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Table 3 ADAS-Cog scores and change from baseline up to 36 months for patients with MCI

From: Alzheimer’s Disease Assessment Scale–Cognitive subscale variants in mild cognitive impairment and mild Alzheimer’s disease: change over time and the effect of enrichment strategies

 

ADAS-Cog 3

ADAS-Cog 5

ADAS-Cog 13

 

Number of subjects

Score

CFB

Number of subjects

Score

CFB

Number of subjects

Score

CFB

MCI (non-enriched)

 Baseline/screen

382

8.23 ± 3.76

 

382

13.96 ± 6.17

 

382

15.23 ± 6.68

 

 Month 6

376

8.30 ± 4.14

0.01 ± 2.99

375

14.00 ± 6.68

−0.07 ± 4.01

375

15.28 ± 7.25

−0.07 ± 4.37

 Month 12

381

8.09 ± 4.42

−0.15 ± 3.09

380

13.72 ± 7.09

−0.23 ± 3.95

379

14.97 ± 7.83

−0.24 ± 4.49

 Month 24

382

8.94 ± 5.23

0.71 ± 3.56

382

15.09 ± 8.30

1.13 ± 4.87

382

16.57 ± 9.41

1.34 ± 5.68

 Month 36

169

9.02 ± 5.34

1.23 ± 4.00

168

15.11 ± 8.58

1.95 ± 5.58

168

16.89 ± 10.18

2.59 ± 6.89

MCI+ (enriched)

 Baseline/screen

206

9.43 ± 3.92

 

206

16.12 ± 6.28

 

206

17.52 ± 6.81

 

 Month 6

204

9.71 ± 4.28

0.23 ± 3.17

203

16.38 ± 6.75

0.14 ± 4.18

203

17.84 ± 7.22

0.19 ± 4.56

 Month 12

206

9.57 ± 4.63

0.14 ± 3.43

205

16.24 ± 7.21

0.16 ± 4.10

205

17.75 ± 8.01

0.28 ± 4.69

 Month 24

206

10.91 ± 5.42

1.48 ± 3.78

206

18.32 ± 8.49

2.21 ± 5.20

206

20.15 ± 9.85

2.63 ± 6.24

 Month 36

89

11.37 ± 5.72

2.55 ± 4.40

89

18.96 ± 9.00

3.82 ± 6.03

89

21.42 ± 11.01

5.02 ± 7.60

MCI− (biomarker − negative)

 Baseline/screen

176

6.82 ± 3.02

 

176

17.52 ± 6.81

 

176

12.55 ± 5.43

 

 Month 6

172

6.62 ± 3.25

−0.24 ± 2.75

172

17.84 ± 7.22

−0.31 ± 3.79

172

12.26 ± 6.03

−0.38 ± 4.12

 Month 12

175

6.35 ± 3.45

−0.50 ± 2.69

175

17.75 ± 8.01

−0.68 ± 3.73

174

11.69 ± 6.20

−0.85 ± 4.18

 Month 24

176

6.63 ± 3.88

−0.19 ± 3.06

176

20.15 ± 9.85

−0.11 ± 4.12

176

12.37 ± 6.80

−0.18 ± 4.51

 Month 36

80

6.40 ± 3.35

−0.25 ± 2.88

79

21.42 ± 11.01

−0.16 ± 4.15

79

11.78 ± 5.95

−0.15 ± 4.69

  1. ADAS-Cog Alzheimer’s Disease Assessment Scale–Cognitive subscale, CFB change from baseline, MCI mild cognitive impairment
  2. Data are presented as mean ± standard deviation. Increased score on ADAS-Cog indicates cognitive worsening