P
Undetectable PSA nadir
 TTN 3–6 months 28/130 ref - -
 TTN 1–2.99 months 317/1537 0.86 0.58–1.28 0.462
Detectable PSA nadir
 TTN 3–6 months 36/86 1.81 1.08–3.03 0.024
 TTN 1–2.99 months 110/186 3.75 2.44–5.74 <0.001^
*

Analysis adjusted for race, body-mass index, age, year, VA medical center, preoperative PSA, pathological Gleason score, surgical margins, seminal vesicle invasion and extracapsular extension

^

Among those with a detectable PSA nadir, those with TTN 1–2.99 months have significantly higher risk of recurrence compared to those with TTN 3–6 months (p<0.001)

HR: Hazard ratio

CI: Confidence interval

TTN: time to nadir