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Table 4 Item-factor loading matrices for section I.

From: An examination of the psychometric structure of the Multidimensional Pain Inventory in temporomandibular disorder patients: a confirmatory factor analysis

Items I II III IV V
3. Affects ability to work .73***     
4. Affects the amount of satisfaction from social activities .74***     
8. Affects ability to participate in social activities .59***     
9. Affects the amount of satisfaction from family related activities .73***     
12. Amount of suffering experienced because of pain .37**     
13. Affects family and marital relationships .65***     
14. Affects the amount of satisfaction from work 1.0***     
16. Ability to deal with problems during the past week -.25*     
17. Affects ability to do household chores .67 (e.f)     
5. Supportiveness of spouse in relation to pain problem   .70***    
10. Amount of spouse worry regarding pain problem   .62***    
15. Degree of spouse attentiveness to pain problem   1.0 (e.f)    
1. Level of pain at the present moment    .84 (e.f)   
7. Severity of pain during the past week    .71***   
18. Degree of irritability during the past week     .82 (e.f)  
20. Amount of tension or anxiety during the past week     .75 ***  
2. Interference with daily activities      1.0 (e.f)
  1. NOTE: *p ≤ .05 ** p ≤ .01 *** p ≤ .001;
  2. e.f = effect fixed.