Home / Central Data Catalog / ZAF_2017_SMSTB-RCT_V01_M

SMS Nudges as a Tool to Reduce Tuberculosis Treatment Delay and Pretreatment Loss to Follow-up: A Randomized Controlled Trial 2017-2018

South Africa, 2017 - 2018
Central
Adam Wagstaff
Created on October 21, 2019 Last modified October 21, 2019 Page views 1282 Download 5 Documentation in PDF Metadata DDI/XML JSON

Identification

Survey ID Number
ZAF_2017_SMSTB-RCT_v01_M
Title
SMS Nudges as a Tool to Reduce Tuberculosis Treatment Delay and Pretreatment Loss to Follow-up: A Randomized Controlled Trial 2017-2018
Country
Name Country code
South Africa ZAF
Study type
Other Household Health Survey
Abstract
This is the microdataset used in the paper "SMS nudges as a tool to reduce Tuberculosis treatment delay and pretreatment loss to follow-up. A randomized controlled trial". We fielded two SMS interventions in three Cape Town clinics to see their effects on whether people returned to clinic, and how quickly. One was a simple reminder; the other aimed to overcome “optimism bias” by reminding people TB is curable and many millions die unnecessarily from it. Recruits were randomly assigned at the clinic level to a control group or one of the two SMS groups (1:2:2). In addition to estimating effects on the full sample, we also estimated effects on HIV-positive patients.
Kind of Data
Clinical data [cli]
Unit of Analysis
Patient

Scope

Notes
The dataset includes: outcomes (whether the patient returned to get their TB test results and if so how quickly); information on demographics, education, housing, family circumstances etc.; intervention group assignment; HIV status; and whether the intervention was delivered correctly (an exclusion variable for the per-protocol analysis).

Coverage

Geographic Coverage
3 clinics in Greater Cape Town

Producers and sponsors

Primary investigators
Name Affiliation
Adam Wagstaff World Bank
Producers
Name Affiliation Role
Ronelle Burger Stellenbosch University Co-PI
Eddy Van Doorslaer Erasmus University Co-PI
Funding Agency/Sponsor
Name
World Bank
South Africa Development Fund
WHO Strengthening Implementation Grant
Erasmus Trust Fund - Research for Health Impact in Africa
Abdul Latif Jameel Poverty Action Lab
National Research Foundation SA

Sampling

Sampling Procedure
Patients not already being treated for TB arriving in TB waiting rooms of 3 clinics. Aimed to recruit > 90% of new patients over recruitment period. Inclusion criteria: Adult, provided consent, not already on treatment, waiting for a TB test or just had a TB test. Exclusion criteria: Adult, refused consent, already on treatment, not waiting for a TB test or just had a TB test. Recruitment was from 2 October 2017 until 15 December 2017. Fieldworkers continued visiting clinics and phoning patients until mid-February 2018 to collect data on patients’ return-to-clinic date, test results and treatment start date.

Data Collection

Dates of Data Collection
Start End
2017-10-02 2018-02-14
Data Collection Mode
Computer Assisted Personal Interview [capi]
Supervision
Multiple fieldworkers were used overseen by a project coordinator overseen in turn by co-PI Prof. Ronelle Burger. Fieldworkers collected initial and follow-up data in tablets, and uploaded the data to a central server. The project coordinator undertook the randomization to the control and two treatment groups as described in the paper.
Data Collection Notes
Initial data collected through CAPI interview at time of recruitment. Data on return-to-clinic date were obtained via fieldworker interactions with returning patients in the TB waiting room, conversations with clinic staff, and where necessary, phone follow-up conversations with patients and inspection of clinic records. HIV status was obtained by matching between our dataset and the PREHMIS and ETR.Net datasets as described in the paper. The data for the exclusion criteria for the per-protocol analysis were obtained from the records of the bulk SMS provider used to send the SMS messages,

Questionnaires

Questionnaires
CAPI interview at recruitment was based on a long questionnaire only a few questions from which were used in the present study. The questionnaire is therefore not attached to the current dataset.

Data Processing

Data Editing
Data-cleaning was done by staff at Stellenbosch University and the World Bank.
Other Processing
The analysis of the data was done primarily by Co-PI Adam Wagstaff.

Access policy

Contacts
Name Affiliation Email
Adam Wagstaff World Bank awagstaff@worldbank.org
Ronelle Burger Stellenbosch University rburger@sun.ac.za
Eddy van Doorslaer Erasmus University Rotterdam vandoorslaer@ese.eur.nl
Confidentiality
Before being granted access to the dataset, all users have to formally agree: 1. To make no copies of any files or portions of files to which s/he is granted access except those authorized by the data depositor. 2. Not to use any technique in an attempt to learn the identity of any person, establishment, or sampling unit not identified on public use data files. 3. To hold in strictest confidence the identification of any establishment or individual that may be inadvertently revealed in any documents or discussion, or analysis. Such inadvertent identification revealed in her/his analysis will be immediately brought to the attention of the data depositor.
Access conditions
- Public use files, accessible to all
Citation requirements
Wagstaff, A. (World Bank), Ronelle Burger (Stellenbosch University), and Eddy Van Doorslaer (Erasmus University). 2019. SMS Nudges as a Tool to Reduce Tuberculosis Treatment Delay and Pretreatment Loss to Follow-up; A Randomized Controlled Trial (SMSTB-RCT) 2017-2018. REF: ZAF_2017_SMSTB-RCT_v01_M. Downloaded from [url] on [date].

Metadata production

DDI Document ID
DDI_ZAF_2017_SMSTB-RCT_v01_M_WB
Producers
Name Abbreviation Affiliation Role
Development Economics Data Group DECDG The World Bank Documentation of the DDI
Date of Metadata Production
2019-03-27
DDI Document version
Version 01 (March 2019)