Oral contraceptives and colorectal cancer risk: a meta-analysis
2001

Oral Contraceptives and Colorectal Cancer Risk

Sample size: 12 publication Evidence: moderate

Author Information

Author(s): Fernandez E, Vecchia C La, Balducci A, Chatenoud L, Franceschi S, Negri E

Primary Institution: Institut Català d'Oncologia

Hypothesis

Is there an association between the use of oral contraceptives and the risk of colorectal cancer?

Conclusion

The study found that the use of oral contraceptives is associated with a reduced risk of colorectal cancer.

Supporting Evidence

  • The pooled relative risk of colorectal cancer for ever OC use was 0.82.
  • The pooled estimate from 8 case-control studies was 0.81.
  • The pooled estimate from 4 cohort studies was 0.84.
  • There was no apparent heterogeneity in the results.

Takeaway

Using birth control pills might help lower the chances of getting colon cancer.

Methodology

This meta-analysis included epidemiological studies published in English that provided quantitative information on oral contraceptive use.

Potential Biases

There may be publication bias as only studies published in English were included.

Limitations

The study only included published studies and may not represent all available data.

Participant Demographics

The studies included women who used oral contraceptives.

Statistical Information

Confidence Interval

95% CI: 0.69–0.94

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1054/bjoc.2000.1622

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