Study	Reason for exclusion
Allahbadia 1992	No randomisation
Ballard 1981	No randomisation
Ben‐Meir 2009	Fetal demise > 20%
Caliskan 2005	Fetal demise > 20%
Caliskan 2009	Fetal demise > 20%
Carbonell 2008	Different primary outcomes
Dickinson 1998	Multiple pregnancies, previous uterine scar included
Dickinson 2002	Multiple pregnancies, previous uterine scar, fetal death included
Dickinson 2003	Multiple pregnancies included, previous uterine scar included
Feldman 2003	27% of the women did not meet the inclusion criteria
Frydman 1988	Pre‐treatment trial
Ghorab 1998	Fetal demise > 20%, cervix dilatation before treatment
Ghosh 1980	Authors excluded women with incomplete abortion
Gilbert 2001	Simple randomisation
Goswami 1982	No randomisation
Guix 2005	Concealment score: C
Herabutya 2001	Odd and even number randomisation, biased and concealment score C
Hidar 2001	Inclusion of fetal death, premature rupture of membranes
Hill 1991	No randomisation
Ho 1993	Mifepristone pre‐treatment trial
Jain 1994	Fetal demise > 20%, live fetuses received a lethal cardiac injection
Jain 1999	Fetal demise included
Jansen 2008	Cervical dilatation
Jarnbert 1999	Cervical ripening
Kamali 1998	No randomisation
Kapp 2007 (2)	Fetal demise > 20%
Klinte 1983	No randomisation
le Roux 2002	Trilostane and danazol as pre‐treatments to misoprostol
Manabe 1981	Inclusion of quinine
Munthali 2001	Fetal demise > 20%
Nigam 2006	Simple randomisation
Niromanesh 2005	Concealment allocation: C
Nor Azlin 2006	Cervical dilatation
Nuthalapaty 2005	Use of catheter which was left in place during treatment to promote cervical ripening
Olund 1979	No randomisation
Owen 1996	First dilatation with hygroscopic dilatators and oxytocin infusion
Owen 1999	Women received laminaria for cervical ripening
Perry 1999	Complex and unconventional regime, use of laminaria and cardiac injection
Pulkkinen 1980	No randomisation
Ragab 1976	No primary outcomes could be read off the tables
Ramsey 2004	Cervical dilatation
Shukla 1984	No randomisation
Sørensen 1986	Open list of random numbers
Thong 1993	No randomisation
Thong KJ, Baird 1992	Dilapan laminaria tents, cervical dilatation
Wong 1996	Pre‐treatment trial
Yapar 1996	Fetal demise > 20%
Yilmaz 2007	Fetal demise > 20%