Evidence map›Paper›PMID 11777798›Full record

ArticleBMJ (Clinical research ed.)2002

Individual income, income distribution, and self rated health in Japan: cross sectional analysis of nationally representative sample.

Kenji Shibuya, Hideki Hashimoto, Eiji Yano

Abstract read
In one paragraph

Article in BMJ (Clinical research ed.), 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 3 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

70 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Income, Self-Rated Health, and Morbidity. A Systematic Review of Longitudinal Studies.International journal of environmental research and public health · 2019
    Pooled it
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  13. Income inequality and self-rated health status in Colombia.International journal for equity in health · 2022
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  15. A Review of the Types and Characteristics of Healthy Life Expectancy and Methodological Issues.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2022
    Review
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10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Kenji ShibuyaDepartment of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo, Japan.
Hideki Hashimoto
Eiji Yano

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo assess the effects on self rated health of individual income and income distribution in Japan.

designCross sectional analysis. Data collected on household income, self rated health, and other sociodemographic characteristics at the individual level from comprehensive survey of the living conditions of people on health and welfare in a nationally representative sample from each prefecture.

settingPrefectures in Japan.

participants80 899 people aged >15 years with full records in survey.

main outcome measuresDichotomous variable for self rated health of each respondent (0 if excellent, very good or good; 1 if fair or poor).

resultsInequality in income at the prefecture level measured by the Gini coefficient was comparable with that in other industrialised countries. Unadjusted odds ratios show a 14% increased risk (odds ratio 1.14, 95% confidence interval 1.02 to 1.27) in reporting poor or fair health for individuals living in prefectures with higher inequality in income. After adjustment, individual income was more strongly associated with self rated health than income inequality. Additional inclusion of regional effects showed that median income at the prefecture level was inversely related to self rated health.

conclusionsIndividual income, probably relative to the median prefecture income, has a stronger association with self rated health than income inequality at the prefecture level.

Indexed as

Health StatusAdolescentAdultAgedAged, 80 and overAnalysis of VarianceCross-Sectional StudiesFemaleHumansIncomeJapanMaleMiddle AgedMultivariate AnalysisPovertyRisk Factors

Identifiers

PMID11777798
PMCPMC61652

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

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.