Study	Reason for exclusion
Aghilinejad 2014	Wrong patient population
Andersen 2010	Wrong intervention
Baker 2013	Wrong study design
Bergman 2018	Wrong population
Bernaards 2006	Wrong intervention
Bernaards 2008	Wrong intervention
Bernaards 2011	Wrong intervention
Blangsted 2008	Wrong intervention
Blasche 2013	Wrong intervention
Brendbekken 2016	Wrong intervention
Carr 2013	Wrong intervention
Carr 2016	Wrong intervention
Castagnoli 2015	Wrong intervention
Chung 2009	Wrong study design
Cristancho 2012	Wrong study design
Curwin 2013	Wrong study design
Dahl 2001	Wrong patient population
delPozo Cruz 2012	Wrong intervention
delPozo Cruz 2013	Wrong intervention
Denis 2012	Wrong intervention
Doda 2015	Wrong intervention
Driessen 2011	Wrong intervention
Dugan 2006	Wrong study design
Ebara 2008	Wrong study design
Engelen 2014	Wrong study design
Esmaeilzadeh 2014	Wrong intervention
Estabrooks 2011	Wrong intervention
Fazioli 2004	Wrong intervention
Fewster 2017	Wrong study design
Gao 2016	Wrong patient population ‐ mixture of participants with and without baseline pain
Gerr 2005	Wrong intervention
Grunseit 2012	Wrong study design
Hillsdon 2002	Wrong intervention
Husemann 2009	Wrong intervention
Irmak 2012	Wrong intervention
Jay 2014	Wrong study design
Jay 2015	Wrong intervention
Jay 2016	Wrong intervention
Kilpikoski 2009	Wrong intervention
Kline 2017	Wrong outcome
Levanon 2012	Wrong intervention
Levanon 2012a	Wrong intervention
Loisel 1997	Wrong intervention
Mackey 2011	Wrong study design
McDonough 2011	Wrong setting
Mills 2011	Wrong setting
Pedersen 2009	Wrong intervention
Phattharasupharerk 2018	Wrong intervention
Pozo Cruz 2012	Wrong intervention
Robertson 2008	Wrong intervention
Robertson 2013	Wrong intervention
Robertson 2017	Wrong study design
Roemmich 2014	Wrong intervention
Shnayderman 2013	Wrong setting
Sihawong 2014	Wrong intervention
Sjogaard 2012	Wrong intervention
Spekle 2010	Wrong intervention
Suni 2017	Wrong intervention
Szeto 2015	Wrong intervention
Thorp 2014	Wrong intervention
Tronarp 2018	Wrong study design
vanSluijs 2005	Wrong patient population
Wang 2014	Wrong study design
Wollesen 2017	Wrong study design