Breast Cancer Research and Treatment

, Volume 122, Issue 3, pp 867–871

IGFBP3 A-202C polymorphism and breast cancer susceptibility: a meta-analysis involving 33,557 cases and 45,254 controls

  • Li-Xin Qiu
  • Lei Yao
  • Hui Yuan
  • Chen Mao
  • Bo Chen
  • Ping Zhan
  • Kai Xue
  • Jian Zhang
  • Xi-Chun Hu
Epidemiology

Abstract

Published data on the association between insulin-like growth factor binding protein 3 (IGFBP3) A-202C polymorphism and breast cancer risk are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed. Crude ORs with 95% CIs were used to assess the strength of association between them. A total of 27 studies including 33,557 cases and 45,254 controls were involved in this meta-analysis. Overall, significantly elevated breast cancer risk was associated with IGFBP3 C allele when all studies were pooled into the meta-analysis (CC vs. AA: OR = 1.06, 95% CI = 1.02–1.11; dominant model: OR = 1.04, 95% CI = 1.00–1.07). In the subgroup analysis by ethnicity, significantly increased risk was found for Caucasians (AC vs. AA: OR = 1.04, 95% CI = 1.00–1.08; CC vs. AA: OR = 1.05, 95% CI = 1.01–1.10; dominant model: OR = 1.04, 95% CI = 1.00–1.08) and Asians (CC vs. AA: OR = 1.35, 95% CI = 1.02–1.78; recessive model: OR = 1.38, 95% CI = 1.05–1.82). When stratified by study design, statistically significantly elevated risk was found among population-based studies (CC vs. AA: OR = 1.06, 95% CI = 1.01–1.11; dominant model: OR = 1.03, 95% CI = 1.00–1.07). In the subgroup analysis by menopausal status, no statistically significantly increased risk was found among premenopausal or postmenopausal women. In conclusion, this meta-analysis suggests that the IGFBP3 C allele is a low-penetrant risk factor for developing breast cancer.

Keywords

IGFBP3 Polymorphism Breast cancer Susceptibility Meta-analysis 

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Copyright information

© Springer Science+Business Media, LLC. 2010

Authors and Affiliations

  • Li-Xin Qiu
    • 1
    • 2
  • Lei Yao
    • 3
  • Hui Yuan
    • 4
  • Chen Mao
    • 5
  • Bo Chen
    • 6
  • Ping Zhan
    • 7
  • Kai Xue
    • 1
    • 2
  • Jian Zhang
    • 1
    • 2
  • Xi-Chun Hu
    • 1
    • 2
  1. 1.Department of Medical Oncology, Cancer HospitalFudan UniversityShanghaiChina
  2. 2.Department of Oncology, Shanghai Medical CollegeFudan UniversityShanghaiChina
  3. 3.State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life SciencesFudan UniversityShanghaiChina
  4. 4.Department of Epidemiology and Biostatistics, School of Public HealthAnhui Medical UniversityAnhuiChina
  5. 5.Department of Epidemiology, School of Public Health and Tropical MedicineSouthern Medical UniversityGuangzhouChina
  6. 6.Department of Geriatrics, First Affiliated HospitalNanjing Medical UniversityNanjingChina
  7. 7.Department of Respiratory MedicineNanjing Chest HospitalNanjingChina

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