Trial reportBMC public health2016
Reducing routine vaccination dropout rates: evaluating two interventions in three Kenyan districts, 2014.
Trial report in BMC public health, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 18 of them syntheses that pooled 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.
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
82 citing papers in PubMed, 18 syntheses or guidelines pooled it.
- Vaccination dropout and associated factors among children in Ethiopia: a systematic review and meta-analysis (2014-2024).BMC pediatrics · 2025Pooled it
- Pooled it
- Pooled it
- SMS-based interventions for improving child and adolescent vaccine coverage and timeliness: a systematic review.BMC public health · 2024Pooled it
- The effect of mHealth on childhood vaccination in Africa: A systematic review and meta-analysis.PloS one · 2024Pooled it
- Interventions for improving coverage of childhood immunisation in low- and middle-income countries.The Cochrane database of systematic reviews · 2023Pooled it
- Behavioral interventions for vaccination uptake: A systematic review and meta-analysis.Health policy (Amsterdam, Netherlands) · 2023Pooled it
- Vaccination dropout among children in Sub-Saharan Africa: Systematic review and meta-analysis.Human vaccines & immunotherapeutics · 2022Pooled it
- mHealth interventions to reduce maternal and child mortality in Sub-Saharan Africa and Southern Asia: A systematic literature review.Frontiers in global women's health · 2022Pooled it
- Factors that influence parents' and informal caregivers' views and practices regarding routine childhood vaccination: a qualitative evidence synthesis.The Cochrane database of systematic reviews · 2021Pooled it
- Pooled it
- Short message service (SMS) reminders for childhood immunisation in low-income and middle-income countries: a systematic review and meta-analysis.BMJ global health · 2021Pooled it
- Targeted client communication via mobile devices for improving maternal, neonatal, and child health.The Cochrane database of systematic reviews · 2020Pooled it
- Effect of mobile text message reminders on routine childhood vaccination: a systematic review and meta-analysis.Systematic reviews · 2019Pooled it
- One-way SMS and healthcare outcomes in Africa: Systematic review of randomised trials with meta-analysis.PloS one · 2019Pooled it
- Patient reminder and recall interventions to improve immunization rates.The Cochrane database of systematic reviews · 2018Pooled it
- Mobile Health Interventions for Improving Health Outcomes in Youth: A Meta-analysis.JAMA pediatrics · 2017Pooled it
- Interventions for improving coverage of childhood immunisation in low- and middle-income countries.The Cochrane database of systematic reviews · 2016Pooled it
- The effect of mHealth on childhood vaccination and its associated factors among South Ethiopian mothers: a cluster randomized controlled trial.Scientific reports · 2025Trial
- The effect of mHealth application on improving childhood immunization coverage and timeliness: a case of the Gurage Zone, SNNPR, Ethiopia, a randomized controlled trial.BMC public health · 2025Trial
22 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundGlobally, vaccine preventable diseases are responsible for nearly 20% of deaths annually among children <5 years old. Worldwide, many children dropout from the vaccination program, are vaccinated late, or incompletely vaccinated. We evaluated the impact of text messaging and sticker reminders to reduce dropouts from the vaccination program.
methodsThe evaluation was conducted in three selected districts in Kenya: Machakos, Langata and Njoro. Three health facilities were selected in each district, and randomly allocated to send text messages or provide stickers reminding parents to bring their children for second and third dose of pentavalent vaccine, or to the control group (routine reminder) with next appointment date indicated on the well-child booklet. Children aged <12 months presenting for their first dose of pentavalent vaccine were enrolled. A dropout was defined as not returning for vaccination ≥ 2 weeks after scheduled date for third dose of pentavalent vaccine. We calculated dropout rate as a percentage of the difference between first and third pentavalent dose.
resultsWe enrolled 1,116 children; 372 in each intervention and 372 controls between February and October 2014. Median age was 45 days old (range: 31-99 days), and 574 (51%) were male. There were 136 (12%) dropouts. Thirteen (4%) children dropped out among those who received text messages, 60 (16%) among who received sticker reminders, and 63 (17%) among the controls. Having a caregiver with below secondary education [Odds Ratio (OR) 1.8, 95% Confidence Interval (CI) 1.1-3.2], and residing >5 km from health facility (OR 1.6, CI 1.0-2.7) were associated with higher odds of dropping out. Those who received text messages were less likely to drop out compared to controls (OR 0.2, CI 0.04-0.8). There was no statistical difference between those who received stickers and controls (OR 0.9, CI 0.5-1.6).
conclusionText message reminders can reduce vaccination dropout rates in Kenya. We recommend the extended implementation of text message reminders in routine vaccination services.
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.