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Table 1 Clinical and treatment parameters of the study population stratified by treatment cohort.

From: cExternal beam radiation results in minimal changes in post void residual urine volumes during the treatment of clinically localized prostate cancer

Continuous Variables Prostate only (n = 66) Pelvis (n = 59)   All Patients (n = 125)
   Mean ± SD Median Mean ± SD Median p* Mean ± SD Median
Age at treatment (years)   73.9 ± 7.8 75.5 73.9 ± 8.3 76.3 0.971 73.9 ± 8.0 75.8
Pre-treatment IPSS   10.9 ± 7.0 10.0 11.8 ± 8.3 11.5 0.526 11.3 ± 7.6 10.0
Pre-treatment PSA (ng/mL)   7.7 ± 5.3 6.5 29.6 ± 68.4 10.3 0.011 18.0 ± 48.0 7.3
Gleason Score   6.5 ± 0.7 6. 7.8 ± 1.2 8.0 < 0.001 7.1 ± 1.2 7.0
% positive biopsies   29.0 ± 23.7 18.5 62.3 ± 32.8 62.5 < 0.001 44.2 ± 32.6 33.3
Prostate volume (cm3)   54.8 ± 33.8 47.3 51.6 ± 33.2 42.0 0.597 53.3 ± 33.5 46.5
Post void residual (cc)   57.3 ± 67.0 30.0 58.0 ± 88.0 27.0 0.961 57.6 ± 77.3 28.0
BMI   27.8 ± 3.9 27.4 29.2 ± 5.0 28.5 0.950 28.4 ± 4.4 28.2
Categorical Variables Count (%)   Count (%)   p Count (%)  
Stage (median) T1b-T2b 65 (98.5)   46 (78.0)   < 0.001 111 (88.8)  
  ≥ T2c 1 (1.5)   13 (22.0)    14 (11.2)  
ADT none 55 (83.3)   19 (32.2)   < 0.001 74 (59.2)  
  ≤ 6 months 7 (10.6)   2 (3.4)    9 (7.2)  
  > 6 months 4 (6.1)   38 (64.4)    42 (33.6)  
Diabetes   11 (16.9)   14 (23.7)   0.236 25 (20.0)  
Hypertension   43 (65.2)   39 (66.1)   0.531 82 (65.6)  
Alpha blocker   53 (80.3)   43 (72.9)   0.221 96 (76.8)  
Perineural invasion   13 (19.7)   28 (47.5)   0.001 41 (32.8)  
  1. * p values calculated by one-way ANOVA
  2. p values determined by 2-sided Fisher's Exact Test