Usability in telemedicine systems - A literature survey.

•We expected that with the increase in telemedicine research and development, various usability methods are more equally employed among the included publications. This is not the case.•Questionnaires are the most common means for evaluating each type of telemedicine systems, and were found in 88 (69%) of all publications.•Older adults and end-users with cardiovascular conditions were among largest target end user groups.•Telemedicine related publications have been increasing in all continents.