An interventional study of IVR survey and SMS survey in Surveys and Questionnaires and Noncommunicable Diseases, sponsored by Johns Hopkins Bloomberg School of Public Health. Completed at 1 site in Tanzania. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-04-26.
Sponsored by Johns Hopkins Bloomberg School of Public Health · Not applicable, Interventional, and Other
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.
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.
128 studies on the registry are indexed under Noncommunicable Diseases; 44 are open to participants now.
This study's enrollment of 6,483 is above the median of 600 across 84 interventional studies indexed under Noncommunicable Diseases.
Browse Noncommunicable Diseases studies →Johns Hopkins Bloomberg School of Public Health is the lead sponsor of 364 studies on the registry; 41 are open to participants now.
Of its 5 completed or terminated interventional studies of FDA-regulated products, 3 (60%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Participants will receive an IVR survey
Other: IVR survey
Participants will receive an SMS survey
Other: SMS survey
Participants will receive an IVR survey
Participants will receive a SMS survey
Cooperation Rate #1
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.
Time frame: Through study completion, an average of one month
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 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
Time frame: Through study completion, an average of one month
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 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
Time frame: Through study completion, an average of one month
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 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
Time frame: Through study completion, an average of one month
Plan to share: No
This study is completed, as verified in Apr 2022. You cannot join it, but the record below documents what was studied.
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Johns Hopkins Bloomberg School of Public Health