Supplementary Table 1.

Propensity score parameter list

The variables used in calculating the propensity matching	Age, PSA, T stage
Propensity scoring algorithm	Logistic regression model
C-statistical	0.64
Matching method	Greedy matching within specified caliper distances
Distance metric	0.05
Matching ratio	(AS/WW) 1:1 (focal therapy)
Use of replacement	With replacement
Matching sample size	AS/WW (681 cases) vs. focal therapy (681 cases)

AS: active surveillance; WW: watchful waiting; PSA: prostate-specific antigen