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Table 3 Characteristic differences between groups with/without chemotherapy

From: Evaluation of prognostic factors and the role of chemotherapy in unfavorable carcinoma of unknown primary site: a 10-year cohort study

Variables Chemotherapy P
  Yes (n = 118) No (n = 61)  
Median age ± SD (years) 65.62 ± 14.95 74.39 ± 10.77 < .001
Gender    .603
   Male 86 42  
   Female 32 19  
Albumin (g/dl) 3.71 ± 0.56 3.41 ± 0.66 .002
   Corrected Ca level (mg/dl) 9.24 ± 0.57 9.35 ± 1.09 .388
   Lactate dehydrogenase (U/L) 345.1 ± 300.2 574.4 ± 863.3 .01
Performance status    < .001
   0 14 5  
   1 57 10  
   2 33 11  
   3 10 17  
   4 4 18  
Histology    .390
   Carcinoma, unclassifiable 50 33  
   Adenocarcinoma 48 23  
   Squamous cell carcinoma 4 2  
   Neuroendocarcinoma 10 2  
   Others 6 1  
Histology grade    .151
   Poorly differentiated or undifferentiated 24 7  
   Others 94 54  
No. of metastatic organs    1.00
   1 26 14  
   ≥ 2 92 47