Table 2.

Preliminary outcomes of active surveillance

Author	Eligibility criteria	Criteria for intervention	Median age	Median follow-up	DSS
Dall-Era, et al13	T1–1, GS ≤ 6, PSA <10 ng/mL % positive cores <33%	GS ≥ 7, increase PSA or tumor volume	63 yrs	43 mos	100%
Klotz14	T1c–T2a, GS ≤ 6, PSA ≤ 10 ng/mL	PSADT ≤ 3yrs, PSA > 10 ng/mL, PSAV 2 ng/mL/yr	70 yrs	72 mos	99%

Abbreviations: PSA, prostate specific antigen; GS, gleason score; PSADT, PSA doubling time; PSAV, PSA velocity; DSS, disease specific survival.