Table 1.

Main inclusion and exclusion criteria for studies selected in the review

Main Criteria	Specific Criteria
Inclusion:
Scope	Focus on: i) maternal continuum of care, or ii) adequacy of maternal healthcare service, or iii) the incorporation of quality into maternal continuum of care implementation or measurement, or iv) quality of care for maternal health within a continuum of care context
Population	Studies are focused on women of reproductive age Studies can also include perinatal population (maternal and neonatal health if they are relevant in scope
Setting	Observational studies: Low and middle income countries Theoretical studies: relevance to scope Setting may include community care if discussed in terms of continuum of care or integration into the health system Studies may be based in health systems, both health system and community care context, community care or population care (where relevant in scope)
Outcome Variables	The study is focused on continuum of care in maternal health, and other conceptual and theoretical approaches in reproductive health and maternal, neonatal, and child health is relevant. Non-maternal health indicators and models of continuum of care are outside the scope of this study
Time Period	No publication date limit
Language	Articles originally written in English, or an English translation from the original language if available
Exclusion:
Study design	Opinion pieces/commentaries/letters to editors within inclusion scope
Scope	General maternal health service access and utilization literature outside of inclusion scope

Criteria guidelines based on [56]