Interaction between polygenic risk score and reproductive factors in relation to lung cancer risk among Singaporean Chinese women

  • 0Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore.

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Summary

This summary is machine-generated.

Women who had hysterectomy or oophorectomy showed increased lung cancer risk. Genetic variants did not significantly modify this association, suggesting reproductive surgery history is a key risk factor for lung cancer.

Area Of Science

  • Reproductive health and oncology
  • Cancer epidemiology
  • Genetics and cancer risk

Background

  • Reproductive factors influence female hormone levels and may affect lung cancer risk.
  • The role of genetic variants in modifying this association is not well understood.

Purpose Of The Study

  • To investigate the association between reproductive factors and lung cancer risk in women.
  • To evaluate whether genetic variants modify the relationship between reproductive factors and lung cancer risk.

Main Methods

  • An age-matched case-control study involving 2910 female participants (1455 cases, 1455 controls).
  • Logistic regression was used to estimate odds ratios (ORs) for reproductive factors and lung cancer.
  • A polygenic risk score (PRS) was calculated to assess gene-environment interactions.

Main Results

  • Hysterectomy (OR=1.41) and oophorectomy (OR=1.52) were associated with increased lung cancer risk.
  • A lung cancer polygenic risk score (PRS) showed a linear association with lung cancer risk (Ptrend < 0.001).
  • A borderline non-significant interaction was found between hormone use and PRS (Pinteraction-FDR = 0.05).

Conclusions

  • History of hysterectomy or oophorectomy increases lung cancer risk, necessitating targeted prevention.
  • No significant effect modification by the lung cancer PRS was observed for reproductive factors.
  • Larger prospective studies are needed to confirm these findings.

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