ArticleBulletin of the World Health Organization2025
Trends in coverage following an equity-oriented strategy for introducing new vaccines, Peru, 2004-2022.
Article in Bulletin of the World Health Organization, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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.
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.
Who cites it
2 citing papers in PubMed.
- Molecular detection ofNew microbes and new infections · 2025Article
- Twenty-five years of pertussis outbreaks in the Peruvian Amazon: a call to strengthen equity in vaccination and control.Lancet regional health. Americas · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: To evaluate the outcome of Peru's strategy to introduce new vaccines in the poorest regions with high child mortality rates. Methods: We analysed data from nationally representative annual health surveys conducted between 2004 and 2022. We examined associations between vaccine coverage and poverty (proportion of households in the poorest 40% of the national wealth index) at the ecological level using the country's 25 regions and at the individual child level using household wealth quintiles. We obtained vaccination data from home-based records. Findings: The surveys included 49 023 children aged 18-29 months. In the ecological analyses, coverage for Conclusion: The strategy increased coverage in the poorest districts initially and, as national coverage grew, regional disparities were eliminated. However, socioeconomic differences persisted, with wealthier children maintaining higher vaccination rates throughout the study. To eliminate these disparities, geographic targeting should be complemented with household-level targeting.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.