Longitudinal recovery patterns of penile length and the underexplored benefit of long-term phosphodiesterase-5 inhibitor use after radical prostatectomy.

A decreasing trend of PL recovery with respect to age (< 50 vs. 50–60 vs. > 60) and increasing trend of recovery with respect to SHIM groups (1–7: low vs. 8–16: medium vs. > 17: high) were statistically significant (Cochran-Armitage Trend Test Z = − 3.74 and 3.85; p = 0.0002 and 0.0001, respectively).

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