Notes:

• Regional and country level aggregate data are generated from regional patient-level databases, using the IeDEA Data Exchange Standard (DES). All ART-naïve patients newly enrolling into HIV care from 2010 to present are included. The following patients are excluded from aggregate data measures: patients with incomplete data related to age, sex, and site of enrollment; patients with evidence of ART initiation prior to the date of enrollment; patients with less than 15 months between enrollment and database close; and patients known to have transferred to another site of care within 15 months of enrollment.
• Enrollment in HIV care: Date of enrollment in HIV care at IeDEA site.
• Median CD4 count at enrollment: Median CD4 count among patients with a CD4 count measure within 3 months of enrollment and no more than 30 days after ART initiation. For patients with >1 CD4 count, CD4 measure closest to enrollment date is used.
• ART initiation: Initiation of a combined regimen of antiretroviral medications within 7 days, 14 days, 30 days, and 12 months after enrollment.
• Viral load monitoring at 6 months (+/- 3 months) and 12 months (+/- 3 months) after enrollment.
• Viral suppression: Viral load <1,000 copies/mL among patients with a viral load measure at 6 months or 12 months after enrollment. Patients with no viral load monitoring are excluded from the measures. For patients with >1 viral load measure at 6 months or 12 months after enrollment, the lowest viral load measure is used.