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Table 1 Characteristics of patients before and after propensity score matching

From: Comparison of sexual function after robot-assisted radical prostatectomy and carbon-ion radiotherapy for Japanese prostate cancer patients using propensity score matching

Ā Ā 

Pre PSM

Post PSM

Ā Ā 

RARP, Pre PSM

Nā€‰=ā€‰127

CIRT, Pre PSM

Nā€‰=ā€‰190

p-Value

RARP, Post PSM

Nā€‰=ā€‰101

CIRT, Post PSM

Nā€‰=ā€‰101

p-Value

Age (meanā€‰Ā±ā€‰S.D.)

Ā 

64.9ā€‰Ā±ā€‰6.51

65ā€‰Ā±ā€‰6.61

pā€‰=ā€‰0.589

65.1ā€‰Ā±ā€‰5.87

65.3ā€‰Ā±ā€‰6.47

pā€‰=ā€‰0.800

PSA (meanā€‰Ā±ā€‰S.D.)

Ā 

7.24ā€‰Ā±ā€‰3.40

5.71ā€‰Ā±ā€‰1.87

pā€‰<ā€‰0.001

6.34ā€‰Ā±ā€‰2.46

6.31ā€‰Ā±ā€‰2.07

pā€‰=ā€‰0.939

EPIC Sexual Function

summary score (meanā€‰Ā±ā€‰S.D.)

Ā 

46.7ā€‰Ā±ā€‰15.2

46.9ā€‰Ā±ā€‰15.6

pā€‰=ā€‰0.898

46.4ā€‰Ā±ā€‰15.6

48.2ā€‰Ā±ā€‰16.2

pā€‰=ā€‰0.438

T stage; n, (%)

T1

16 (12.6%)

76 (40.0%)

pā€‰<ā€‰0.001

16 (15.8)

17 (16.8)

pā€‰=ā€‰0.982

Ā 

T2

103 (81.0%)

113 (59.5%)

84 (83.2)

83 (82.2)

Ā 

T3

8 (6.3%)

1 (0.5%)

1 (1.0)

1 (1.0)

Gleason Score; n, (%)

6

8 (6.3%)

49 (25.8%)

pā€‰<ā€‰0.001

7 (6.9)

28 (27.7)

pā€‰<ā€‰0.001

Ā 

7

96 (75.6%)

140 (73.7%)

78 (77.2)

72 (71.3)

Ā 

8

17 (13.4%)

1 (0.5%)

12 (11.9)

1 (1.0)

Ā 

9

6 (4.7%)

0 (0%)

4 (4.0)

0 (0)

Nerve sparing; n, (%)

(+)

99 (78.0%)

NA

NA

76 (75.2%)

NA

NA

Ā 

(-)

28 (22.0%)

NA

25 (24.8%)

NA

  1. RARP; robotic-assisted radical prostatectomy, CIRT; carbon ion radiotherapy, PSM; propensity score matching, PSA; prostate specific antigen, EPIC; expanded prostate cancer index composite, NA; not applicable