Table 3.

Data collection, measures, data sources

Data element	Timeframe	Data source/ instrument	Data collected	Collected from
Brief demographic assessment	Baseline	Self-report	Sociodemographics (gender, age, education, economic and marital status, religion, etc.); prior access to health services (e.g., HIV testing, circumcision among men); HIV stigma; fertility desires and contraception (pregnancy status, number of living children, number of additional children wanted, contraceptive use)	• All individuals consenting to HBHCT and baseline questionnaire interview
Follow-up assessments	6 months, 12 months	Self-report Clinic recordsa	Linkage and time to HIV carea; co-trimoxazole and ART initiation & time to initiationa; short-term retention in carea; tuberculosisa; ARV adherencea; HIV disclosure; receipt of instrumental and emotional social support; HIV stigma (anticipated, enacted, internalized; subjective health status; perceived need for treatment; barriers to accessing care; health care system literacy; beliefs about traditional and western medicine; patient-provider relationship and clinic wait time; acceptance of HIV diagnosis; alcohol use; depression; positive and negative life events following HIV testing; intimate partner violence	• Intervention trial participants (intervention and control group)
Brief follow-up assessment	12 months	Self-report	Clinic attendance; CD4 results, taking co-trimoxazole and ART	• Viral load and CD4 only group
Biological measures	Baseline, 12 months	Laboratory report	• HIV status (baseline) • Viral load (baseline, 12 months) • CD4 cell count (baseline,12 months)	• Intervention trial participants (intervention and control group) • VL and CD4 only group
Clinic-level data	Twice monthly	Checklist	Drug stock-out: Availability of all ARVs and cotrimoxazole	• All participating HIV clinics
Costing data – service utilization	Ongoing (collected in program records and clinical data)	Program records Clinic records Log-book	• Receipt of HBHCT home visits, counseling visits, follow-up contacts • HIV care services (clinic visits, lab tests, ARVs)	• Intervention trial participants (intervention and control group)
Costing data – service unit costs	Year three of trial	Program accounts, micro-costing at HIV clinics	Intervention related costs – personnel time, consumables, infrastructure, overheads	• Study administration, participant HIV clinics
Costing data – patient costs	12 months	Self-report	Costs incurred by participants related to intervention and/or HIV care	• Intervention trial participants (intervention and control group)
Intervention fidelity	Daily	Electronic protocol checklist	Percentage of intervention sessions steps completed	• Intervention counselors

Note: ^a indicates follow-up assessment items measured through both participant self-report and clinic records. ARV: antiretroviral; HBHCT Home-based HIV counseling and testing; VL: viral load