Research report
Decline of the relative risk of death associated with low
employment grade at older age: the impact of age related differences in
smoking, blood pressure and plasma cholesterol
P J Marang-van de Mheena, M J Shipleyb, J C M Wittemanc, M G Marmotb, L J Gunning-Schepersa
a Department of Social
Medicine, Academic Medical Centre, PO Box 22660, 1100 DD Amsterdam, the
Netherlands, b Department of Epidemiology and
Public Health, University College London Medical School, UK, c Department of
Epidemiology and Biostatistics, Erasmus University Medical School,
Rotterdam, the Netherlands
Correspondence to: Dr Marang-van de Mheen (p.j.vandemheen{at}amc.uva.nl)
Accepted for publication 24 August 2000
STUDY OBJECTIVE
To
explore whether the observed age related decline in the relative risk
of death associated with low employment grade can be explained by the
profiles of smoking, blood pressure and plasma cholesterol changing
differently with age between the employment grades.
DESIGN
Prospective
cohort study with 25 years of mortality follow up.
SETTING
Whitehall study.
PARTICIPANTS
There
were 16 984 men aged 40 to 69 years at baseline with complete
information on smoking, blood pressure and plasma cholesterol.
MAIN RESULTS
The
relative risk of death associated with low employment grade decreased
from 2.1 at 55-59 years of age to 1.3 at 85-89 years of age.
Adjustment for smoking status and blood pressure, attenuated the age
related decline of the relative risk by 18% and 3% respectively; adjustment for plasma cholesterol increased the decline by 3%. Taken
together, these risk factors explain 20% of the observed age related decline.
CONCLUSIONS
A small
part of the observed age related decline in the relative risk of death
associated with low employment grade can be explained by differential
changes in the profiles of smoking, blood pressure and plasma
cholesterol with age between the employment grades.
Keywords: relative risk; risk factors; socioeconomic status; differential mortality
© 2001 by Journal of Epidemiology and Community Health
This article has been cited by other articles:
-
Cheng, T Y, Wen, C P, Tsai, S P, Chung, W S I, Hsu, C C
(2005). Reducing health disparity in Taiwan: quantifying the role of smoking. Tobacco Control
14: i23-i27
[Abstract] [Full Text] -
Evans, J R, Fletcher, A E, Wormald, R P L
(2005). 28 000 Cases of age related macular degeneration causing visual loss in people aged 75 years and above in the United Kingdom may be attributable to smoking. Br J Ophthalmol
89: 550-553
[Abstract] [Full Text]
Register for free content
The full back archive is now available for all BMJ Journals. Institutional subscribers may access the entire archive as part of their subscription. Personal subscribers will also have access to all content when logged in. Non-subscribers who register have free access to all articles published before 2006 right back to volume 1 issue 1. Register here to access the free archive of all BMJ Journals.
Don't forget to sign up for content alerts so you keep up to date with all the articles as they are published.
