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Female white-collar workers remain at higher risk of breast cancer after adjustments for individual risk factors related to reproduction and lifestyle

Kullberg, Cecilia; Selander, Jenny; Albin, Maria LU ; Borgquist, Signe LU ; Manjer, Jonas LU and Gustavsson, Per (2017) In Occupational and Environmental Medicine1994-01-01+01:00 74(9). p.652-658
Abstract

Objectives The aim was to investigate the variation in risk of breast cancer between occupational groups with a focus on white-collar and blue-collar workers and to investigate to what extent the differences were explained by risk factors related to reproduction and lifestyle. Methods Between 1991 and 1996, 14 119 women born between 1923 and 1950 and residents of Malmö, Sweden, were included in this cohort study. Individual data on risk factors (eg, age, parity, age at first child, months of breast feeding per child, hormonal replacement therapy, physical activity, alcohol consumption, smoking, height and body mass index) and occupational history were assessed using a questionnaire. First-time diagnoses of invasive breast cancer were... (More)

Objectives The aim was to investigate the variation in risk of breast cancer between occupational groups with a focus on white-collar and blue-collar workers and to investigate to what extent the differences were explained by risk factors related to reproduction and lifestyle. Methods Between 1991 and 1996, 14 119 women born between 1923 and 1950 and residents of Malmö, Sweden, were included in this cohort study. Individual data on risk factors (eg, age, parity, age at first child, months of breast feeding per child, hormonal replacement therapy, physical activity, alcohol consumption, smoking, height and body mass index) and occupational history were assessed using a questionnaire. First-time diagnoses of invasive breast cancer were identified through the Swedish Cancer Registry up until 31 December 2013. Results A total of 897 women were diagnosed with breast cancer. Analyses adjusted for age showed an increased risk for white-collar workers compared with blue-collar workers and indicated higher risks in the occupational categories: professionals, administrative and bookkeeping than among women in sales, transportation, production and service work. This difference was only marginally attenuated after adjustment for an extensive set of risk factors related to reproduction and lifestyle. Conclusion Reproductive and lifestyle factors explain only a minor part of the increased risk of breast cancer in white-collar workers. Further studies are needed to investigate the remaining factors for the difference in risk between occupational groups.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Occupational and Environmental Medicine1994-01-01+01:00
volume
74
issue
9
pages
652 - 658
publisher
BMJ Publishing Group
external identifiers
  • scopus:85027588149
  • wos:000408046500006
ISSN
1351-0711
DOI
10.1136/oemed-2016-104043
language
English
LU publication?
yes
id
d8414dc1-a211-4880-91ad-f99f6d1615f1
date added to LUP
2017-09-04 12:34:54
date last changed
2018-01-07 12:17:33
@article{d8414dc1-a211-4880-91ad-f99f6d1615f1,
  abstract     = {<p>Objectives The aim was to investigate the variation in risk of breast cancer between occupational groups with a focus on white-collar and blue-collar workers and to investigate to what extent the differences were explained by risk factors related to reproduction and lifestyle. Methods Between 1991 and 1996, 14 119 women born between 1923 and 1950 and residents of Malmö, Sweden, were included in this cohort study. Individual data on risk factors (eg, age, parity, age at first child, months of breast feeding per child, hormonal replacement therapy, physical activity, alcohol consumption, smoking, height and body mass index) and occupational history were assessed using a questionnaire. First-time diagnoses of invasive breast cancer were identified through the Swedish Cancer Registry up until 31 December 2013. Results A total of 897 women were diagnosed with breast cancer. Analyses adjusted for age showed an increased risk for white-collar workers compared with blue-collar workers and indicated higher risks in the occupational categories: professionals, administrative and bookkeeping than among women in sales, transportation, production and service work. This difference was only marginally attenuated after adjustment for an extensive set of risk factors related to reproduction and lifestyle. Conclusion Reproductive and lifestyle factors explain only a minor part of the increased risk of breast cancer in white-collar workers. Further studies are needed to investigate the remaining factors for the difference in risk between occupational groups.</p>},
  author       = {Kullberg, Cecilia and Selander, Jenny and Albin, Maria and Borgquist, Signe and Manjer, Jonas and Gustavsson, Per},
  issn         = {1351-0711},
  language     = {eng},
  number       = {9},
  pages        = {652--658},
  publisher    = {BMJ Publishing Group},
  series       = {Occupational and Environmental Medicine1994-01-01+01:00},
  title        = {Female white-collar workers remain at higher risk of breast cancer after adjustments for individual risk factors related to reproduction and lifestyle},
  url          = {http://dx.doi.org/10.1136/oemed-2016-104043},
  volume       = {74},
  year         = {2017},
}