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Table 1 Patient characteristics prior matching

From: Stereotactic body radiation therapy for prostate cancer: a study comparing 3-year genitourinary toxicity between CyberKnife and volumetric-modulated arc therapy by propensity score analysis

Parameter

CyberKnife (n = 104)

VMAT (n = 38)

p Value

Age (years)

68.9 ± 7.3

72.5 ± 6.1

0.0069

Risk group

0.72

Low

10 (10%)

4 (11%)

 

Intermediate

60 (57%)

19 (50%)

 

High

34 (33%)

15 (40%)

 

Neoadjuvant ADT

95 (91%)

34 (90%)

0.75

Duration of neoadjuvant ADT (months)

8.3 ± 11.1

6.3 ± 0.9

0.29

Comorbidity

 

Antithrombotic therapy

13 (13%)

6 (16%)

0.59

Diabetes

14 (14%)

6 (16%)

0.79

Previous TURP

2 (2%)

1 (3%)

0.99

Medication to improve dysuria at baseline

17 (16.3%)

7 (18.4%)

0.8

Pre-treatment IPSS

0.96

Mild (0–7)

33 (32%)

13 (34%)

 

Moderate (8–19)

59 (57%)

21 (55%)

 

Severe (20–35)

11 (11%)

4 (11%)

 

Prostate volume (cc)

25.9 ± 9.6

26.0 ± 15.3

0.97

  1. Data are presented as number (%) or mean ± SD
  2. VMAT volumetric modulated arc therapy; ADT androgen deprivation therapy; TURP transurethral resection of the prostate; IPSS International Prostate Symptom Score