Body mass, diabetes and smoking, and endometrial cancer risk: a follow-up study
2008

Body Mass, Diabetes, and Smoking Affect Endometrial Cancer Risk

Sample size: 36761 publication Evidence: high

Author Information

Author(s): Lindemann K, Vatten L J, Ellstrøm-Engh M, Eskild A

Primary Institution: Akershus University Hospital

Hypothesis

How do body mass index, diabetes, and smoking influence the risk of endometrial cancer?

Conclusion

The study found a strong positive association between body mass index and endometrial cancer risk, with higher risks for women with diabetes.

Supporting Evidence

  • Women with a BMI of 35-39 kg/m² had a 4.28 times higher risk of endometrial cancer compared to those with a BMI of 20-24 kg/m².
  • Women with diabetes had a three-fold higher risk of endometrial cancer compared to those without diabetes.
  • Current smokers had a reduced risk of endometrial cancer compared to never smokers.

Takeaway

If women gain weight or have diabetes, they are more likely to get a type of cancer called endometrial cancer, which affects the lining of the uterus.

Methodology

The study followed 36,761 Norwegian women over 15.7 years, analyzing the relationship between BMI, diabetes, and smoking with endometrial cancer risk.

Potential Biases

Potential bias due to lack of information on hysterectomy rates and reproductive health factors.

Limitations

The study did not control for reproductive factors such as parity and hormone replacement therapy.

Participant Demographics

The study included Norwegian women aged 20 years and older, with a mean age of 49 at baseline.

Statistical Information

P-Value

p<0.001

Confidence Interval

95% CI: 0.19–1.47 for BMI<20 kg/m²; 95% CI: 3.08–13.16 for BMI≥40 kg/m²

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1038/sj.bjc.6604313

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