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Table 2 Fit statistics of the Swedish CORE-OM with items ordered from low to high location (easy to difficult items)

From: Measurement properties of the Swedish clinical outcomes in routine evaluation outcome measures (CORE-OM): Rasch analysis and short version for depressed and anxious out-patients in a multicultural area

Item Item descriptor Domain Location SE FitRes Probability Thresholds
2 I have felt tense, anxious or nervous P − 1.218 0.054 − 2.65 0.0325 Organized
20 My problems have been impossible to put to one side P − 0.942 0.048 − 2.28 0.0024 Organized
13 I have been disturbed by unwanted thoughts and feelings P − 0.88 0.050 − 0.99 0.1124 Organized
5 I have been totally lacking in energy and enthusiasm P − 0.684 0.048 − 2.86 0.0004 Organized
4 I have felt OK about myself W − 0.581 0.051 0.451 0.6372 Organized
23 I have felt despairing or hopeless P − 0.581 0.047 − 6.67 0.000* Organized
27 I have felt unhappy P − 0.57 0.047 − 5.9 0.000* Organized
18 I have had difficulty getting to sleep or staying asleep P − 0.514 0.041 4.044 0.00035 Organized
30 I have thought I am to blame for my problems and difficulties P − 0.486 0.044 4.212 0.0581 Organized
28 Unwanted images or memories have been distressing me P − 0.482 0.045 − 0.11 0.0429 Organized
14 I have felt like crying W − 0.452 0.048 − 0.24 0.2855 Organized
17 I have felt overwhelmed by my problems W − 0.425 0.044 − 6.48  < 0.001* Organized
11 Tension and anxiety have prevented me doing important things P − 0.391 0.044 − 3.92  < 0.001* Organized
8 I have been troubled by aches, pains, or other physical problems P − 0.354 0.042 7.191  < 0.001* Disorganized
31 I have felt optimistic about my future W − 0.331 0.045 8.722  < 0.001* Disorganized
1 I have felt terribly alone and isolated F − 0.308 0.046 − 4.12  < 0.001* Organized
10 Talking to people has felt too much to me F − 0.272 0.046 − 1.18 0.1382 Organized
32 I have achieved the things I wanted to F − 0.23 0.05 0.406 0.2999 Organized
12 I have been happy with the things I have done F − 0.13 0.052 0.298 0.9485 Organized
7 I have felt able to cope when things go wrong F − 0.057 0.05 2.884 0.0249 Organized
25 I have felt criticized by other people F 0.008 0.045 2.671 0.0014 Organized
29 I have been irritable when with other people F 0.115 0.046 3.562 0.0007 Organized
3 I have felt I have someone to turn to for support when needed F 0.152 0.043 6.356  < 0.001* Organized
26 I have thought have no friends F 0.153 0.042 2.493 0.0156 Organized
15 I have felt panic or terror P 0.16 0.045 − 1.21 0.0252 Organized
19 I have felt warmth or affection for someone F 0.237 0.043 9.894  < 0.001* Organized
21 I have been able to do most things I needed to F 0.326 0.049 − 0.33 0.7865 Organized
24 I have thought it would be better if I were dead R 0.468 0.042 − 3.09 0.0057 Organized
33 I have felt humiliated or shamed by other people F 0.769 0.046 1.64 0.3683 Organized
9 I have thought of hurting myself R 0.923 0.046 0.829 0.3650 Disorganized
16 I made plans to end my life R 1.4 0.053 − 2.47 0.0578 Disorganized
34 I have hurt myself physically or taken dangerous risks with my health R 1.426 0.055 1.059 0.1568 Disorganized
22 I have threatened or intimidated another person R 1.804 0.066 1.244 0.0121 Disorganized
6 I have been physically violent to others R 1.945 0.086 0.523 0.0784 Disorganized
  1. Bold item numbers = items used in the CORE-10. P = Problems/symptoms, W = Well-being, F = Life/Social functioning, R = Risk of harm to self or others. FitRes = Fit residuals (in italics when outside desired range ± 2,5 and p-value (marked with an asterisk when significant)