Aust Crit Care
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This study sought to identify and describe the clinical and behavioural components (e.g. the what, how, when, where and by whom) of 'selective decontamination of the digestive tract' (SDD) as routinely implemented in the care of critically ill patients. ⋯ This study is the first to formally outline the full spectrum of clinical and behavioural aspects of SDD. It identified points in the delivery process where complex behaviours occur and outlined how SDD can be interpreted and applied variably in practice. This comprehensive specification allows greater understanding of how this intervention could be implemented in units not currently using it, or replicated in research studies. It also identified strategies required to adopt SDD and to standardise its implementation.