Evidence map›Paper›PMID 27026145›Full record

Trial reportVaccine2016

SMS text message reminders to improve infant vaccination coverage in Guatemala: A pilot randomized controlled trial.

Gretchen J Domek, Ingrid L Contreras-Roldan, Sean T O'Leary, Sheana Bull, Anna Furniss, Allison Kempe, Edwin J Asturias

Registry-linked trialOpen access · hybridAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Vaccine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01663636 (SMS Mobile Technology for Vaccine Coverage and Acceptance in Guatemalan Infants), which is not on this map. Cited by 65 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 11 pooled it
28.8field-weighted citation impact, top 1% of its field
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.

NCT01663636 completednot on this map

SMS Mobile Technology for Vaccine Coverage and Acceptance in Guatemalan Infants

TypeobservationalSponsorUniversity of Colorado, DenverRan2012 to 2015Enrolled321ConditionsAdherence to Vaccination SchedulesArmsSMS message reminding mothers to come for their scheduled vaccines
3 · Its place in the literature

Who cites it

65 citing papers in PubMed, 11 syntheses or guidelines pooled it, 132 citations in OpenAlex.

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  8. Patient reminder and recall interventions to improve immunization rates.The Cochrane database of systematic reviews · 2018
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5 more citing papers are in PubMed but not listed here.

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

7 authors at 4 institutions in 2 countries.

Gretchen J DomekDepartment of Pediatrics, University of Colorado Anschutz Medical Campus, B065, 13123 E. 16th Ave., Aurora, CO 80045, USA; Center for Global Health, Colorado School of Public Health, Mail Stop A090, 13199 E Montview Blvd, Suite 310, Aurora, CO 80045, USA. Electronic address: Gretchen.domek@childrenscolorado.org.
Ingrid L Contreras-RoldanCenter for Health Studies, Universidad del Valle de Guatemala, 18 Av. 11-95, Zona 15, Vista Hermosa III, Guatemala City, Guatemala. Electronic address: Icontreras@ces.uvg.edu.gt.
Sean T O'LearyDepartment of Pediatrics, University of Colorado Anschutz Medical Campus, B065, 13123 E. 16th Ave., Aurora, CO 80045, USA; Adult and Child Center for Health Outcomes Research and Delivery Science (ACCORDS), University of Colorado Anschutz Medical Campus, Mail Stop F443, 13199 E Montview Blvd, Suite 300, Aurora, CO 80045, USA. Electronic address: Sean.o'leary@childrenscolorado.org.
Sheana BullCenter for Global Health, Colorado School of Public Health, Mail Stop A090, 13199 E Montview Blvd, Suite 310, Aurora, CO 80045, USA; Department of Community and Behavioral Health, Colorado School of Public Health, 13001 E 17th Place, B119, Bldg 500, Rm E3345A, Aurora, CO 80045, USA. Electronic address: Sheana.bull@ucdenver.edu.
Anna FurnissAdult and Child Center for Health Outcomes Research and Delivery Science (ACCORDS), University of Colorado Anschutz Medical Campus, Mail Stop F443, 13199 E Montview Blvd, Suite 300, Aurora, CO 80045, USA. Electronic address: Anna.furniss@ucdenver.edu.
Allison KempeDepartment of Pediatrics, University of Colorado Anschutz Medical Campus, B065, 13123 E. 16th Ave., Aurora, CO 80045, USA; Adult and Child Center for Health Outcomes Research and Delivery Science (ACCORDS), University of Colorado Anschutz Medical Campus, Mail Stop F443, 13199 E Montview Blvd, Suite 300, Aurora, CO 80045, USA. Electronic address: Allison.kempe@childrenscolorado.org.
Edwin J AsturiasDepartment of Pediatrics, University of Colorado Anschutz Medical Campus, B065, 13123 E. 16th Ave., Aurora, CO 80045, USA; Center for Global Health, Colorado School of Public Health, Mail Stop A090, 13199 E Montview Blvd, Suite 310, Aurora, CO 80045, USA. Electronic address: Edwin.asturias@childrenscolorado.org.
University of Colorado Anschutz Medical Campus · USCenter for Global Health · USColorado School of Public Health · USUniversidad del Valle de Guatemala · GT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatient reminder systems are an evidence-based way to improve childhood vaccination rates but are difficult to implement in low- and middle-income countries (LMICs). Short Message Service (SMS) texts may offer a potential low-cost solution, especially in LMICs where mobile phones are becoming more ubiquitous.

objectiveTo determine if an SMS-based vaccination reminder system aimed at improving completion of the infant primary immunization series is feasible and acceptable in Guatemala.

methodsA pilot randomized controlled trial was conducted at two public health clinics in Guatemala City. Infants aged 8-14 weeks presenting for the first dose of the primary immunization series were enrolled in March-April 2013. Participants randomized into the intervention received three SMS reminders one week before the second and third dose. A follow-up acceptability survey was administered to both groups.

resultsThe participation rate was 86.8% (321/370); 8 did not own a cell phone and 12 could not use SMS. 96.9% of intervention parents were sent at least one SMS reminder prior to visit 2 and 96.3% prior to visit 3. Both intervention and usual care participants had high rates of vaccine and visit completion, with a non-statistically significant higher percentage of children in the intervention completing both visit 2 (95.0% vs. 90.1%, p=.12) and visit 3 (84.4% vs. 80.7%, p=.69). More intervention vs. usual care parents agreed that SMS reminders would be helpful for remembering appointments (p<.0001), agreed to being interested in receiving future SMS reminders (p<.0001), and said that they would be willing to pay for future SMS reminders (p=.01).

conclusionThis proof of concept evaluation showed that a new application of SMS technology is feasible to implement in a LMIC with high user satisfaction. Larger studies with modifications in the SMS system are needed to determine effectiveness (Clinical Trial Registry NCT01663636).

Indexed as

ParentsReminder SystemsText MessagingVaccinationAdultAppointments and SchedulesCell PhoneFemaleGuatemalaHumansInfantMaleSurveys and QuestionnairesYoung AdultChildhoodImmunizationmHealthReminder-recallSMSText messaging

Identifiers

PMID27026145
PMCPMC4859823
OpenAlexW2304181341

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.