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Table 5 Auto-correlation matrices for the eight dimensions of the SF-36 from RA patients in the Early RA study assessed at seven time points

From: The use of bootstrap methods for analysing health-related quality of life outcomes (particularly the SF-36)

a) Physical Function (n = 218)

e) Vitality (n = 216)

Week

0

8

16

24

32

40

48

Week

0

8

16

24

32

40

48

0

1.00

      

0

1.00

      

8

0.61

1.00

     

8

0.55

1.00

     

16

0.63

0.74

1.00

    

16

0.48

0.58

1.00

    

24

0.57

0.69

0.75

1.00

   

24

0.47

0.54

0.71

1.00

   

32

0.56

0.68

0.80

0.79

1.00

  

32

0.50

0.59

0.68

0.71

1.00

  

40

0.55

0.67

0.77

0.81

0.86

1.00

 

40

0.42

0.49

0.67

0.68

0.77

1.00

 

48

0.53

0.64

0.74

0.81

0.81

0.85

1.00

48

0.47

0.53

0.66

0.72

0.72

0.76

1.00

b) Role Physical (n = 212)

f) Social Function (n = 219)

Week

0

8

16

24

32

40

48

Week

0

8

16

24

32

40

48

0

1.00

      

0

1.00

      

8

0.40

1.00

     

8

0.44

1.00

     

16

0.35

0.53

1.00

    

16

0.43

0.53

1.00

    

24

0.29

0.39

0.57

1.00

   

24

0.39

0.55

0.63

1.00

   

32

0.19

0.30

0.56

0.67

1.00

  

32

0.36

0.46

0.63

0.70

1.00

  

40

0.34

0.42

0.52

0.60

0.61

1.00

 

40

0.38

0.51

0.58

0.64

0.71

1.00

 

48

0.27

0.40

0.59

0.67

0.64

0.71

1.00

48

0.34

0.45

0.58

0.64

0.71

0.71

1.00

c) Bodily Pain (n = 219)

g) Role Emotional (n = 206)

Week

0

8

16

24

32

40

48

Week

0

8

16

24

32

40

48

0

1.00

      

0

1.00

      

8

0.43

1.00

     

8

0.46

1.00

     

16

0.45

0.55

1.00

    

16

0.35

0.47

1.00

    

24

0.44

0.47

0.61

1.00

   

24

0.34

0.40

0.59

1.00

   

32

0.37

0.46

0.51

0.68

1.00

  

32

0.31

0.32

0.56

0.62

1.00

  

40

0.40

0.42

0.57

0.60

0.69

1.00

 

40

0.34

0.46

0.53

0.56

0.54

1.00

 

48

0.42

0.46

0.59

0.63

0.68

0.76

1.00

48

0.31

0.37

0.49

0.58

0.54

0.69

1.00

d) General Health (n = 209)

h) Mental Health (n = 218)

Week

0

8

16

24

32

40

48

Week

0

8

16

24

32

40

48

0

1.00

      

0

1.00

      

8

0.55

1.00

     

8

0.57

1.00

     

16

0.56

0.68

1.00

    

16

0.57

0.62

1.00

    

24

0.60

0.67

0.80

1.00

   

24

0.55

0.59

0.72

1.00

   

32

0.58

0.67

0.77

0.83

1.00

  

32

0.52

0.55

0.65

0.69

1.00

  

40

0.59

0.65

0.72

0.79

0.84

1.00

 

40

0.50

0.54

0.70

0.70

0.74

1.00

 

48

0.58

0.65

0.75

0.84

0.82

0.85

1.00

48

0.56

0.55

0.68

0.72

0.73

0.77

1.00

  1. Correlations are Pearson's product moment coefficient.