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Table 1 Baseline characteristics of patients in the study groups

From: Prognostic impact of presumed breast or ovarian cancer among patients with unfavorable-subset cancer of unknown primary site

  P-CUP U-CUP  
Characteristics Number   p-value
Age, years, median (range) 62 (49–78) 60 (23–79)  
  < 65 years 10 34 0.21
  > 65 years 12 80  
Sex
 Male 2 60 < 0.001
 Female 20 54  
Performance status
 0–1 22 99 0.60
 2–4 0 7  
 Unknown 0 8  
Site of metastasis
 Visceral organ 4 36 0.31
  Lung 2 22  
  Liver 2 20  
  Brain 0 2  
  Other organ 0 7  
 Bone 5 25  
 Lymph node (LN)    
  Superficial LN 14 54  
  Deep LN 11 67  
Histology
 Adenocarcinoma 20 56 < 0.001
 Non-adenocarcinoma 2 58  
  Undifferentiated carcinoma 2 33  
  Malignant neoplasm 0 9  
  Squamous cell carcinoma 0 16  
  1. Data are presented as n (number), unless otherwise indicated
  2. P-CUP CUP with a putative primary site, U-CUP patients with unfavorable-subset CUP