Table 3 Pain Catastrophizing Scale factor structure by Principal Components Analysis with loadings (n = 90)

11

I keep thinking about how badly I want the pain to stop

0.79

10

I keep thinking about how much it hurts

0.78

8

I anxiously want the pain to go away

0.72

9

I can’t seem to keep it out of mind

0.67

0.43

6

I become afraid that the pain may get worse

0.57

0.32

13

I wonder whether something serious may happen

0.89

1

I worry all the time whether the pain will end

0.49

0.61

7

I think of other painful experiences

0.37

0.52

12

There is nothing I can do to reduce the intensity of the pain

0.87

4

It’s awful and I feel that it overwhelms me

0.60

0.64

2

I feel I can’t go on

0.33

0.63

5

I feel I can’t stand it any more

0.57

0.61

3

It’s terrible and I think it’s never going to get any better

0.52

0.54