Table 3 Multiple stepwise regression of FWS on mobility performance outcomes

 Step 1

.258

.001

  (constant)

3.81

.64

6.00

<.001

  FWS

.13

.17

.11

.76

.449

 Step 2

.004

.575

  (constant)

3.85

.64

5.99

<.001

  FWS

−.09

.19

.07

.47

.639

  frailty status dichot.

−.06

.11

−.08

−.56

.575

 Step 3

.055

.033

  (constant)

4.42

.68

6.53

<.001

  FWS

−1.14

.60

−.92

−1.92

.060

  frailty status dichot.

−.40

.19

−.54

−2.13

.037

  frailty stat. x FWS

.76

.35

.85

2.18

.033

 Step 1

.130

.070

  (constant)

1.98

.37

5.34

<.001

  FWS

.50

.10

.08

.49

.625

 Step 2

.001

.834

  (constant)

1.99

.38

5.29

<.001

  FWS

.04

.11

.06

.36

.718

  frailty status dichot.

−.01

.06

−.03

−.21

.834

 Step 3

.013

.350

  (constant)

2.14

.41

5.23

<.001

  FWS

−.28

.36

−.42

−.78

.437

  frailty status dichot.

−.10

.11

−.26

−.90

.373

  frailty stat. x FWS

.20

.21

.41

.94

.350

 Step 1

.379

<.001

  (constant)

70.39

11.43

6.16

<.001

  FWS

−1.40

3.14

−.06

−.45

.657

 Step 2

.032

.074

  (constant)

72.78

11.30

6.44

<.001

  FWS

−3.83

3.36

.16

−1.14

.259

  frailty status dichot.

−3.49

1.92

−.24

−1.82

.074

 Step 3

.006

.455

  (constant)

76.38

12.31

6.21

<.001

  FWS

−11.56

10.83

−.47

− 1.07

.290

  frailty status dichot.

−5.63

3.44

−.39

−1.64

.107

  frailty stat. x FWS

4.76

6.33

.27

.75

.455