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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03772470
Other study ID # 00007318-4.1
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date August 9, 2018
Est. completion date November 13, 2018

Study information

Verified date December 2018
Source Johns Hopkins Bloomberg School of Public Health
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

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.


Description:

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.


Recruitment information / eligibility

Status Completed
Enrollment 4723
Est. completion date November 13, 2018
Est. primary completion date November 13, 2018
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility 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

Study Design


Related Conditions & MeSH terms


Intervention

Other:
1X airtime incentive
An incentive given in the form of airtime
2X airtime incentive
An incentive given in the form of airtime
Lottery airtime incentive
An incentive given in the form of airtime

Locations

Country Name City State
Colombia Instituto de Salud Publica Pontificia Universidad Javeriana Bogota D.c.
Tanzania Ifakara Health Institute Dar Es Salaam

Sponsors (4)

Lead Sponsor Collaborator
Johns Hopkins Bloomberg School of Public Health Ifakara Health Institute, Pontificia Universidad Javeriana, The Bloomberg Family Foundation, Inc.

Countries where clinical trial is conducted

Colombia,  Tanzania, 

References & Publications (4)

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. — View Citation

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. — View Citation

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. Review. — View Citation

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. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Cooperation 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
Primary 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 Refusal Rate #2 As defined by American Association for Public Opinion Research, refusal rate is defined as (R)/(I+P+R+eU) where R is refusals and breakoffs, I is complete interviews, P is partial interviews, and eU is the estimated eligible proportion of unknowns Through study completion, an average of one month
Secondary Contact Rate #2 As defined by American Association for Public Opinion Research, contact rate is defined as (I+P+R)/(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
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