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Excess mortality from breast cancer 20 years after diagnosis when life expectancy is normal.

Authors
  • Louwman, W J
  • Klokman, W J
  • Coebergh, J W
Type
Published Article
Journal
British journal of cancer
Publication Date
Mar 02, 2001
Volume
84
Issue
5
Pages
700–703
Identifiers
PMID: 11237394
Source
Medline
License
Unknown

Abstract

In a population-based study, causes of death were traced of 418 deceased breast cancer patients diagnosed in 1960-1979 who survived at least 10 years after diagnosis. The pattern of causes of death in these patients was compared with the general female population using standardized mortality ratios (SMRs). Of 418 patients surviving at least 10 years, 196 (47%) died from breast cancer and 50 (12%) died from another cancer. The SMR for breast cancer was 15.8 (95% CI: 13.1-18.8) 10-14 years after diagnosis; it was still 4.7 (95% CI: 2.6-7.8) after 20 years. Overall mortality was higher than expected 10-14 years after diagnosis (SMR: 1.3; 95% CI: 1.1-1.5), but lower after more than 20 years (SMR: 0.6; 95% CI: 0.4-0.7). Despite a normal (or even improved) life expectancy for breast cancer patients 20 years after diagnosis the risk of dying from this disease remained elevated.

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