ArticleVaccines2021
Using Household Surveys to Assess Missed Opportunities for Simultaneous Vaccination: Longitudinal Examples from Colombia and Nigeria.
Article in Vaccines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Prevalence of missed opportunities for vaccination (MOV) indicators among children aged 12-23 months in sub-Saharan African countries: An individual-level meta-analysis of DHS and MICS national household data surveys.Human vaccines & immunotherapeutics · 2025Pooled it
- Vaccination Coverage Quality Indicators (VCQI): a flexible open-source tool for survey data analysis.Revista panamericana de salud publica = Pan American journal of public health · 2026Article
- Influencing factors on missed opportunities for vaccination among children aged 0-24 months in hospitals of White Nile State, Sudan: a mixed method study.The Pan African medical journal · 2025Article
- Percentages of Vaccination Coverage Required to Establish Herd Immunity against SARS-CoV-2.Vaccines · 2022Article
- Multilevel analysis of predictors of multiple indicators of childhood vaccination in Nigeria.PloS one · 2022Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
One important strategy to increase vaccination coverage is to minimize missed opportunities for vaccination. Missed opportunities for simultaneous vaccination (MOSV) occur when a child receives one or more vaccines but not all those for which they are eligible at a given visit. Household surveys that record children's vaccination dates can be used to quantify occurrence of MOSVs and their impact on achievable vaccination coverage. We recently automated some MOSV analyses in the World Health Organization's freely available software: Vaccination Coverage Quality Indicators (VCQI) making it straightforward to study MOSVs for any Demographic & Health Survey (DHS), Multi-Indicator Cluster Survey (MICS), or Expanded Programme on Immunization (EPI) survey. This paper uses VCQI to analyze MOSVs for basic vaccine doses among children aged 12-23 months in four rounds of DHS in Colombia (1995, 2000, 2005, and 2010) and five rounds of DHS in Nigeria (1999, 2003, 2008, 2013, and 2018). Outcomes include percent of vaccination visits MOSVs occurred, percent of children who experienced MOSVs, percent of MOSVs that remained uncorrected (that is, the missed vaccine had still not been received at the time of the survey), and the distribution of time-to-correction for children who received the MOSV dose at a later visit.
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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.