| Study | Reason for exclusion |
|---|---|
| Adelman 2013 | No data on incidence of WSS |
| Askarian 2011 | No data on incidence of WSS |
| Astrom 2013 | No data on incidence of WSS |
| Avansino 2011 | No data on incidence of WSS |
| Barusk 2011 | No data on incidence of WSS |
| Barzallo 2013 | No data on incidence of WSS |
| Beckingsale 2011 | No data on incidence of WSS, no intervention evaluated |
| Bergs 2013 | Commentary, no primary data |
| Bittle 2011 | Commentary, no primary data |
| Blanco 2009 | No data on incidence of WSS |
| Borchard 2012 | Systematic review with no data on incidence of WSS |
| Chassin 2011 | No data on incidence of WSS |
| Clarke 2007 | No data on incidence of WSS |
| Clarke 2013 | No data on incidence of WSS |
| Cohen 2010 | No data on incidence of WSS |
| de Vries 2010 | No data on incidence of WSS |
| Garnerin 2008 | No data on incidence of WSS |
| Gerriste 2008 | No data on incidence of WSS |
| Giles 2006 | No data on incidence of WSS |
| Haugan 2013 | No data on incidence of WSS |
| Haynes 2009 | Before and after study; no data on incidence of WSS |
| Knight 2010 | No data on incidence of WSS |
| Knusden 2013 | Commentary, no primary data |
| Ko 2011 | No data on incidence of WSS |
| Kwaan 2006 | No intervention evaluated, descriptive case series only |
| Liou 2014 | No data on incidence of WSS |
| Longo 2012 | No data on incidence of WSS |
| Masud 2010 | No data on incidence of WSS |
| Otake 2012 | No data on incidence of WSS |
| Panesar 2011 | No data on incidence of WSS |
| Rhodes 2008 | No data on incidence of WSS |
| See 2011 | No data on incidence of WSS |
| Seiden 2006 | Case series |
| Stahel 2010 | Case series |
| Thakkar 2012 | No data on incidence of WSS |
| Treadwell 2014 | No data on incidence of WSS |
| van Klei 2012 | No data on incidence of WSS |
| Yang 2007 | ITS study with insufficient data points (fewer than 3 data points before intervention) |
ITS: interrupted time series; WSS: wrong‐site surgery.