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Table 1 Patient characteristics of ovarian cancer patients whose tissue samples were stained by immunohistochemistry for hCG expression or serum samples were analyzed for hCG concentration

From: Human chorionic gonadotropin and its relation to grade, stage and patient survival in ovarian cancer

   Tissue samples Serum samples
Ovarian cancer patients (n) 156 40
Age at primary diagnosis (a) 58 (range 18-88) 62 (range 21-80)
Histology (%) serous 70.5 81.0
  mucinous 13.5 4.8
  endometrioid 7.7 14.3
  clear cell 8.3 0.0
Tumor grading (%) low grade 27.2 4.2
  intermediate 36.5 54.2
  high grade 36.3 51.7
Tumor stage (FIGO) (%) I 22.6 13.9
  II 5.8 13.9
  III 70.3 55.6
  IV 1.3 16.7
Gonadotropin receptor expression (%) LH-R positive 64.3 -
  FSH-R positive 63.1 -