Study protocol: realist evaluation of effectiveness and sustainability of a community health workers programme in improving maternal and child health in Nigeria

Table 2 Key variables and considerations for economic evaluation

	Costs	Benefits	Action
Direct incremental	Direct programme	Change in	Use information to undertake an incremental cost-effectiveness analysis
	• Training, salaries, equipment	• Skilled deliveries
	• Cash transfers incl. admin	• ANC 4 visits
	Change in cost to users	• PNC attendances arising from the intervention
	• Transport, opportunity cost	• PNC attendances arising from the intervention
Spill-over effects	Change in costs to other service providers	Change in	Use information to modify costs where possible; inform sensitivity analysis
		• General facility activity
		• Service quality due to crowding, resource reallocation

ISSN: 1748-5908