Table 2.

Pre-defined categories and data driven sub-themes identified.

Pre-defined categories	Data driven sub-themes
Adaptation	Culture Stakeholder engagement Delivery mode Piloting of materials
Integration	Types of integrated services Barriers to integration Benefits to integration
Manuals	Layout of the manuals Content of the material
Curricula	Format/structure of the curriculum Content of the curriculum Development of new content and/or curricula
Training process	Quality of lead trainers (train-the-trainers) Duration (length of time) Mode of delivery
Implementation	Stakeholder engagement Relationships with families Communication Working relationship Cultural norms Impact on families Material costs Material procurement Geography and climate Scaling
Workforce	Compensation Supervision Turnover Workload Gender Profile Benefits (of the program) to workforce
Monitoring & evaluation (Supervision)	Structure of supervision Supervision of workforce Importance of supervision and mentorship Training of supervisors
Promoting play	Promoting play through training workshops and material/resources Promoting play during visits Importance/impact of play