Table 1.

Mapping questions.

ID	Questions	Rationale
MQa1	Which publication channels are the main targets for CHb research?	To identify where CH research can be found and to identify targets for publication of future studies
MQ2	How has the frequency of studies related to CH changed over time?	To identify the publication trends over time of CH literature
MQ3	What are the research types of CH studies?	To explore the different types of research reported in the literature concerning CH
MQ4	Are CH studies empirically validated?	To discover whether research on CH has been validated through empirical studies
MQ5	What are the approaches that were reported in CH research?	To discover the CH approaches reported in the existing CH literature
MQ6	What are the main topics and conditions in CH literature?	To identify the research areas and health conditions discussed in papers

^aMQ: mapping question.

^bCH: connected health.