Comparison of SMS and IVR Surveys in Tanzania

Sponsor
Johns Hopkins Bloomberg School of Public Health (Other)
Overall Status
Completed
CT.gov ID
NCT04506918
Collaborator
Ifakara Health Institute (Other)
6,483
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2
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Study Details

Study Description

Brief Summary

This study focuses on mechanisms to adapt the performance of interactive voice response (IVR) and short message service (SMS) surveys conducted in low-and middle-income (LMIC) setting (Tanzania) and evaluates how the two survey modalities (IVR and SMS) affect survey metrics, including response, completion and attrition rates.

Condition or Disease Intervention/Treatment Phase
  • Other: IVR survey
  • Other: SMS survey
N/A

Detailed Description

Using random digit dialing (RDD) sampling technique, participants will be randomized to one of two arms : 1) IVR or 2) SMS. Participants in the first study arm will receive an IVR survey. Participants in the second study arm will receive a SMS survey. The IVR and SMS questionnaires contain a set of demographic questions and one non-communicable disease (NCD) module (alcohol, or tobacco, or diet, or physical activity, or blood pressure and diabetes). We will examine contact, response, refusal and cooperation rates and demographic representativeness by each study arm.

Study Design

Study Type:
Interventional
Actual Enrollment :
6483 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Intervention Model Description:
Participants will be randomized to one of two arms : 1) IVR or 2) SMS. Participants in the first study arm will receive an IVR survey. Participants in the second study arm will receive a SMS survey.Participants will be randomized to one of two arms : 1) IVR or 2) SMS. Participants in the first study arm will receive an IVR survey. Participants in the second study arm will receive a SMS survey.
Masking:
Single (Outcomes Assessor)
Primary Purpose:
Other
Official Title:
Comparison of Short Message Service (SMS) and Interactive Voice Response (IVR) Mobile Phone Surveys for Non-communicable Disease Risk Factor Surveillance in Tanzania
Actual Study Start Date :
Oct 23, 2020
Actual Primary Completion Date :
Apr 30, 2021
Actual Study Completion Date :
Apr 30, 2021

Arms and Interventions

Arm Intervention/Treatment
Experimental: IVR survey

Participants will receive an IVR survey

Other: IVR survey
Participants will receive an IVR survey

Experimental: SMS survey

Participants will receive an SMS survey

Other: SMS survey
Participants will receive a SMS survey

Outcome Measures

Primary Outcome Measures

  1. Cooperation Rate #1 [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 the number of participants with complete interviews, P is the number of participants with partial interviews, and R is the number of participants with refusals and breakoffs.

  2. Response Rate #4 [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 the number of participants with complete interviews, P is the number of participants with partial interviews, R is the number of participants with refusals and breakoffs, and eU is the estimated eligible proportion of unknowns

Secondary Outcome Measures

  1. Refusal Rate #2 [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 the number of participants with refusals and breakoffs, I is the number of participants with complete interviews, P is the number of participants with partial interviews, and eU is the estimated eligible proportion of unknowns

  2. Contact Rate #2 [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 the number of participants with complete interviews, P is the number of participants with partial interviews, R is the number of participants with refusals and breakoffs, and eU is the estimated eligible proportion of unknowns

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
Yes
Inclusion Criteria:
  • Access to a mobile phone

  • Greater or equal to 18 years of age

  • Conversant in the Swahili language

Exclusion Criteria:
  • Less than 18 years of age

Contacts and Locations

Locations

Site City State Country Postal Code
1 Ifakara Health Institute Dar Es Salaam Tanzania

Sponsors and Collaborators

  • Johns Hopkins Bloomberg School of Public Health
  • Ifakara Health Institute

Investigators

  • Principal Investigator: Dustin Gibson, PhD, Johns Hopkins University Bloomberg School of Public Health
  • Principal Investigator: Honorati Masanja, PhD, Ifakara Health Institute

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
Johns Hopkins Bloomberg School of Public Health
ClinicalTrials.gov Identifier:
NCT04506918
Other Study ID Numbers:
  • 00007318 - abc
First Posted:
Aug 10, 2020
Last Update Posted:
Apr 26, 2022
Last Verified:
Apr 1, 2022
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by Johns Hopkins Bloomberg School of Public Health
Additional relevant MeSH terms:

Study Results

No Results Posted as of Apr 26, 2022