Study design
TB
This is a pragmatic, parallel, cluster-randomized, controlled, superiority trial comparing a home-based versus a facility-based care delivery model for contact management. Clinics were randomized in a 1:1 ratio to conduct either home-based (intervention) or facility-based (standard of care) contact management. Randomization was stratified by country, local geography, and TB notifications. Given that the intervention is carried out by a clinic in its entirety, neither the patient, provider/outcome assessor nor the study team including data analysts will be masked to the study procedure.Routine program data will be collected by healthcare workers and abstracted by the study team retrospectively. Prior to trial implementation, a standardized child contact management form will be implemented in both settings to standardize data collection by all facilities in both arms. The tool was adapted from a previous trial by each country team and in conjunction with the parent IMPAACT4TB project [