Table 1 Definition of inclusion and exclusion criteria

Setting-based criteria

•Outpatient

•Home care setting (e.g. SLC, skilled nursing facilities, long-term care facilities)

•Intensive Care Unit

•Hospital

•Rehabilitation

Patient-based criteria

•Age ≥ 18

•Age < 18

Topic-based/ phenomena-related criteria

•HMV

•Hygiene management

•Studies with focus on changes of pulmonary functions

•Studies with primary focus pharmacological testing, e.g. antibiotics

Study design criteria

•Qualitative research

•Quantitative research

•Mixed methods research

Publication type criteria

•Language: German and English

•Abstracts, Letters, Editorials

•Reviews

•Development of instruments

•Medical case studies

•Expert opinion

•Policy/ legal documents