The ABO blood group is an independent prognostic factor in patients with resected non-small cell lung cancer

J Epidemiol. 2015;25(2):110-6. doi: 10.2188/jea.JE20140102. Epub 2014 Dec 6.

Abstract

Background: The ABO blood group is reported to be associated with the incidence and patient survival for several types of malignancies. We conducted a retrospective study to evaluate the prognostic significance of the ABO blood group in patients with resected non-small cell lung cancer (NSCLC).

Methods: A total of 333 patients (218 men and 115 women) with resected NSCLC were included in this study. In addition to age, sex, smoking status, preoperative serum carcinoembryonic antigen (CEA) level, operative procedure, histology of tumors, pathological stage (p-stage), and adjuvant therapy, the association between the ABO blood group and survival was explored.

Results: The 5-year overall and disease-free survival rates were 83.0% and 71.6% for blood group O, 67.2% and 62.3% for blood group A, 68.8% and 68.8% for blood group B and 69.2% and 65.3% for blood group AB, respectively. A multivariate analysis for overall survival showed the ABO blood group (group A vs. group O: HR 2.47, group AB vs. group O: HR 3.62) to be an independent significant prognostic factor, in addition to age, sex, smoking status, p-stage, and serum CEA level. A multivariate analysis for disease-free survival also showed the ABO blood group to be an independent significant prognostic factor.

Conclusions: The ABO blood group is an independent prognostic factor in patients with resected NSCLC. Studies of other larger cohorts are therefore needed to confirm the relationship between the ABO blood group and the prognosis among patients with resected NSCLC.

【背景】: ABO血液型はいくつかのがん腫において、発生頻度や予後との関連が報告されている。この後ろ向き研究の目的は、非小細胞肺癌切除例における予後とABO血液型の関連を検討することである。

【方法】: 本研究の対象は333例(男性218例、女性115例)の非小細胞肺癌切除例で、年齢、性別、喫煙状況、術前血清CEA値、術式、腫瘍の組織型、病理病期、術後補助療法、およびABO血液型と予後との関連を検討した。

【結果】: ABO血液型別の5年全生存率(Overall survival: OS)と5年無再発生存率(Disease free survival: DFS)は、それぞれO型83%、71.6%、A型67.2%、62.3%、B型68.8%、68.8%、AB型69.2%、65.3%であった。OSに対する多変量解析で、年齢、性別、喫煙状況、病理病期、術前血清CEA値と同様にABO血液型は独立した予後因子であった(A型 vs. O型のハザード比:2.47、AB型 vs. O型のハザード比:3.62)。DFSに対する多変量解析においても、ABO血液型は独立した予後因子であった。

【結論】: ABO血液型は非小細胞肺癌切除例における独立した予後因子である。ABO血液型と非小細胞肺癌切除例の予後との関連を検討するために、今後外部コホートや大規模な集団での検討が望まれる。

MeSH terms

  • ABO Blood-Group System*
  • Adult
  • Aged
  • Aged, 80 and over
  • Carcinoma, Non-Small-Cell Lung / blood
  • Carcinoma, Non-Small-Cell Lung / surgery*
  • Disease-Free Survival
  • Female
  • Humans
  • Lung Neoplasms / blood
  • Lung Neoplasms / surgery*
  • Male
  • Middle Aged
  • Neoplasm Recurrence, Local / blood
  • Neoplasm Recurrence, Local / surgery*
  • Prognosis

Substances

  • ABO Blood-Group System