Table 1.

Elements of the review question according to the acronym SPIDER

Elements of spider	Elements of spider as applied to this study
S - Sample	Patients; mothers; women who had experienced childbirth
PI - Phenomenon of interest	Continuous support, intra-partum care; labour/labour support; companionship; doula; one-to-one care; emotional support
D - Design	Studies using qualitative and/or mixed research methods (with a qualitative component)
E - Evaluation	Experiences; perceptions; opinions; views
R - Research type	Semi-structured, in-depth or focus group interviews, case studies