Table 4 Comparison of multiple regression, bootstrap case and model based resampling SE and CI estimates from the OA Knee data

Variable

Model

N

SE

/SE

p

Lower

Upper

Length

Shape

Physical Function

OLS

165

13.3

3.07

4.31

0.001

7.19

19.32

12.14

1.00

Case

3.02

4.39

7.64

19.69

12.05

1.15

Model

3.05

4.35

7.49

19.49

12.00

1.08

Role Physical

OLS

177

-0.5

4.89

-0.11

0.915

-10.16

9.12

19.29

1.00

Case

4.39

-0.12

-8.60

8.51

17.11

1.12

Model

4.86

-0.11

-10.11

8.93

19.04

0.99

Bodily Pain

OLS

200

14.7

3.39

4.34

0.000

8.01

21.38

13.37

1.00

Case

3.41

4.30

7.81

21.41

13.60

0.98

Model

3.36

4.38

8.07

21.25

13.18

0.99

General Health

OLS

173

4.7

2.01

2.32

0.021

0.71

8.65

7.95

1.00

Case

2.03

7.26

0.69

8.69

8.00

1.01

Model

1.98

2.37

0.70

8.48

7.78

0.95

Energy

OLS

185

6.5

2.46

2.64

0.009

1.65

11.36

9.72

1.00

Case

2.50

2.60

1.75

11.63

9.88

1.08

Model

2.46

2.65

1.49

11.04

9.54

0.90

Social Function

OLS

194

9.1

3.70

2.46

0.015

1.82

16.41

14.59

1.00

Case

3.52

2.59

2.14

16.06

13.92

1.00

Model

3.65

2.50

1.72

16.09

14.37

0.94

Role Emotional

OLS

184

9.4

6.10

1.55

0.124

-2.60

21.48

24.08

1.00

Case

5.89

1.60

-1.90

20.85

22.75

1.01

Model

6.03

1.57

-2.37

20.90

23.27

0.97

Mental Health

OLS

191

1.1

2.15

0.51

0.613

-3.15

5.33

8.48

1.00

Case

2.32

0.47

-3.54

5.42

8.96

0.94

Model

2.14

0.51

-3.17

5.12

8.28

0.95