Table 2. Additional information of the studies included in meta-analysis.

Author, Year	Diagnosis of schizophrenia	Diagnosis of bipolar disorder	Diagnosis of personality disorder	Previous history of violence	Lifetime history of alcohol or/and drug abuse	Measurements	Quality score (range 0–4)
Aberhalden et al, 2006 [44]	196	-	-	-	120	SOAS-R, BVC	4
Aberhalden et al, 2008 [45]	734	-	-	-	574	SOAS-R, BVC	4
Amore et al, 2008 [38]	151	26	85	105	117	OAS	4
Ash et al, 2003 [46]	56	-	49	-	57	Notspecified	3
Barlow et al, 2000 [37]	271	91	38	-	-	AIF	4
Beauford et al, 1997 [47]	75	71	-	-	-	OAS	3
Biancosino et al, 2009 [30]	472	206	168	-	117	Retrospective chart records	4
Bjorkdahl et al, 2006 [48]	15	14	9	-	-	SOAS-R	3
Boggild et al, 2004 [39]	0	-	-	30	76	nursing chart record	3
Bowers et al, 2003 [49]	169	-	-	-	-	PCC	3
Carr et al, 2008 [50]	1,473	543	733	318	1,729	AIF, OAS	4
Cohen et al, 2008 [51]	26	23	9	-	8	SOAS-R	3
Cookson et al, 2012 [52]	-	-	-	-	-	OAS	3
Daffern et al, 2010 [53]	-	-	-	-	-	OAS	3
Dumais et al., 2012 [54]	40	26	5	-	-	DASA	3
Eaton et al, 2000 [55]	33	-	-	40	39	Clinical record and hospital incident forms	1
Ehmann et al., 2001 [56]	53	9	-	35	28	MOAS	4
Grassi et al, 2001 [57]	632	136	216	-	31	SOAS	4
Hartvig et al, 2011 [58]	208	122	92	-	-	REFA	3
Ketelsen et al, 2007 [59]	512	236	102	-	924	SOAS	4
Krakowski&Czobor, 2004 [60]	-	-	-	-	-	MOAS	3
Lam et al, 2000 [61]	87	87	-	53	102	Retrospective records	2
Mauri et al, 2011 [62]	130	17	51	-	147	MOAS	4
Mellesdal, 2003 [63]	290	523	141	-	157	REFA	4
Nijman et al, 1997 [64]	-	-	-	-	-	SOAS	3
Nijman et al, 2002 [65]	50	-	-	-	-	SOAS-R	3
Oulis et al, 1996 [66]	88	11	-	-	-	MOAS	4
Owen et al, 1998 [67]	-	-	-	-	-	Violence and AggressionChecklist	4
Raja et al, 1997 [68]	110	82	32	-	34	nursing chart record	4
Raja et al, 2005 [69]	295	386	55	-	437	Modified version of the Morrison's scale	4
Ross et al, 2012 [70]	215	-	-	-	-	PCC	3
Saverimuttu& Lowe, 2000 [71]	73	34	18	-	21	Violent incident forms	2
Soliman&Reza, 2001 [40]	110	53	44	52	122	SOAS	3
Troisi et al, 2003 [72]	53	20	3	-	4	MOAS	4
Valeer et al, 2011 [73]	54	-	-	-	33	SOAS-R	4