Table 4 Exploratory factor analysis of the PDI
Scales | Items | Patients who were working (n = 607) | Patients who were not working (n = 224) | |||
|---|---|---|---|---|---|---|
Factor I (eigenvalue = 7.46) | Factor II (eigenvalue = 1.13) | Factor I (eigenvalue = 7.08) | Factor II (eigenvalue = 1.21) | Factor III (eigenvalue = 1.06) | ||
Daily activities | 1. House/garden work | .46 | .33 | .51 | .34 | .03 |
2. Different clothes | -.03 | .80 | .17 | .63 | -.06 | |
3. Change/wash clothes | .02 | .81 | .04 | .85 | -.05 | |
4. Hairdresser problem | -.05 | .79 | .32 | .49 | .01 | |
5. More baths | -.11 | .82 | -.30 | .96 | .07 | |
Work | 6a. Time off work | .83 | -.02 | - | - | - |
7a. Inhibit work | .81 | -.01 | - | - | - | |
6b. Less activity | - | - | .83 | .03 | -.05 | |
7b. Different activity | - | - | .70 | .18 | -.10 | |
8. Career affected | .86 | -.09 | .80 | -.21 | .04 | |
Personal relations | 9. Sexual difficulties | .75 | .00 | .87 | -.11 | -.06 |
10. Social relations | .73 | .07 | .81 | -.01 | .00 | |
Leisure | 11. Social activities | .61 | .23 | .69 | .15 | .01 |
12. Sport difficulties | .55 | .25 | .85 | -.07 | -.05 | |
13. Communal changing | .77 | -.11 | .51 | .01 | .41 | |
14. More smoke/drink | .62 | -.13 | -.06 | -.00 | .96 | |
Treatment | 15. Home messy/untidy | .60 | .22 | .52 | .14 | .12 |