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

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ClinicalTrials.gov Identifier: NCT03772470
Recruitment Status : Completed
First Posted : December 11, 2018
Last Update Posted : December 11, 2018
Sponsor:
Collaborators:
The Bloomberg Family Foundation, Inc.
Ifakara Health Institute
Pontificia Universidad Javeriana
Information provided by (Responsible Party):
Johns Hopkins Bloomberg School of Public Health

Tracking Information
First Submitted Date  ICMJE December 10, 2018
First Posted Date  ICMJE December 11, 2018
Last Update Posted Date December 11, 2018
Actual Study Start Date  ICMJE August 9, 2018
Actual Primary Completion Date November 13, 2018   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: December 10, 2018)
  • Cooperation Rate #1 [ Time Frame: Through study completion, an average of one month ]
    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.
  • Response Rate #4 [ Time Frame: Through study completion, an average of one month ]
    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
Original Primary Outcome Measures  ICMJE Same as current
Change History No Changes Posted
Current Secondary Outcome Measures  ICMJE
 (submitted: December 10, 2018)
  • Refusal Rate #2 [ Time Frame: Through study completion, an average of one month ]
    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
  • Contact Rate #2 [ Time Frame: Through study completion, an average of one month ]
    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
Original Secondary Outcome Measures  ICMJE Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Use of Airtime Amounts to Improve Interactive Voice Response Surveys in Colombia and Tanzania
Official Title  ICMJE A Randomized Controlled Trial of Varying Airtime Amounts to Improve Interactive Voice Response (IVR) Survey Performance in Colombia and Tanzania
Brief 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.
Detailed 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.
Study Type  ICMJE Interventional
Study Phase  ICMJE Not Applicable
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description:
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.
Masking: Single (Outcomes Assessor)
Primary Purpose: Other
Condition  ICMJE
  • Surveys and Questionnaires
  • Noncommunicable Diseases
Intervention  ICMJE
  • Other: 1X airtime incentive
    An incentive given in the form of airtime
  • Other: 2X airtime incentive
    An incentive given in the form of airtime
  • Other: Lottery airtime incentive
    An incentive given in the form of airtime
Study Arms  ICMJE
  • No Intervention: Control
    No airtime incentive was given for completing the survey
  • Experimental: 1X Incentive
    1X airtime incentive
    Intervention: Other: 1X airtime incentive
  • Experimental: 2X incentive
    2X airtime incentive
    Intervention: Other: 2X airtime incentive
  • Experimental: Lottery Incentive
    Lottery airtime incentive given to one in 20 participants
    Intervention: Other: Lottery airtime incentive
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: December 10, 2018)
4723
Original Actual Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE November 13, 2018
Actual Primary Completion Date November 13, 2018   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

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
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE Yes
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Colombia,   Tanzania
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT03772470
Other Study ID Numbers  ICMJE 00007318-4.1
Has Data Monitoring Committee No
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
IPD Sharing Statement  ICMJE
Plan to Share IPD: No
Responsible Party Johns Hopkins Bloomberg School of Public Health
Study Sponsor  ICMJE Johns Hopkins Bloomberg School of Public Health
Collaborators  ICMJE
  • The Bloomberg Family Foundation, Inc.
  • Ifakara Health Institute
  • Pontificia Universidad Javeriana
Investigators  ICMJE
Principal Investigator: 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
PRS Account Johns Hopkins Bloomberg School of Public Health
Verification Date December 2018

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP