Evidence map›Paper›PMID 30341112›Full record

SynthesisBMJ open2018

How much evidence is there that political factors are related to population health outcomes? An internationally comparative systematic review.

Max Barnish, Michelle Tørnes, Becky Nelson-Horne

Abstract readSystematic Review
In one paragraph

Synthesis in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

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

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. A scoping review and expert consensus on digital determinants of health.Bulletin of the World Health Organization · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Life Conditions as Mediators of Welfare State Effect on Mental Wellbeing among Oldest Old in Europe.International journal of environmental research and public health · 2022
    Article
  13. Article
  14. Corruption and its relation to prevalence and death due to noncommunicable diseases and risk factors: a global perspective.Revista panamericana de salud publica = Pan American journal of public health · 2022
    Article
  15. Article
  16. Beyond Behaviour: How Health Inequality Theory Can Enhance Our Understanding of the 'Alcohol-Harm Paradox'.International journal of environmental research and public health · 2021
    Review
  17. Article
  18. Review
  19. Article
  20. Caring for patients with lived experience of homelessness.Canadian family physician Medecin de famille canadien · 2020
    Review
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.

Max BarnishInstitute of Health Research, Exeter Medical School, University of Exeter, Exeter, UK.
Michelle TørnesAgeing Clinical and Experimental Research (ACER) team, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK.
Becky Nelson-HorneIndependent Scholar, Glasgow, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo provide a 7-year update of the most recent systematic review about the relationships between political features and population health outcomes.

settingInternationally comparative scholarly literature. DATA SOURCES: Ten scholarly bibliographic databases plus supplementary searches in bibliographies and Google Scholar were used to update a previous systematic review. The final search was conducted in November 2017. PRIMARY AND SECONDARY OUTCOME MEASURES: Any population health outcome measure, apart from healthcare spending.

results73 unique publications were identified from the previous systematic review. The database searches to update the literature identified 45 356 raw records with 35 207 remaining following de-duplication. 55 publications were identified from supplementary searches. In total, 258 publications proceeded to full-text review and 176 were included in narrative synthesis. 85 studies were assessed at low risk of bias, 89 at moderate risk of bias and none at high risk of bias. Assessment could not be conducted for two studies that had only book chapters. No meta-analysis was conducted. 102 studies assessed welfare state generosity and 79 found a positive association. Of the 17 studies that assessed political tradition, 15 were found to show a positive association with the left-of-centre tradition. 44 studies assessed democracy and 34 found a positive association. 28 studies assessed globalisation and 14 found a negative association, while seven were positive and seven inconclusive.

conclusionsThis review concludes that welfare state generosity, left-of-centre democratic political tradition and democracy are generally positively associated with population health. Globalisation may be negatively associated with population health, but the results are less conclusive. It is important for the academic public health community to engage with the political evidence base in its research as well as in stakeholder engagement, in order to facilitate positive outcomes for population health.

Indexed as

PoliticsBiasHealth Plan ImplementationHumansOutcome Assessment, Health CarePublic HealthSocial Welfarehealth policypolitical determinants of healthpublic healthsocial medicine

Identifiers

PMID30341112
PMCPMC6196855

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

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.