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Table 1 Team-ratified changes for the IVON study design based on formative findings

From: Intravenous versus oral iron for iron deficiency anaemia in pregnant Nigerian women (IVON): study protocol for a randomised hybrid effectiveness-implementation trial

Original study design

Formative assessment findings

Adjusted study design

CFIR category of change

No standard script for patient counselling by healthcare workers

Threat of misinformation and conspiracy theories

Standard patient information script to be used for all IV iron administrations

• Individuals involved

Participants only receive a signed consent form

Important to provide clear, standard reference information for both participants and family members

Participants and family to receive an illustrated flyer in simple English or local language describing the IV iron procedure, uses, and benefits

• Individuals involved

• Outer setting

Expert trainers provide training only at baseline; step-down training thereafter

HCWs need expert periodic training given the novelty of the intervention

Expert trainers to provide both baseline and periodic refresher training to HCWs every 6 months

• Inner setting

• Individuals involved

Study implementation focused on intervention, patient, healthcare workers, clinic

The study needs to consider all social levels for intervention success

Both study implementation and dissemination to be conducted with relevant socioecological model applications

• Implementation process