Box 2. Logic model summary (adapted from the published protocol).¹⁰

	Inputs	Processes and actions	Intended
	Inputs	Processes and actions	Changes	Outputs	Outcomes
Intervention	Contextualised counselling tool Training of private GPs and clinic assistants – technical and practical training	Quarterly counselling for mothers (child development, child nutrition, maternal mental health) Assessment and treatment of child developmental delays (may include referral)	Clinic staff knowledge, skills, and resources	ECD care delivered, as per protocol, at the clinics ECD care uptake by mothers	Reduced child developmental delays at 12 months of age
Both intervention and control arms	District endorsement Community advocates Child Growth Cards Infant weighing scale and infantometer	Recruitment of mother–child pairs referred by community advocates		Adequate participant recruitment and recording data