Comparison of SMS and IVR Surveys in Tanzania

Johns Hopkins Bloomberg School of Public Health

Status: Completed

Conditions: Noncommunicable Diseases; Surveys and Questionnaires

Treatments: Other: IVR survey; Other: SMS survey

Study type: Interventional

Funder types: Other

Identifiers

NCT04506918

00007318 - abc

Details and patient eligibility

About

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.

Full 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.

Enrollment: 6,483 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

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

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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6,483 participants in 2 patient groups

IVR survey

Experimental group

Description:

Participants will receive an IVR survey

Treatment:

Other: IVR survey

SMS survey

Experimental group

Description:

Participants will receive an SMS survey

Treatment:

Other: SMS survey