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Table 1 Patients’ baseline characteristics, N = 703

From: When to perform bone scintigraphy in patients with newly diagnosed prostate cancer? a retrospective study

  All Patients without bone metastasis (%) with bone metastasis (%) p value
Age, yr
  ≤ 60 87 73 (12.2) 14 (13.2) 0.96
 60-70 255 217 (36.3) 38 (35.8)  
  ≥ 70 361 307 (51.4) 54 (50.9)  
 mean 69.7 69.9 68.7 0.13
PSA, ng/ml
  ≤ 10 150 144 (24.1) 6 (5.7) <0.05
 10-20 184 175 (29.3) 9 (8.5)  
  ≥ 20 369 278 (46.6) 91 (85.8)  
 mean 110.4 48.5 361.7 <0.05
GS
  < 7 132 125 (20.9) 7 (6.6) <0.05
  = 7 306 281 (47.1) 25 (23.6)  
  > 7 265 191 (32.0) 74 (69.8)  
 mean 7.5 7.3 7.9 <0.05