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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)
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