Table 1 Baseline characteristics of subjects in two stages.

From: Screening and predicting progression from high-risk mild cognitive impairment to Alzheimer’s disease

Characteristics

Mean (SD) or N (%)

Stage I: ADNI-1 (N = 85)

Stage II: ADNI GO/2 (N = 374)

Age (year)

74.2 (6.9)

71.2 (7.4)

Gender

Male

61 (71.8)

206 (55.1)

Female

24 (28.2)

168 (44.9)

Marital status

Married

73 (85.9)

278 (74.3)

Divorced

2 (2.4)

43 (11.5)

Others

10 (11.8)

53 (14.2)

Education

Medium

0 (0.0)

2 (0.5)

High

85 (100.0)

372 (99.5)

ApoEε4

Absent

36 (42.4)

199 (53.2)

Present

49 (57.7)

175 (46.8)

ADAS-13 Trajectory Label

Low-risk

44 (51.8)

264 (70.6)

High-risk

41 (48.2)

110 (29.4)

MMSE Trajectory Label

High-risk

50 (58.8)

92 (24.6)

Low-risk

35 (41.2)

282 (75.4)

ADAS-13_bl

30.3 (17.0)

14.5 (6.4)

MMSE_bl

27.5 (1.6)

28.1 (1.7)

CDRSB_bl

1.6 (0.9)

1.4 (0.9)

Total

85

374

  1. ADAS-13, Alzheimer Disease Assessment Scale Cognitive 13 items; MMSE, mini mental state examination; ADAS-13_bl, Alzheimer Disease Assessment Scale Cognitive 13 items at Baseline; MMSE_bl, mini mental state examination at Baseline; CDRSB_bl, Clinical Dementia Rating Sum of Boxes at Baseline; SD, standard deviation.