Use of Airtime Incentives to Improve Short Message Service Surveys in Colombia and Tanzania

NCT03768934 | Completed

• 1 other identifier: 00007318-4.2
• Study Type: interventional
• Target: 2,151
• Locations: 2 countries
• Sites: 2

Brief Summary

This study evaluates the effect of four different airtime incentive amounts on short message service (SMS) survey cooperation, response, refusal and contact rates, as compared to control group, in Colombia and Tanzania.

Conditions

Surveys and Questionnaires; Noncommunicable Diseases

Keywords

mobile phone surveys; short message service; incentive

Outcome Measures

Primary Outcomes (2)

• Cooperate Rate #1

  As defined by American Association for Public Opinion Research, cooperation rate is defined as I/(I+P+R) where I is complete interviews, P is partial interviews, and R is refusals and breakoffs.

  Through study completion, an average of one month

• Response Rate #4

  As defined by American Association for Public Opinion Research, response rate is defined as (I+P)/(I+P+R+eU) where I is complete interviews, P is partial interviews, R is refusals and breakoffs, and eU is the estimated eligible proportion of unknowns.

  Through study completion, an average of one month

Secondary Outcomes (2)

• Refusal Rate #2

  Through study completion, an average of one month

• Contact Rate #2

  Through study completion, an average of one month

Study Arms (4)

Control

NO INTERVENTION

No airtime incentive for completing the survey

1X Incentive

EXPERIMENTAL

1X airtime incentive

Other: 1X airtime incentive

2X incentive

EXPERIMENTAL

2X airtime incentive

Other: 2X airtime Incentive

Lottery Incentive

EXPERIMENTAL

Lottery airtime incentive where odds of winning lottery are 1 out of 20

Other: Lottery airtime incentive

Interventions

1X airtime incentive OTHER

An incentive given in the form of airtime.

1X Incentive

2X airtime Incentive OTHER

An incentive given in the form of airtime.

2X incentive

Lottery airtime incentive OTHER

An incentive given in the form of airtime.

Lottery Incentive

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• 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.

You may not qualify if:

• Less than 18 years of age

Sponsors & Collaborators

• Johns Hopkins Bloomberg School of Public Health: lead
• The Bloomberg Family Foundation, Inc.: collaborator
• Ifakara Health Institute: collaborator
• Pontificia Universidad Javeriana: collaborator

Study Sites (2)

Instituto de Salud Publica Pontificia Universidad Javeriana

Bogotá, D.C., Colombia

Location

Ifakara Health Institute

Dar es Salaam, Tanzania

Location

Related Publications (4)

• 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.

  PMID: 28476729 BACKGROUND

• 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.

  PMID: 28476725 BACKGROUND

• 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.

  PMID: 28476724 BACKGROUND

• 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.

  PMID: 28476722 BACKGROUND

MeSH Terms

Conditions

Noncommunicable Diseases

Condition Hierarchy (Ancestors)

Disease Attributes; Pathologic Processes; Pathological Conditions, Signs and Symptoms

Study Officials

• Adnan A Hyder, PhD, MBBS

  Johns Hopkins University Bloomberg School of Public Health

  PRINCIPAL INVESTIGATOR

• George W Pariyo, PhD

  Johns Hopkins University Bloomberg School of Public Health

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: Participants will be randomized to one of four airtime 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.

Study Record Dates

• First Submitted: December 5, 2018
• First Posted: December 7, 2018
• Study Start: February 19, 2019
• Primary Completion: April 26, 2019
• Study Completion: April 26, 2019
• Last Updated: August 11, 2020

Record last verified: 2020-08

Data Sharing

• IPD Sharing: Will not share

Locations

TA (1); CO (1)