Table 1.

Classification of Human Immunodeficiency Virus Infections^a

	Infections, No.
Infection Type and Classification Group	CAB Arm (n= 4)	TDF/FTC Arm (n = 36)
Baseline	1	0
HIV positive at study enrollment	Case A1
Incident	3	36
No recent CAB exposure	Cases B1 and B2
Infected during the CAB injection phase	Case DX
Inconsistent/poor TDF/FTC adherence		Cases E1-E35
Partial TDF/FTC adherence		Case E36

Abbreviations: CAB, cabotegravir; FTC, emtricitabine; HIV, human immunodeficiency virus; TDF, tenofovir disoproxil fumarate.

This table shows the system used to classify cases in the CAB and TDF/FTC arms. Groups were assigned based on study arm and timing of HIV infection/exposure to study drug. Each case was assigned a group letter and a case number (eg, case A1). Cases in the TDF/FTC arm are numbered based on the number of days between study enrollment and the first HIV-positive visit, from the longest (846 days [case E1] ) to the shortest (12 days [case E36]) interval.