Table 2

Data collection method, participants and data collected

Method	Participants	Total number in six sites	Data collected
Observation	CHWs and supervisors while conducting their daily work	126 days of observation	Descriptions of activities, interactions and clients.
FGD	CHW teams	12 FGDs (76 participants)	FGD: descriptions of activities and weekly and daily routines; resources available and needed; support from supervisors, peers, clinic and community; employment conditions; challenges of the programme. Self-administered questionnaire: age, years of training and service.
Interviews	Supervisors and facility managers	43 key informant interviews	Background, training responsibilities, weekly and daily pattern of CHWs; resources; successes and challenges.
	Community representatives	43 key informant interviews	Perceptions of the programme; acceptability to the community needs.
	Follow-up interviews with CHWs’ clients who were referred to the clinic during observations of household visits	74 household interviews	Client’s perception of the service, and events subsequent to the referral.