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Cancer mortality trends in Canada: breast cancer, 1925-1982.
Cancer Detect Prev. 1988; 11(3-6):251-7.CD

Abstract

Breast cancer is the number one cause of death in Canadian women aged 20-74 years (for all 5-year age groups) and the second leading cause for those aged 75 years and over. To assess the long-term mortality of this disease, we collected and analyzed data from 1925 to 1982. A 3-year base period was used to obtain person-years exposure using Newton-Cotes' method. All rates were standardized to the 1956 Canadian population for age and sex using the direct method. Standard errors of age-standardized death rates (ASDR) were computed using Chiang's method. Mortality from breast cancer has been quite stable during the study period (at about 23.7 deaths/100,000 population). The lowest ASDR occurred in 1926 (at 17.5 deaths/100,000 population); the highest occurred in 1946 (when it reached 26.6 deaths/100,000 population). During 1951-1981, the ASDR fluctuated between 22.8 and 24.0 deaths/100,000 population. Examination of age sex-specific rates revealed a steady trend for 25-44-year-old females and a rise in mortality in the older age groups. It is suggested that part of this rise may be associated with changes in environment, life-style, and therapy.

Authors+Show Affiliations

Department of Preventive Medicine and Biostatistics, Faculty of Medicine, University of Toronto, Ontario, Canada.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

3390849

Citation

Vakil, D V., and A Ayiomamitis. "Cancer Mortality Trends in Canada: Breast Cancer, 1925-1982." Cancer Detection and Prevention, vol. 11, no. 3-6, 1988, pp. 251-7.
Vakil DV, Ayiomamitis A. Cancer mortality trends in Canada: breast cancer, 1925-1982. Cancer Detect Prev. 1988;11(3-6):251-7.
Vakil, D. V., & Ayiomamitis, A. (1988). Cancer mortality trends in Canada: breast cancer, 1925-1982. Cancer Detection and Prevention, 11(3-6), 251-7.
Vakil DV, Ayiomamitis A. Cancer Mortality Trends in Canada: Breast Cancer, 1925-1982. Cancer Detect Prev. 1988;11(3-6):251-7. PubMed PMID: 3390849.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cancer mortality trends in Canada: breast cancer, 1925-1982. AU - Vakil,D V, AU - Ayiomamitis,A, PY - 1988/1/1/pubmed PY - 1988/1/1/medline PY - 1988/1/1/entrez SP - 251 EP - 7 JF - Cancer detection and prevention JO - Cancer Detect. Prev. VL - 11 IS - 3-6 N2 - Breast cancer is the number one cause of death in Canadian women aged 20-74 years (for all 5-year age groups) and the second leading cause for those aged 75 years and over. To assess the long-term mortality of this disease, we collected and analyzed data from 1925 to 1982. A 3-year base period was used to obtain person-years exposure using Newton-Cotes' method. All rates were standardized to the 1956 Canadian population for age and sex using the direct method. Standard errors of age-standardized death rates (ASDR) were computed using Chiang's method. Mortality from breast cancer has been quite stable during the study period (at about 23.7 deaths/100,000 population). The lowest ASDR occurred in 1926 (at 17.5 deaths/100,000 population); the highest occurred in 1946 (when it reached 26.6 deaths/100,000 population). During 1951-1981, the ASDR fluctuated between 22.8 and 24.0 deaths/100,000 population. Examination of age sex-specific rates revealed a steady trend for 25-44-year-old females and a rise in mortality in the older age groups. It is suggested that part of this rise may be associated with changes in environment, life-style, and therapy. SN - 0361-090X UR - https://www.unboundmedicine.com/medline/citation/3390849/Cancer_mortality_trends_in_Canada:_breast_cancer_1925_1982_ L2 - http://www.diseaseinfosearch.org/result/960 DB - PRIME DP - Unbound Medicine ER -
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