{"doc_desc":{"title":"Documentation:The international epidemiological databases to evaluate AIDS (IeDEA) in sub-Saharan Africa-2025","idno":"DDI.IeDEA.2004-2025","producers":[{"name":"Africa Health Research Institute","abbr":"AHRI","affiliation":"","role":""}]},"study_desc":{"title_statement":{"idno":"IeDEA.2004-2025","title":"The international epidemiological databases to evaluate AIDS (IeDEA) in sub-Saharan Africa-2025"},"authoring_entity":[{"name":"Dr Abraham Jacobus Herbst","affiliation":"Africa Health Research Institute"},{"name":"Prof. Willem Hanekom","affiliation":"Africa Health Research Institute"},{"name":"Prof. Janet Seeley","affiliation":"Africa Health Research Institute"},{"name":"Prof. Maryam Shahmanesh","affiliation":"Africa Health Research Institute"},{"name":"Dr. Guy Harling","affiliation":"Africa Health Research Institute"},{"name":"Dr. Mark Siedner","affiliation":"Africa Health Research Institute"}],"oth_id":[{"name":"Dickman Gareta","affiliation":"AHRI","email":"","role":"Research Data Management"},{"name":"Kathy Baisley","affiliation":"AHRI","email":"","role":"Statistics"},{"name":"Eugene Prenzler","affiliation":"AHRI","email":"","role":"IT infrastructure"},{"name":"Brendan Gilbert","affiliation":"AHRI","email":"","role":"IT infrastructure"}],"production_statement":{"producers":[{"name":"Africa Health Research Institute","abbr":"AHRI","affiliation":"","role":""}],"funding_agencies":[{"name":"Welcome Trust","abbr":"WT","role":"Funder"},{"name":"DSI-MRC South African Population Research Infrastructure Network","abbr":"SAPRIN","role":"Funder"},{"name":"South Africa Department of Health","abbr":"DoH","role":"Data Custodian"}]},"version_statement":{"version":"v4.0.0"},"study_info":{"keywords":[{"keyword":"HIV, Epidemiology, KwaZulu-Natal, Antiretroviral therapy, Hlabisa, Population Cohort","vocab":"Africa Health Research Institute","uri":"www.ahri.org"}],"topics":[{"topic":"HIV, Epidemiology, KwaZulu-Natal, Antiretroviral therapy, Hlabisa, Population Cohort","vocab":"Africa Health Research Institute","uri":"www.ahri.org"}],"abstract":"TIER.net <http://tier.net/> is an electronic patient management system that is used for monitoring and evaluation of HIV care and treatment programmes in government health facilities throughout South Africa. The system was designed as part of a 3-tier approach to implementing a full electronic medical records (EMR) system. This approach provides a flexible solution that allows facilities to transition towards EMR in stages, as their infrastructure improves, and resources become available. TIER.net <http://tier.net/> forms the second tier, whereby patient's paper clinical records are entered into a non-networked computer at the health facility and transferred periodically to a central database.\n\nThe TIER.net <http://tier.net/> database contains information on clinic visit attendance, laboratory results and ART dispensing records for all patients on ART. The system was implemented in uMkhanyakude district in 2013; patient records from all visits before 2013 were back captured into the system. AHRI has a memorandum of agreement with the Department of Health to receive the TIER.net <http://tier.net/> data for the 17 clinics in the Hlabisa health sub-district and Hlabisa hospital. A dedicated data entry clerk based in each clinic enters information from patients' paper clinical records into the TIER.net <http://tier.net/> system after each patient visit. Laboratory results are manually entered into TIER.net <http://tier.net/> after they have been received by the clinic (i.e. are not imported electronically from the National Health Laboratory Service (NHLS) system).\nCurrently, pre-ART visits are not recorded in TIER.net <http://tier.net/>, although modules to capture HIV testing and pre-ART care may be implemented in the future.","coll_dates":[{"start":"2004-01-01","end":"2025-09-20","cycle":""}],"nation":[{"name":"South Africa","abbreviation":"ZA"}],"geog_coverage":"Hlabisa sub-district, KwaZulu-Natal, South Africa","analysis_unit":"Individuals on ART at one of the 17 clinics from Hlabisa sub-district, uMkhanyakude district","universe":"Individuals from Hlabisa sub-district, KwaZulu-Natal, South Africa","data_kind":"Clinical Data"},"method":{"data_collection":{"sampling_procedure":"All individuals accessing ART treatment and care in the 17 clinics in Hlabisa sub-district, KwaZulu-Natal, South Africa","sources":[{"name":"","origin":"","characteristics":""}],"cleaning_operations":"Tier.Net data is processed and stored on servers under the physical control of AHRI until datasets are made available on the data repository. The data is de-identified and can then be downloaded for processing on the data user's computer.\n\nData is stored on industry-standard relational databases with data integrity and user authentication for access control. Data is replicated on at least a daily basis to the Durban site of the Institution to provide secure offsite storage of data. Transactional logs are backed up every 30 minutes to enable recovery of data in the event of equipment failure.\n\nAll users of the system are authenticated through individual passwords with minimum complexity and regular change rules (passwords must be at least eight digits, with a mix of small and capital letters, at least one numeric or non-alphabetic digit and changed at least every 45 days). AHRI uses industry standard malware and intrusion detection with at least annual penetration tests by a reputable outside security audit company."}},"data_access":{"dataset_use":{"cit_req":"Herbst, A. J., Hanekom, W., Seeley, J., Shahmanesh, M., Harling, G., & Siedner, M. (2025). The international epidemiological databases to evaluate AIDS (IeDEA) in sub-Saharan Africa-2025 [Data set]. Africa Health Research Institute.\nDOI: https://doi.org/10.23664/IEDEA.2004-2025","conditions":"Access to the data requires accurate completion of the online data access application form accessible on the AHRI Data repository(<https://data.ahri.org/>). Data users are required to abide by the data use conditions stipulated on the application for access to the data. Failure to do so may result in their data access privileges being revoked by the Data Custodian. In order to recognise the effort and intellectual contributions of AHRI investigators in producing and curating the data, users of AHRI data must acknowledge the source of the data and abide by the terms and conditions under which the data is accessed and must cite the dataset in publication using the citation provided as part of this documentation. All analytical datasets published on the AHRI Data Repository are assigned digital object identifier (DOIs) and the DOIs can be found on the Data Repository under Study Description tab - Access policy. AHRI data users are required to always cite the dataset using the relevant 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