Table 1 The characteristics of the included studies.

From: The evolving etiologies of rapidly progressive dementia: a systematic review

Author, year

Country

Study period

Design

Criteria for dementia

Number

Female (%)

Age, years, mean/median

First symptom to dementia

Quality

Papageorgiou, 2009 [2]

Greece

2004-2006

Retrospective

DSM-4

68

31 (45.6)

65.5

≤ 1 year

8

Sala, 2012 [7]

Spain

1994-2009

Retrospective

DSM-4

49

27 (55.1)

72.4

≤ 1 year

9

Tagliapietra, 2013 [15]

Italy

2007-2012

Retrospective

NA

37

19 (51.4)

68.7

≤ 2 years

10

Chandra, 2017 [8]

India

2011-2016

Retrospective

NA

144

NA

NA

≤ 1 year

6

Zhang, 2017 [9]

China

2015-2016

Retrospective

DMS-5

310

131 (42.3)

55.9

≤ 2 years

7

Studart, 2017 [4]

Brazil

2012-2015

Retrospective

NIA-AA

61

39 (63.9)

48.0

≤ 2 years

8

Anuja, 2018 [3]

India

2008-2016

Retrospective

DSM-5

187

65 (34.8)

49.3

≤ 1 year

8

Day, 2018 [16]

USA

2006-2016

Retrospective

NA

67

42 (62.7)

68.3

≤ 2 years

7

Acosta, 2020 [17]

Argentina

2011-2017

Retrospective

DSM-4

104

55 (52.9)

64.5

≤ 2 years

9

Stamatelos, 2021 [18]

Greece

2012-2017

Retrospective

NA

47

25 (53.2)

65.0

≤ 1 year

9

Liu, 2023 [5]

China

2015-2019

Retrospective

NA

149

68 (45.6)

58.6

≤ 2 years

9

Satyadev, 2024 [19]

USA

2016-2022

Retrospective

DSM-5

155

NA

68.9

≤ 1 year

9

Shi, 2024 [20]

China

2019-2023

Retrospective

NA

323

149 (46.1)

60.6

≤ 1 year

8

  1. DSM diagnostic and statistical manual of mental disorders, NA not available, NIA-AA national institute on aging-Alzheimer’s association workgroup recommendations, USA United States of America.