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NCT03772470

Use of Airtime Amounts to Improve Interactive Voice Response Surveys in Colombia and Tanzania

NCT ID: NCT03772470

Last Updated: 2018-12-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

4723 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-08-09

Study Completion Date

2018-11-13

Brief Summary

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This study evaluates the effect of three different airtime incentive amounts on interactive voice response (IVR) survey cooperation, response, refusal and contact rates, as compared to control group, in Colombia and Tanzania.

Detailed Description

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Using random digit dialing (RDD) sampling technique, participants were randomized one of four airtime incentive amounts contingent on them completing the noncommunicable disease risk factor survey. This mobile phone survey will be sent as an interactive voice response (IVR). In IVR surveys, participants use their touch tone key pad to answer pre-recorded questions. (i.e. If you are male, pres 1; If you are female, press 2). This study will be conducted in both Colombia and Tanzania.

Conditions

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Surveys and Questionnaires Noncommunicable Diseases

Keywords

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mobile phone surveys interactive voice response incentive

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Participants will be randomized to one of four airtime incentive amounts: 1) no incentive; 2) 1X incentive; 3) 2X incentive or 4) a lottery incentive, in which one out of every 20 participants will receive the incentive. Airtime incentives were sent if participants completed the noncommunicable disease risk factor survey.

Primary Study Purpose

OTHER

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Control

No airtime incentive was given for completing the survey

Group Type NO_INTERVENTION

No interventions assigned to this group

1X Incentive

1X airtime incentive

Group Type EXPERIMENTAL

1X airtime incentive

Intervention Type OTHER

An incentive given in the form of airtime

2X incentive

2X airtime incentive

Group Type EXPERIMENTAL

2X airtime incentive

Intervention Type OTHER

An incentive given in the form of airtime

Lottery Incentive

Lottery airtime incentive given to one in 20 participants

Group Type EXPERIMENTAL

Lottery airtime incentive

Intervention Type OTHER

An incentive given in the form of airtime

Interventions

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1X airtime incentive

An incentive given in the form of airtime

Intervention Type OTHER

2X airtime incentive

An incentive given in the form of airtime

Intervention Type OTHER

Lottery airtime incentive

An incentive given in the form of airtime

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Access to a mobile phone
* Greater or equal to 18 years of age
* In Colombia, conversant in the Spanish language. In Tanzania, conversant in the Swahili language.

Exclusion Criteria

* Less than 18 years of age

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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The Bloomberg Family Foundation, Inc.

OTHER

Sponsor Role collaborator

Ifakara Health Institute

OTHER

Sponsor Role collaborator

Pontificia Universidad Javeriana

OTHER

Sponsor Role collaborator

Johns Hopkins Bloomberg School of Public Health

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Adnan A Hyder, PhD, MBBS

Role: PRINCIPAL_INVESTIGATOR

Johns Hopkins University Bloomberg School of Public Health

George W. Pariyo, PhD

Role: PRINCIPAL_INVESTIGATOR

Johns Hopkins University Bloomberg School of Public Health

Locations

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Instituto de Salud Publica Pontificia Universidad Javeriana

Bogotá, D.C., Colombia

Site Status

Ifakara Health Institute

Dar es Salaam, , Tanzania

Site Status

Countries

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Colombia Tanzania

References

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Gibson DG, Pariyo GW, Wosu AC, Greenleaf AR, Ali J, Ahmed S, Labrique AB, Islam K, Masanja H, Rutebemberwa E, Hyder AA. Evaluation of Mechanisms to Improve Performance of Mobile Phone Surveys in Low- and Middle-Income Countries: Research Protocol. JMIR Res Protoc. 2017 May 5;6(5):e81. doi: 10.2196/resprot.7534.

Reference Type BACKGROUND

PMID: 28476729 (View on PubMed)

Gibson DG, Pereira A, Farrenkopf BA, Labrique AB, Pariyo GW, Hyder AA. Mobile Phone Surveys for Collecting Population-Level Estimates in Low- and Middle-Income Countries: A Literature Review. J Med Internet Res. 2017 May 5;19(5):e139. doi: 10.2196/jmir.7428.

Reference Type BACKGROUND

PMID: 28476725 (View on PubMed)

Gibson DG, Farrenkopf BA, Pereira A, Labrique AB, Pariyo GW. The Development of an Interactive Voice Response Survey for Noncommunicable Disease Risk Factor Estimation: Technical Assessment and Cognitive Testing. J Med Internet Res. 2017 May 5;19(5):e112. doi: 10.2196/jmir.7340.

Reference Type BACKGROUND

PMID: 28476724 (View on PubMed)

Hyder AA, Wosu AC, Gibson DG, Labrique AB, Ali J, Pariyo GW. Noncommunicable Disease Risk Factors and Mobile Phones: A Proposed Research Agenda. J Med Internet Res. 2017 May 5;19(5):e133. doi: 10.2196/jmir.7246.

Reference Type BACKGROUND

PMID: 28476722 (View on PubMed)

Other Identifiers

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00007318-4.1

Identifier Type: -

Identifier Source: org_study_id