Table 2.

Timeline: REaCH^a development, training process, and feasibility study.

Period	Training phase	Details
April-May 2020	Training development	REaCH training developed for online delivery (using Moodle and mobile devices)
July 2020	Pretesting	REaCH training pretested with university-based professionals in Tanzania (n=11) and the United Kingdom (n=1) Online training delivery mode found to be acceptable
July-August 2020	Adaptation	REaCH training adapted to include: Use of WhatsApp Facilitator and trainee guides Cascade notes Introductory video Downloadable materials
August-September 2020b	Feasibility study (as reported in this paper)	REaCH training delivered to 12 tier 1 trainees, Ulanga District Training completed by 12 trainees Evaluation completed by 10 (83%) trainees
		Cascade training delivered by 9 (75%) trained tier 1 trainers to 63 tier 2 trainees
August 2020-March 2022	Trial	Stepped-wedge trial of REaCH training in Tanzania and Nigeria underway

^aREaCH: remote consulting in primary health care.

^bData collected and analyzed in this paper.