Table 2.

Example of coding structure applied in the analysis

Code	Categories	Framework level	Theme	Quotes
Less physical mobility; no fear of missing buses; not required to work in haste; drone made work easier	Reduce providers’ travel time, costs and fear	Individual level	Drone-based sample transport optimised connectivity and accessibility for people with TB and healthcare providers	“The use of drones has been very effective to me. There is less physical mobility for volunteers. We do not fear the risk of missing buses to go home or doing our work in haste. This has made the work easier.”