Table 1. Methods of data collection.

Data collection method	Purpose	Sample
Client flow	To determine infrastructural barriers to PITC uptake	1 clinic, 1 intermediate referral hospital, 1 district hospital and 1 health centre
Register review	To document uptake of PITC after attending a facility for other reasons	All patient visits recorded in available patient registers on selected day, n = 728
FGDs	To explore provider perceptions of PITC delivery	5 FGDs – nurses from all sites, n = 29: 12 registered, 17 enrolled (1 male; 2 nurses participated in both IDIs and FGDs)
IDIs	To explore client flow and provider perceptions of PITC	14 nurses: 9 registered, 5 enrolled (2 males); 4 CCs (1 male)
KIIs	To understand policy-maker perceptions of PITC	Programme managers and quality assurance officers within the MoHSS, HIV programme donors, implementing partners, and training and laboratory institutions, n = 11 (5 males)

Note: All data collection was completed by T. Davyduke; topic guides were used for all interviews/discussions.

FGD, focus group discussion; IDI, in-depth interview; and KII, key informant interview.