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Comparison of SMS, IVR, and CATI Surveys in Colombia

Comparison of Short Message Service (SMS), Interactive Voice Response (IVR), and Computer Assisted Telephone Interview (CATI) Mobile Phone Surveys for Non-communicable Disease Risk Factor Surveillance in Colombia

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04506931
Enrollment
5676
Registered
2020-08-10
Start date
2021-01-15
Completion date
2021-04-30
Last updated
2022-04-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Noncommunicable Diseases, Surveys and Questionnaires

Keywords

mobile phone surveys, interactive voice response, computer assisted telephone interview, short message service, non-communicable diseases

Brief summary

The objective of the study is to adapt and assess the feasibility, quality, and validity of short message service or 'text message' (SMS), interactive voice response (IVR), and computer assisted telephone interviews (CATI) for collecting information on noncommunicable disease (NCD) risk factors

Detailed description

Using random digit dialing (RDD) sampling technique, RDD participants will be randomized to one of the three arms: 1) SMS or 2) IVR or 3) CATI. Participants in the first study arm will receive an SMS survey. Participants in the second study arm will receive a IVR survey. Participants in the third study arm will receive a CATI survey. The IVR, SMS and CATI questionnaires contain a set of demographic questions and one NCD module (alcohol, or tobacco, or diet, or physical activity, or blood pressure and diabetes). The investigators will examine contact, response, refusal and cooperation rates and demographic representativeness by each study arm.

Interventions

Participants will receive a SMS survey

Participants will receive an IVR survey

OTHERCATI Survey

Participants will receive a CATI survey

Sponsors

Pontificia Universidad Javeriana
CollaboratorOTHER
Johns Hopkins Bloomberg School of Public Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)

Intervention model description

Participants were randomized to one of three mobile phone survey modalities: 1) SMS; 2) IVR; 3) CATI.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Access to a mobile phone * Greater or equal to 18 years of age * In Colombia, conversant in the Spanish language

Exclusion criteria

* Less than 18 years of age

Design outcomes

Primary

MeasureTime frameDescription
Cooperation Rate #1Through study completion, an average of one monthAs 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.
Response Rate #4Through study completion, an average of one monthAs 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

MeasureTime frameDescription
Refusal Rate #2Through study completion, an average of one monthAs 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
Contact Rate #2Through study completion, an average of one monthAs 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

Countries

Colombia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026