scholarly journals Breast cancer mortality after screening mammography in British Columbia women

2006 ◽  
Vol 120 (5) ◽  
pp. 1076-1080 ◽  
Author(s):  
Andrew Coldman ◽  
Norm Phillips ◽  
Linda Warren ◽  
Lisa Kan
Keyword(s):  
Breast Cancer ◽  
British Columbia ◽  
Cancer Mortality ◽  
Breast Cancer Mortality ◽  
Screening Mammography

scholarly journals Impact of changing from annual to biennial mammographic screening on breast cancer outcomes in women aged 50–79 in British Columbia

2008 ◽  
Vol 15 (4) ◽  
pp. 182-187 ◽  
Author(s):  
Andrew J Coldman ◽  
Norm Phillips ◽  
Ivo A Olivotto ◽  
Paula Gordon ◽  
Linda Warren ◽  
...  
Keyword(s):  
Breast Cancer ◽  
British Columbia ◽  
Cancer Mortality ◽  
Breast Cancer Mortality ◽  
Mortality Rates ◽  
Screening Mammography ◽  
Axillary Node ◽  
Age Group ◽  
Cancer Outcomes ◽  
Breast Cancer Outcomes

Objectives The objective of this study was to compare breast cancer outcomes among women subject to different policies on mammography screening frequency. Setting Data were obtained for women participating in the Screening Mammography Programme of British Columbia (SMPBC) for 1988–2005. The SMPBC changed its policy for women aged 50–79 years from annual to biennial mammography in 1997, but retained an annual recommendation for women aged 40–49 years. Methods Breast cancer outcomes were compared for women participating in the programme before and after 1997 for two groups: ages 40–49 and 50–79 years. Results There were data on 658,151 women. Comparing pre-1997 and post-1997, the median interscreen interval increased by 11.1 months in women 50–79 but by only 0.3 months in women aged 40–49. Excluding those detected at initial screen, 6291 breast cancers were identified. Comparing pre-1997 and post-1997: the relative rates (RR) of screen detected cancer increased in women aged 40–49 (RR = 1.32) and the rate of invasive cancers ≥20 mm at diagnosis decreased (RR = 0.83); the rate of cancers with axillary node involvement increased in women aged 50–79 (RR = 1.23). Cancer survival improved after 1997 for women diagnosed at ages 40–49 (hazard ratio = 0.62), but was unchanged for women aged 50–79. Breast cancer mortality rates did not change between the periods in either age group. Conclusion The proximal cancer outcomes considered (staging and survival) improved in women aged 40–49 but this was offset in women aged 50–79 associated with the change in screen frequency. These changes did not result in alterations in breast cancer mortality rates in either age group.

Continuation of Annual Screening Mammography and Breast Cancer Mortality in Women Older Than 70 Years

2020 ◽  
Vol 172 (6) ◽  
pp. 381 ◽  
Author(s):  
Xabier García-Albéniz ◽  
Miguel A. Hernán ◽  
Roger W. Logan ◽  
Mary Price ◽  
Katrina Armstrong ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Mortality ◽  
Breast Cancer Mortality ◽  
Screening Mammography ◽  
Annual Screening

scholarly journals Service screening mammography reduces breast cancer mortality among elderly women in Turku

2006 ◽  
Vol 13 (1) ◽  
pp. 34-40 ◽  
Author(s):  
I Parvinen ◽  
H Helenius ◽  
L Pylkkänen ◽  
A Anttila ◽  
P Immonen-Räihä ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Mortality ◽  
Elderly Women ◽  
Breast Cancer Mortality ◽  
Screening Mammography

scholarly journals Impact of screening mammography on breast cancer mortality

2015 ◽  
Vol 138 (8) ◽  
pp. 2003-2012 ◽  
Author(s):  
Archie Bleyer ◽  
Cornelia Baines ◽  
Anthony B. Miller
Keyword(s):  
Breast Cancer ◽  
Cancer Mortality ◽  
Breast Cancer Mortality ◽  
Screening Mammography

scholarly journals Breast cancer mortality and screening mammography in New Zealand: Incidence-based and aggregate analyses

2018 ◽  
Vol 26 (1) ◽  
pp. 35-43 ◽  
Author(s):  
Richard Taylor ◽  
Marli Gregory ◽  
Kerry Sexton ◽  
Jessica Wharton ◽  
Nisha Sharma ◽  
...  
Keyword(s):  
Breast Cancer ◽  
New Zealand ◽  
Cancer Mortality ◽  
Mammography Screening ◽  
Breast Cancer Mortality ◽  
Primary Treatment ◽  
Screening Mammography ◽  
Randomized Controlled ◽  
Before And After ◽  
Incident Cases

Objective To investigate trends in breast cancer mortality in New Zealand women, to corroborate or negate a causal association with service screening mammography. Method Cumulated mortality rates from breast cancer deaths individually linked to incident cases diagnosed before and after screening commencement were compared, in women aged 50–64 (from 2001) and aged 45–49 and 65–69 (from 2006). Trends and differences in aggregate invasive breast cancer mortality (1975–2013) were assessed in relation to introduction of mammography screening targeting women aged 50–64 and 45–69. Joinpoint analysis was also undertaken. Results The reduction in incidence-based cumulated breast cancer mortality before and after the introduction of screening was −15% (p = 0.006) for women aged 45–69, and 17% (p = 0.005) for those aged 50–64. Aggregate mortality declined by −34% (2005–13 compared with 1992–98) in the age group 50–64, and by –28% among women aged 45–49 and –25% among women aged 65–74. For women aged 50–64 the 2-joinpoint model shows a 1990 turning point, from prior rising mortality to a mean −1.8% decline per annum, coinciding with improvements in primary treatment of breast cancer; and a steepening of the decline (−3.0% p.a.) from the late 1990s, coinciding with the introduction of service mammography screening. Conclusion Breast cancer mortality declines occurring since the advent of screening mammography in New Zealand are consistent with other incidence-based and aggregate studies of screening mammography in populations, individual-based cohort studies, and randomized controlled trials.

Sign in / Sign up

Export Citation Format

Share Document