Study	Reason for exclusion
Alexander 2011	Uncontrolled BA study, not re‐analysable as a time series (no graph)
Anonymous 2009	Could not be found
Artz 2011	Descriptive reliability study
Callaghan 1998	CBA study with only 1 intervention and 1 control site. Not re‐analysable as a time series.
Dufault 1995	Poor design: retrospective case study with no controls or comparison group
Fitch 1992	Poor design: retrospective case study with no controls or comparison group
Gracias 2008	Uncontrolled BA study that could not be re‐analysed as a time series
Greenwood 1998	Poor design: retrospective case study with no controls or comparison group
Hampton 2005	Uncontrolled BA study. Not re‐analysable as a time series (bundle intervention).
Johnson 2011	Descriptive study
Kavanagh 2006	Uncontrolled BA study that could not be re‐analysed as a time series
Lee 2009	Diagnosis not treatment was the focus of this RCT study. No reference to the evidence‐based features of the tool.
Lenz 2009	Uncontrolled BA study that could not be re‐analysed as a time series
Levin 2011	Only self reported outcomes in this RCT study
Martin 1994	Poor design: retrospective case study with no controls or comparison group
McKinley 2007	Nurses were not targeted separately and could not be separated from the rest of the staff
Robinson 1997	Poor design: retrospective case study with no controls or comparison group
Rutledge 1995	Poor design: retrospective case study with no controls or comparison group
Scheide 2007	Uncontrolled BA study that could not be re‐analysed as a time series
Sperhac 1994	Poor design: retrospective case study with no controls or comparison group
White 2010	Only self reported outcomes were reported in this RCT study
Whitney 2006	Could not be found

RCT: randomised controlled trial

BA: before and after study