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In total, 2787 patients were included in our study. Patients were stratified based on first-line regimen: 364 patients initiated D4T-based ART [D4T/3TC/efavirenz (EFV) or nevirapine (NVP)], 1453 patients initiated AZT-based ART (AZT/3TC/EFV or NVP) and 970 patients initiated TDF-based ART (TDF/3TC/EFV or NVP) from 2011 to 2015.
