Outcome after extended follow-up in a prospective study of operable breast cancer: key factors and a prognostic index
2002

Prognostic Factors in Operable Breast Cancer

Sample size: 214 publication 10 minutes Evidence: moderate

Author Information

Author(s): Hawkins R A, Tesdale A L, Prescott R J, Forster T, McIntyre M A, Baker P, Jack W J L, Chetty U, Dixon J M, Killen M E, Hulme M J, Miller W R

Primary Institution: University Department of Surgery, Royal Infirmary NHS Trust, Edinburgh

Hypothesis

What are the key prognostic factors influencing outcomes in operable breast cancer over an extended follow-up period?

Conclusion

The study found that the number of positive nodes, age, tumor size, steroid receptor activity, and tumor grade significantly influence prognosis in operable breast cancer.

Supporting Evidence

  • 77 recurrences and 77 deaths were recorded during the follow-up period.
  • The most significant factors influencing patient outcomes were the number of positive nodes, steroid receptors, tumor size, and age.
  • The study established a prognostic index that combines these key factors for better prediction of outcomes.

Takeaway

Doctors can better predict how well a patient with breast cancer will do by looking at things like how many lymph nodes are affected and the patient's age.

Methodology

The study analyzed data from 214 women with operable breast cancer, focusing on various clinical, pathological, and biochemical factors over a median follow-up of 6.6 years.

Potential Biases

Potential biases may arise from the exclusion of patients who did not meet the study criteria or from variations in treatment received.

Limitations

The study may not fully represent all patients with breast cancer as it included only those with sufficient tumor tissue for analysis.

Participant Demographics

The median age of participants was 55 years, and all were women with operable breast cancer.

Statistical Information

P-Value

P=0.001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1038/sj.bjc.6600335

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