Study	Reason for exclusion
Abreu 2008	Case‐control design
Bustamente 2003	Case‐control methodology
Butt 2008	Community population
Cherbuin 2008	No original data
Cherbuin 2013	No original data ‐ review article
De Jonge 1997	Data not suitable for analysis
Dekkers 2009	Data not suitable for analysis
Diesfeldt 2007a	No dementia diagnosis reference standard
Diesfeldt 2007b	No original data ‐ repeat dataset
Ehrensperger 2010	Uses unvalidated (2‐year) IQCODE
Farias 2002	No dementia diagnosis reference standard
Finneli 2009	Data not suitable for analysis
Fuh 1995	Case‐control methodology
Hayden 2003	Small dataset; IQCODE administered to < 10 participants
Hénon 2001	Uses a delayed verification analysis
Isella 2002	Uses a delayed verification analysis
Isella 2006	Data not suitable for analysis
Jorm 1989	Data not suitable for analysis, and no dementia diagnosis reference standard
Jorm 1994	Community setting
Jorm 1996	Community setting
Jorm 1997	No original data
Jorm 2000	No dementia diagnosis reference standard
Jorm 2003	No original data
Jorm 2004	No original data ‐ review article
Kathriarachi 2001	Community setting
Khachaturian 2000	No IQCODE index test data
Krogseth 2011	Uses a delayed verification analysis
Larner 2010	Looks at diagnostic accuracy comparing 2 dementia types rather than dementia/no dementia dichotomy
Law 1995	Community setting
Li 2012	No dementia diagnosis reference standard
Louis 1999	Uses a delayed verification analysis
Mackinnon 2003	Community setting
Mimori 2010	No original data
Morales 1995	Community setting
Morales 1997	Community setting
Morales‐González 1992	Case‐control methodology
Ozel‐Kizel 2010	Case‐control methodology
Perroco 2009	Case‐control methodology
Potter 2009	Data not suitable for analysis
Razavi 2014	Case‐control methodology; data not available without added controls
Ritchie 1992	No IQCODE index test data
Rodriguez‐Molinero 2010	No dementia diagnosis reference standard
Rovner 2012	Data not suitable for analysis
Sanchez 2009	No dementia diagnosis reference standard
Schofield 2006	Data not suitable for analysis
Senanorong 2001	Community setting
Silpakit 2007	Case‐control methodology
Srikanth 2006	Community setting
Starr 2000	No dementia diagnosis reference standard
Thomas 1994	Non‐contemporaneous assessment of reference standard and index test
Tokuhara 2006	Primary‐care setting
Wierderholt 1999	Data not suitable for analysis
Wolf 2009	No dementia diagnosis reference standard
Yamada 2000	Community setting
Zhang 2003	Data not suitable for analysis
Zhou 2002	Case‐control methodology
Zhou 2003	No original data ‐ repeat dataset
Zhou 2004	No original data ‐ repeat dataset