. Author manuscript; available in PMC: 2019 Apr 1.

Published in final edited form as: Mov Disord. 2018 Mar 15;33(4):511–519. doi: 10.1002/mds.27330

Table 1.

Studies reporting the prevalence of PD-MCI

Population	Author	Year	Criteria for PD-MCI	Mean Age	N	Prevalence
Newly diagnosed	Author	Year	Criteria for PD-MCI	Mean Age	N	Prevalence
	Domellof³³	2015	IPMDS Task Force Criteria level II Modified – only one language task	70	136	41%
	Santangelo³⁵	2015	IPMDS Task Force Criteria level II	59	76	33%
	Pedersen³⁴	2017	IPMDS Task Force Criteria level II	68	178	20%
	Broeders³²	2013	IPMDS Task Force Criteria level II	66	123	35%
	Aarsland³⁶	2009	Non-demented, One z-score <1.5 SD below expected	68	196	19%
	Foltynie⁴³	2004	Impairment on at least one of three neuropsychological tests	71	159	(36%)*
	Muslimovic³⁷	2005	Score >2SD below normal on at least 3 tests.	66	115	24%
	Poletti³⁸	2012	Impairment on one or more tests	67	121	15%
	Weintraub³⁹	2015	<1.5 SD below normal on at least 2 tests	62	415	9%
Cross-sectional
Mean duration 11.7 years	Janvin⁴⁴	2003	Score >2 SD below control group on any one test from a battery	71	76	55%
Mean duration 5.5 +/− 4.5 years	Wang⁴²	2014	Impairment in any of 4 cognitive domains and not qualifying for dementia by IPMDS criteria.	65	901	22%
Duration not stated	Monastero⁴¹	2012	Score below normal on at least one test in a battery	69	290	54%
Mean duration 5.2 +/− 4.6 years	Marras⁴⁰	2013	IPMDS Task Force Level II	71	139	33%