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Table 4 Demographic and clinical characteristics of SCD patients diagnosed according to the five different criteria

From: Frequency, sociodemographic, and neuropsychological features of patients with subjective cognitive decline diagnosed using different neuropsychological criteria

 

Historical SCD

Typical SCD

Comprehensive SCD

Liberal SCD

Conservative SCD

N (1268)

Mean (SD) when applicable

835 (65.9%)

418 (33.0%)

811 (64.0%)

208 (16.4%)

1031 (81.3%)

Sociodemographic Data

     

Sex male

37.7%

37.8%

37.7%

34.1%

37.6%

female

62.3%

62.2%

62.3%

65.9%

62.4%

Age

67.8 (9.6)

66.6 (9.6)

67.9 (9.4)

66.9 (9.0)

68.4 (9.5)

Education

10.6 (4.6)

10.7 (5.0)

10.3 (4.8)

11.3 (4.8)

10.0 (4.8)

Medical History

     

Family history of Neurocognitive Disorders

40.1%

42.1%

52.3%

48.1%

39.5%

Personal History of Psychiatric Disorders

43.4%

43.5%

42.3%

41.3%

43.1%

SCD-plus Variables

     

Decline in memory

85.9%

87.1%

85.8%

88.5%

86.1%

Age of onset ≥ 60

74.4%

73.0%

76.4%

79.3%

76.5%

Onset in the last 5 years

96.3%

95.7%

95.8%

95.7%

96.2%

Informant confirmation

40.6%

36.1%

41.6%

32.2%

44.1%

Concerns associated

78.7%

84.5%

77.4%

87.0%

76.1%

Absence of any SCD-plus

0.0%

0.0%

0.2%

0.0%

0.2%

Presence of 1–3 SCD-plus

32.2%

30.9%

31.3%

28.4%

30.4%

Presence of ≥ 4 SCD-plus

67.8%

69.1%

68.4%

71.6%

69.4%

Memory Complaints

     

SMC scale

10.0 (3.9)

9.9 (3.6)

9.8 (3.8)

10.1 (3.4)

9.7 (3.9)

GDS Item 10

66.0%

65.4%

65.0%

59.6%

65.1%

Global Cognition

     

MMSE

27.5 (1.9)

27.9 (1.8)

27.5 (2.0)

28.2 (1.6)

27.2 (2.2)

Activities of Daily Living

     

BDRS 1st Part

0.7 (0.7)

0.5 (0.7)

0.7 (0.7)

0.3 (0.6)

0.8 (0.8)

Psychiatric Symptoms

     

BDRS 3rd Part

2.1 (1.5)

2.0 (1.5)

2.1 (1.5)

1.9 (1.5)

2.0 (1.5)

GDS

4.9 (3.3)

4.8 (3.2)

5.0 (3.4)

4.3 (3.2)

4.9 (3.3)

Depression (records)

23.8%

23.7%

23.1%

20.7%

23.7%

  1. Abbreviations: BDRS, Blessed Dementia Rating Scale; GDS, Geriatric Depression Scale; MMSE, Mini-Mental State Examination; SD, standard deviation; SMC, Subjective Memory Complaints