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Table 2 Principal component analysis in clinical sample 1 ( n = 257)

From: The factor structure and psychometric properties of the Clinical Outcomes in Routine Evaluation – Outcome Measure (CORE-OM) in Norwegian clinical and non-clinical samples

  Principal components
CORE item # (sub-scale)1 1 2 3 4
5 (P) I have felt totally lacking in energy and enthusiasm .84    
15 (P) I have felt panic or terror .70    
11 (P) Tension and anxiety have prevented me doing important things .67    
2 (P) I have felt tense, anxious or nervous .66    
8 (P) I have been troubled by aches, pains or other physical
problems
.65    
18 (P) I have had difficulty getting to sleep or staying asleep .63    
17 (W) I have felt overwhelmed by my problems .62    
20 (P) My problems have been impossible to put to one side .60    
10 (F) Talking to people has felt too much for me .58    
23 (P) I have felt despairing or hopeless .58 .35   
14 (W) I have felt like crying .54    
13 (P) I have been disturbed by unwanted thoughts or feelings .53    
21 (F) I have been able to do most things I needed to .49 .35   
19 (F) I have felt warmth and affection for someone -.39 .79   
31 (W) I have felt optimistic about my future   .70   
9 (R) I have thought of hurting myself   .64   
4 (W) I have felt OK about myself   .63   
24 (R) I have thought it would be better if I were dead   .62   
12 (F) I have been happy with the things I have done   .61   
16 (R) I made plans to end my life   .57   .31
3 (F) I have felt I have someone to turn to for support when needed -.33 .53 .32  
32 (F) I have achieved the things I wanted to   .52   
27 (P) I have felt unhappy .33 .46   
7 (F) I have felt able to cope when things go wrong   .42   
1 (F) I have felt terribly alone and isolated   .39 .33  
25 (F) I have felt criticised by other people    .77  
33 (F) I have felt humiliated or shamed by other people    .74  
30 (P) I have thought I am to blame for my problems and difficulties   .36 .61  
26 (F) I have thought I have no friends    .55  
28 (P) Unwanted images or memories have been distressing me .33   .54  
6 (R) I have been physically violent to others     .77
22 (R) I have threatened or intimidated another person     .74
29 (F) I have been irritable when with other people .35    .48
34 (R) I have hurt myself physically or taken dangerous risks with my health     .46
Eigenvalues 12.2 1.9 1.8 1.7
Explained variance (%) 35.8 5.6 5.4 4.9
  1. Note. Total variance explained = 51.7 %. Component loadings < .30 are suppressed.
  2. 1Domain names: W = Subjective well-being, P = Problems/symptoms, F = Functioning, R= Risk.