Evidence map›Paper›PMID 12646545›Full record

ArticleJournal of epidemiology and community health2003

No association of income inequality with adult mortality within New Zealand: a multi-level study of 1.4 million 25-64 year olds.

T Blakely, J Atkinson, D O'Dea

Abstract read
In one paragraph

Article in Journal of epidemiology and community health, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Precarious Suicide Behavior According to Housing Price Gap: A Case Study on South Korea.International journal of environmental research and public health · 2021
    Article
  5. Observational
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  14. Income inequality measures.Journal of epidemiology and community health · 2007
    Review
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  18. Article
  19. Income inequality and health in Ontario: a multilevel analysis.Canadian journal of public health = Revue canadienne de sante publique
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

T BlakelyDepartment of Public Health, Wellington School of Medicine, University of Otago, Wellington, New Zealand. tblakely@wnmeds.ac.nz
J Atkinson
D O'Dea

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectiveTo determine the association of regional income inequality within New Zealand with mortality among 25-64 year olds.

designIndividual census and mortality records were linked over the 1991-94 period. Income inequality (Gini coefficients) and average household income variables were calculated for 35 regions. "Individual level" variables were sex, age, ethnicity, household income, rurality, and small area socioeconomic deprivation. Logistic regression was used for the analyses. Sensitivity analyses for the level of regional aggregation were conducted.

participants1.4 million New Zealand census respondents aged 25-64 years followed up for mortality for three years. MAIN

resultsControlling for age, ethnicity, rurality, household income, and regional mean income, there was no association of income inequality with all cause mortality for either men (OR=1.007 for a 0.01 increase in the Gini, 95% confidence intervals 0.989 to 1.024) or women (OR=1.004, 0. 983 to 1.026). By cause of death (cancer, cardiovascular disease, unintentional injury, and suicide) there was some suggestion of a positive association for female unintentional injury (OR=1.068, 0.952 to 1.198) and suicide (OR=1.087, 0.957 to 1.234) but the 95% confidence intervals all included 1.0. Failure to control for ethnicity at the individual level resulted in some association of increasing regional income inequality with increasing mortality risk. Using fewer (n=14) or more (n=73) regional divisions did not substantially change the findings.

conclusionThere is no convincing evidence of an association of income inequality within New Zealand with adult mortality. Previous ecological analyses within New Zealand suggesting an association of income inequality with mortality were confounded by ethnicity at the individual level. However, this study does not refute the possibility that income inequality at the national level affects health.

Indexed as

MortalityAdultCause of DeathFemaleFollow-Up StudiesHumansIncomeLogistic ModelsMaleMedical Record LinkageMiddle AgedNew ZealandOdds RatioPovertyRisk FactorsSocioeconomic Factors

Identifiers

PMID12646545
PMCPMC1732433

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.