Table 1

Final models for the endpoint cognitive change (ANCOVA, backward selection)

Model 1

Model 2

Variable

F-ratio

Significance

F-ratio

Significance

Constant

0.125

p = 0.724

0.159

p = 0.690

Perceived social support

2.235

p = 0.135

2.114

p = 0.146

Gender

29.596

p = 0.000

29.584

p = 0.000

Age

5.747

p = 0.017

5.746

p = 0.017

Impaired ability to walk

3.398

p = 0.017

3.102

p = 0.026

Instrumental activities of daily living

51.832

p = 0.000

51.973

p = 0.000

Cognitive function at FU2

5.841

p = 0.016

5.497

p = 0.019

Body Mass Index

13.523

p = 0.000

13.796

p = 0.000

Cognitive inactivity

1.013

p = 0.314

Physical inactivity

0.516

p = 0.473

Dependent Variable: Cognitive Change (FU3-FU2)

Eisele et al. BMC Geriatrics 2012 12:9   doi:10.1186/1471-2318-12-9