Association between family history of cancer and lung cancer risk among Japanese men and women

Kaoru Yoshida, Yoko Takizawa, Yoshikazu Nishino, Satomi Takahashi, Seiki Kanemura, Junko Omori, Hajime Kurosawa, Makoto Maemondo, Yuko Minami

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Although cigarette smoking is a major risk factor for lung cancer, genetic susceptibility may also affect lung cancer risk. To explore the role of genetic risk, this case-control study investigated the association between family history of cancer at several sites and lung cancer risk. A total of 1,733 lung cancer cases and 6,643 controls were selected from patients aged 30 years and over admitted to a single hospital in Japan between 1997 and 2009. Information on family history of cancer was collected using a self-administered questionnaire and odds ratios (ORs) were estimated by unconditional logistic regression. Family history of lung cancer in first-degree relatives was associated with an increased risk of lung cancer among both sexes. According to histology and type of relatives, a parental history of lung cancer was significantly associated with an increased risk of female adenocarcinoma (OR = 1.72). Stratification by smoking status revealed that this significant positive association in women was limited to ever-smokers (OR = 4.13). In men, a history of lung cancer in siblings was significantly associated with an increased risk of small cell carcinoma (OR = 2.28) and adenocarcinoma (OR = 2.25). Otherwise, positive associations between history of breast (OR = 1.99) and total (OR = 1.71) cancers in siblings and the risk of male adenocarcinoma were observed. These results suggest that inherited genetic susceptibility may contribute to the development of lung cancer. In men, shared exposure to environmental factors among siblings may also be responsible for the increase in lung cancer risk.

Original languageEnglish
Pages (from-to)99-110
Number of pages12
JournalTohoku Journal of Experimental Medicine
Volume247
Issue number2
DOIs
Publication statusPublished - 2019 Feb

Keywords

  • Adenocarcinoma
  • Case-control study
  • Family history
  • Lung cancer
  • Smoking

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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