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Absolute rather than relative income is a better socioeconomic predictor of chronic obstructive pulmonary disease in Swedish adults

Axelsson Fisk, Sten LU and Merlo, Juan LU (2017) In International Journal for Equity in Health 16(1).
Abstract

BACKGROUND: While psychosocial theory claims that socioeconomic status (SES), acting through social comparisons, has an important influence on susceptibility to disease, materialistic theory says that socioeconomic position (SEP) and related access to material resources matter more. However, the relative role of SEP versus SES in chronic obstructive pulmonary disease (COPD) risk has still not been examined.

METHOD: We investigated the association between SES/SEP and COPD risk among 667 094 older adults, aged 55 to 60, residing in Sweden between 2006 and 2011. Absolute income in five groups by population quintiles depicted SEP and relative income expressed as quintile groups within each absolute income group represented SES. We... (More)

BACKGROUND: While psychosocial theory claims that socioeconomic status (SES), acting through social comparisons, has an important influence on susceptibility to disease, materialistic theory says that socioeconomic position (SEP) and related access to material resources matter more. However, the relative role of SEP versus SES in chronic obstructive pulmonary disease (COPD) risk has still not been examined.

METHOD: We investigated the association between SES/SEP and COPD risk among 667 094 older adults, aged 55 to 60, residing in Sweden between 2006 and 2011. Absolute income in five groups by population quintiles depicted SEP and relative income expressed as quintile groups within each absolute income group represented SES. We performed sex-stratified logistic regression models to estimate odds ratios and the area under the receiver operator curve (AUC) to compare the discriminatory accuracy of SES and SEP in relation to COPD.

RESULTS: Even though both absolute (SEP) and relative income (SES) were associated with COPD risk, only absolute income (SEP) presented a clear gradient, so the poorest had a three-fold higher COPD risk than the richest individuals. While the AUC for a model including only age was 0.54 and 0.55 when including relative income (SES), it increased to 0.65 when accounting for absolute income (SEP). SEP rather than SES demonstrated a consistent association with COPD.

CONCLUSIONS: Our study supports the materialistic theory. Access to material resources seems more relevant to COPD risk than the consequences of low relative income.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Journal Article
in
International Journal for Equity in Health
volume
16
issue
1
publisher
BioMed Central
external identifiers
  • scopus:85018773821
  • wos:000403966800001
ISSN
1475-9276
DOI
10.1186/s12939-017-0566-2
language
English
LU publication?
yes
id
8c2b173c-e56d-4b35-8ed5-27e3c88a15b8
date added to LUP
2017-05-13 14:23:02
date last changed
2018-04-22 04:28:53
@article{8c2b173c-e56d-4b35-8ed5-27e3c88a15b8,
  abstract     = {<p>BACKGROUND: While psychosocial theory claims that socioeconomic status (SES), acting through social comparisons, has an important influence on susceptibility to disease, materialistic theory says that socioeconomic position (SEP) and related access to material resources matter more. However, the relative role of SEP versus SES in chronic obstructive pulmonary disease (COPD) risk has still not been examined.</p><p>METHOD: We investigated the association between SES/SEP and COPD risk among 667 094 older adults, aged 55 to 60, residing in Sweden between 2006 and 2011. Absolute income in five groups by population quintiles depicted SEP and relative income expressed as quintile groups within each absolute income group represented SES. We performed sex-stratified logistic regression models to estimate odds ratios and the area under the receiver operator curve (AUC) to compare the discriminatory accuracy of SES and SEP in relation to COPD.</p><p>RESULTS: Even though both absolute (SEP) and relative income (SES) were associated with COPD risk, only absolute income (SEP) presented a clear gradient, so the poorest had a three-fold higher COPD risk than the richest individuals. While the AUC for a model including only age was 0.54 and 0.55 when including relative income (SES), it increased to 0.65 when accounting for absolute income (SEP). SEP rather than SES demonstrated a consistent association with COPD.</p><p>CONCLUSIONS: Our study supports the materialistic theory. Access to material resources seems more relevant to COPD risk than the consequences of low relative income.</p>},
  articleno    = {70},
  author       = {Axelsson Fisk, Sten and Merlo, Juan},
  issn         = {1475-9276},
  keyword      = {Journal Article},
  language     = {eng},
  month        = {05},
  number       = {1},
  publisher    = {BioMed Central},
  series       = {International Journal for Equity in Health},
  title        = {Absolute rather than relative income is a better socioeconomic predictor of chronic obstructive pulmonary disease in Swedish adults},
  url          = {http://dx.doi.org/10.1186/s12939-017-0566-2},
  volume       = {16},
  year         = {2017},
}