Table 1.

CFIR domains and constructs, with aligning study entities

Domain (aligning study entity)	Construct
Intervention Characteristics (of the PCB outcome set)	- Intervention Source - Evidence Strength and Quality - Relative Advantage - Adaptability - Trialability - Complexity - Design Quality - Cost
Inner Setting (OCN practices)	- Structural Characteristics - Networks and Communications - Culture - Implementation Climate - Readiness for Implementation
Outer Setting (Dutch perinatal care)	- Patient Needs and Resources - Cosmopolitanism - Peer Pressure - External Policy and Incentives
Characteristics of Individuals (OCN stakeholders)	- Knowledge and Beliefs about the Intervention - Self-efficacy - Individual Stage of Change - Individual Identification with Organization - Other Personal Attributes
Process (aspects of implementing, delivering and evaluating the PCB outcome set)	- Planning - Engaging - Executing - Reflecting and Evaluating

Legend: PCB Pregnancy and childbirth; OCN Obstetric care network