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Table 1 Baseline characteristics of patients according to presence of IDC-P

From: Retrospective study on the benefit of adjuvant radiotherapy in men with intraductal carcinoma of prostate

 

Patients with IDC-P (n = 73)

Patients without IDC-P (n = 220)

P *

Adjuvant radiotherapy

21 (29%)

27 (12%)

0.002

Mean age at diagnosis (S.D.)

62.1 (6.8)

62.0 (6.8)

0.852

Grade group

 1

16 (22%)

113 (51%)

< 0.001

 2

26 (36%)

82 (37%)

 3

21 (29%)

19 (9%)

 4

2 (3%)

1 (1%)

 5

8 (11%)

5 (2%)

Lymphovascular invasion

19 (26%)

17 (8%)

< 0.001

Extraprostatic extension

42 (58%)

66 (30%)

< 0.001

Seminal vesicle invasion

15 (21%)

14 (6%)

0.001

Positive margins

29 (40%)

51 (23%)

0.010

Mean # of high-risk features (S.D.)

1.32 (1.1)

0.6 (0.9)

< 0.001

Median follow-up (months) (I.Q.R.)

61 (29–101)

112 (70–140)

< 0.001

Centre

 1

19 (26%)

20 (9%)

< 0.001

 2

54 (74%)

200 (91%)

  1. High-risk features: Grade groups 4–5, seminal vesicle invasion, positive margins, extraprostatic extension
  2. S.D Standard deviation, I.Q.R Interquartile range
  3. *Welch’s test for means, Fisher’s exact test for 2 × 2 tests, Pearson’s chi-square for categorical variables with more than 2 categories, Mann-Whitney U for medians
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Radiation Oncology

ISSN: 1748-717X

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