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Can the survival difference between breast cancer patients in Denmark and Sweden 1989 and 1994 be explained by patho-anatomical variables? - A population-based study

Christensen, LH; Engholm, G; Ceberg, J; Hein, S; Perfekt, Roland LU ; Tange, UB; Andersson, M; Mouridsen, HT; Möller, Torgil LU and Storm, HH (2004) In European Journal of Cancer 40(8). p.1233-1243
Abstract
Analyses of data from cancer registries have shown a 10% unit difference in 5-year relative survival between Danish and Swedish patients with breast cancer. This study investigates the effect of age and patho-anatomic variables on this survival difference. Hospital records were collected for women over 40 years of age diagnosed in 1989 or 1994 in east Denmark and south Sweden; patho-anatomical variables and survival were compared between 2289 Danish and 1715 Swedish women. Tumours were smaller, node-negative axillae more frequent and well-differentiated tumours almost 10% more frequent in Sweden. A superior 5-year relative survival in Sweden was found in the 50- to 79-year age group. The adjusted hazard rate ratio between countries was 1.7... (More)
Analyses of data from cancer registries have shown a 10% unit difference in 5-year relative survival between Danish and Swedish patients with breast cancer. This study investigates the effect of age and patho-anatomic variables on this survival difference. Hospital records were collected for women over 40 years of age diagnosed in 1989 or 1994 in east Denmark and south Sweden; patho-anatomical variables and survival were compared between 2289 Danish and 1715 Swedish women. Tumours were smaller, node-negative axillae more frequent and well-differentiated tumours almost 10% more frequent in Sweden. A superior 5-year relative survival in Sweden was found in the 50- to 79-year age group. The adjusted hazard rate ratio between countries was 1.7 in 1989 and 1.3 in 1994. Conditional survival after surviving the first 5 years was similar for the two countries. Adjusting for patho-anatomical variables reduced but did not eliminate the higher risk of death among the Danish patients. Higher population death rates could explain some but not all of the residual elevated risk for Danish women. (C) 2004 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
variables, patho-anatomical, epidemiology, breast cancer, cancer registry, population-based, relative survival, survival
in
European Journal of Cancer
volume
40
issue
8
pages
1233 - 1243
publisher
IFAC & Elsevier Ltd.
external identifiers
  • wos:000221501400030
  • pmid:15110888
  • scopus:11144358483
ISSN
1879-0852
DOI
10.1016/j.ejca.2004.01.005
language
English
LU publication?
yes
id
c63420a2-991b-4a60-8e5b-093f8508d5be (old id 277308)
date added to LUP
2007-10-19 14:49:21
date last changed
2017-11-05 03:42:28
@article{c63420a2-991b-4a60-8e5b-093f8508d5be,
  abstract     = {Analyses of data from cancer registries have shown a 10% unit difference in 5-year relative survival between Danish and Swedish patients with breast cancer. This study investigates the effect of age and patho-anatomic variables on this survival difference. Hospital records were collected for women over 40 years of age diagnosed in 1989 or 1994 in east Denmark and south Sweden; patho-anatomical variables and survival were compared between 2289 Danish and 1715 Swedish women. Tumours were smaller, node-negative axillae more frequent and well-differentiated tumours almost 10% more frequent in Sweden. A superior 5-year relative survival in Sweden was found in the 50- to 79-year age group. The adjusted hazard rate ratio between countries was 1.7 in 1989 and 1.3 in 1994. Conditional survival after surviving the first 5 years was similar for the two countries. Adjusting for patho-anatomical variables reduced but did not eliminate the higher risk of death among the Danish patients. Higher population death rates could explain some but not all of the residual elevated risk for Danish women. (C) 2004 Elsevier Ltd. All rights reserved.},
  author       = {Christensen, LH and Engholm, G and Ceberg, J and Hein, S and Perfekt, Roland and Tange, UB and Andersson, M and Mouridsen, HT and Möller, Torgil and Storm, HH},
  issn         = {1879-0852},
  keyword      = {variables,patho-anatomical,epidemiology,breast cancer,cancer registry,population-based,relative survival,survival},
  language     = {eng},
  number       = {8},
  pages        = {1233--1243},
  publisher    = {IFAC & Elsevier Ltd.},
  series       = {European Journal of Cancer},
  title        = {Can the survival difference between breast cancer patients in Denmark and Sweden 1989 and 1994 be explained by patho-anatomical variables? - A population-based study},
  url          = {http://dx.doi.org/10.1016/j.ejca.2004.01.005},
  volume       = {40},
  year         = {2004},
}