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Table 5 Survival analyses using binary logistic regression predicting likelihood of Mild Cognitive Impairment (MCI) stability (coded as 1) (n = 64)

From: Preliminary evidence for an increased likelihood of a stable trajectory in mild cognitive impairment in individuals with higher motivational abilities

Variable

B

SE

P Value

OR

95% CI

Model 1

 Follow-up 1

−1.24

0.66

< 0.001

0.289

0.153–0.546

 Follow-up 2

−1.85

0.59

< 0.001

0.157

0.065–0.379

 Follow-up 3

−1.78

0.56

< 0.001

0.168

0.064–0.436

 Motivational abilities a

−0.53

0.36

0.040

0.587

0.353–0.976

Model 2

 Follow-up 1

−0.52

0.92

0.572

0.596

0.099–3.582

 Follow-up 2

−1.85

1.05

0.078 c

0.157

0.020–1.233

 Follow-up 3

−0.76

1.01

0.454

0.468

0.064–3.413

 Motivational abilities a

−0.65

0.33

0.052 c

0.524

0.273–1.005

 Age

0.33

0.33

0.323

1.389

0.725–2.661

 Sex (0 = male, 1 = female)

−0.53

0.60

0.376

0.589

0.182–1.902

 Children (number)

0.67

0.30

0.028

1.954

1.076–3.547

Model 3

 Follow-up 1

−1.07

1.02

0.294

0.345

0.047–2.519

 Follow-up 2

−2.34

1.13

0.038

0.096

0.011–0.880

 Follow-up 3

−1.27

1.10

0.247

0.280

0.032–2.414

 Motivational abilities a

−0.74

0.35

0.036

0.477

0.239–0.952

 Age

0.13

0.36

0.727

1.135

0.558–2.308

 Sex (0 = male, 1 = female)

−0.54

0.60

0.372

0.584

0.179–1.902

 Children (number)

0.73

0.32

0.022

2.082

1.109–3.908

 Executive function b

0.02

0.01

0.196

1.016

0.992–1.042

Model 4

 Follow-up 1

−0.11

1.89

0.955

0.899

0.022–36.773

 Follow-up 2

−1.46

1.91

0.446

0.233

0.005–9.854

 Follow-up 3

−0.35

1.93

0.854

0.702

0.016–30.550

 Motivational abilities a

−0.66

0.34

0.051 c

0.515

0.264–1.003

 Age

0.31

0.34

0.374

1.358

0.692–2.667

 Sex (0 = male, 1 = female)

−0.58

0.64

0.360

0.559

0.161–1.940

 Children (number)

0.70

0.32

0.031

2.003

1.066–3.763

 Education (years)

−0.03

0.11

0.804

0.973

0.781–1.212

Model 5

 Follow-up 1

−0.07

0.96

0.940

0.930

0.141–6.120

 Follow-up 2

−1.36

1.09

0.213

0.257

0.030–2.181

 Follow-up 3

−0.17

1.07

0.876

0.845

0.103–6.941

 Motivational abilities a

−0.63

0.33

0.060 c

0.534

0.277–1.028

 Age

0.16

0.38

0.684

1.169

0.551–2.479

 Sex (0 = male, 1 = female)

−0.45

0.62

0.470

0.638

0.188–2.161

 Children (number)

0.73

0.33

0.024

2.084

1.100–3.947

 MCI amnestic (0 = amnestic, 1 = non-amnestic)

−1.47

0.62

0.018

0.230

0.068–0.773

Model 6

 Follow-up 1

−0.79

1.45

0.584

0.452

0.026–7.749

 Follow-up 2

−1.35

1.64

0.408

0.258

0.010–6.381

 Follow-up 3

−0.14

1.58

0.931

1.146

0.052–25.359

 Motivational abilities a

−0.50

0.49

0.303

0.606

0.233–1.574

 Age

0.78

0.52

0.135

2.181

0.784–6.064

 Sex (0 = male, 1 = female)

−0.38

0.92

0.683

0.687

0.113–4.163

 Children (number)

0.90

0.48

0.060 c

2.455

0.963–6.255

 Cardiovascular risk factors

−3.29

1.59

0.038

0.037

0.002–0.837

  1. The bold values indicate a statistically significant correlation with a p-value less than 0.05
  2. B coefficient, CI confidence interval, MCI mild cognitive impairment, OR odds ratio, p level of significance, SE standard error
  3. a Composite measure including informant-rated motivational abilities at baseline (t1)
  4. b Interference score of the Stroop Color-Word Test
  5. c marginally significant