title: Positive reactions for both Cyfra21-1 and CA125 indicate worst prognosis in non-small cell lung cancer.
abstract: We examined four tumour markers [carcinoembryonic antigen (CEA), squamous cell carcinoma antigen (SCC), cancer antigen 125 (CA125) and cytokeratin 19 fragment (Cyfra21-1)] in 584 non-small cell lung cancer (NSCLC) patients.
  
  
  RESULTS
  After confirmation of a significant correlation between their serum levels and clinical stages, multivariate analysis showed that Cyfra21-1 and CA125 pointed to a negative prognosis; the respective hazard ratios were 2.585 (p = 0.0008) and 2.139 (p = 0.0020) in 121 inoperable adenocarcinoma patients and 2.329 (p = 0.0004) and 1.61 (p = 0.00370) in 205 inoperable NSCLC patients. Also, patients giving positive reactions for both Cyfra21-1 and CA125 had the worst prognoses, with hazard ratios of 6.546 (p < 0.0001) in inoperable adenocarcinoma patients and 4.275 (p < 0.0001) in inoperable NSCLC patients.
  
  
  CONCLUSIONS
  Cyfra21-1 or CA125 tend to imply a negative prognosis. Cyfra21-1 and CA125 together imply the worst prognosis.
authors.affiliation: Division of Thoracic Diseases, Chiba Cancer Center, 666-2 Nitona-cho, Chuoh-ku, Chiba 260-8717, Japan. sando@chiba-cc.pref.chiba.jp
authors.forename: Soichiro
authors.initials: S
authors.lastname: Ando
authors.forename: Hideki
authors.initials: H
authors.lastname: Kimura
authors.forename: Naomichi
authors.initials: N
authors.lastname: Iwai
authors.forename: Naotaka
authors.initials: N
authors.lastname: Yamamoto
authors.forename: Tomohiko
authors.initials: T
authors.lastname: Iida
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000951:Antigens, Neoplasm / Q000097:blood*; D014408:Biomarkers, Tumor / Q000097:blood*; D018394:CA-125 Antigen / Q000097:blood*; D002272:Carcinoembryonic Antigen / Q000097:blood; D002289:Carcinoma, Non-Small-Cell Lung / Q000097:blood* / Q000473:pathology*; D005260:Female; D006801:Humans; D053539:Keratin-19; D007633:Keratins; D008175:Lung Neoplasms / Q000097:blood* / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D012189:Retrospective Studies; D015843:Serpins
chemical_list: D000951:Antigens, Neoplasm; D014408:Biomarkers, Tumor; D018394:CA-125 Antigen; D002272:Carcinoembryonic Antigen; D053539:Keratin-19; D015843:Serpins; C102012:antigen CYFRA21.1; C051072:squamous cell carcinoma-related antigen; D007633:Keratins