Kaplan-Meier

Multivariate

Variables

No. pts

5y RFS rate (%)

P-value

P-value

H.R.

95% CL

Age

<70 (yrs.)

122

75

0.508

≥70

102

70

Prostate volume

<25 (mL)

138

72

0.503

≥25

86

75

Risk group

Low

54

87

<0.001

Intermediate

111

78

High

59

51

T-stage

T1

117

81

0.003

0.04

0.59

0.36 - 0.98

T2

107

64

Gleason score

≤6

69

82

0.003

Ref.

≤6

Ref.

3 + 4

79

82

0.109

7

0.092

1.69

0.92 - 3.25

4 + 3

26

58

0.004

≥8

50

55

<0.001

≥8

0.002

3

1.51 - 6.12

Pretreatment PSA

<10 (ng/mL)

154

79

<0.001

0.022

0.56

0.35 - 0.92

≥10

70

58

Nadir PSA

<0.1 (ng/mL)

120

81

<0.001

<0.001

0.26

0.16 - 0.43

≥0.1

104

63

% of positive core

<40

176

74

0.553

≥40

48

67

ADT before HIFU

<3 M

165

74

0.422

≥3 M

59

70

HIFU device

Sonablate 500

59

65

0.049

0.014

1.85

1.14 - 2.97

version 4

165

76