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Table 3 Results of the item-total analysis and factor analysis

From: Validity and reliability of the Japanese versions of cognitive and behavioral scales for irritable bowel syndrome

 

25-item version

23-item version

Items

Item-total correlation

Factor loadings

Item-total correlation

Factor loadings

19. Not take advantage of opportunities due to bowel problems

0.720

0.785

0.727

0.786

16. Concern about lasting through events

0.802

0.781

0.817

0.782

23. Worry about losing control of bowels in public

0.810

0.770

0.812

0.768

12. Bowel problems interfere with feeling good about myself

0.761

0.769

0.763

0.769

14. Can’t concentrate due to pain

0.767

0.766

0.780

0.767

13. Worry about my bowel symptoms on a trip

0.789

0.763

0.800

0.763

9. I feel very down about my bowel symptoms

0.712

0.756

0.730

0.759

7. Frustrated by bowel symptoms

0.722

0.754

0.734

0.755

5. Bowel symptoms are agony

0.763

0.733

0.763

0.732

8. Pain will never go away

0.700

0.724

0.717

0.727

20. Symptoms make me feel out of control

0.686

0.724

0.693

0.726

11. Worry about not finding a bathroom when I need one

0.774

0.714

0.776

0.712

2. I’m always sick with bowel problems

0.686

0.705

0.688

0.705

4. Can’t function normally when sick with bowel problems

0.731

0.696

0.735

0.695

3. Symptoms are too much to handle

0.692

0.693

0.698

0.696

21. Bowel symptoms in restaurant

0.639

0.635

0.653

0.636

22. With frequent bathroom visits, others think something is wrong

0.668

0.627

0.663

0.622

15. Embarrassing to keep going to bathroom

0.611

0.581

0.607

0.576

25. Must get home when 1 have symptoms

0.553

0.541

0.563

0.542

1. Not getting to bathroom in time

0.483

0.490

0.489

0.491

17. Being late upsets me

0.567

0.480

0.541

0.472

24. Feeling guilt if I nurture myself

0.431

0.452

0.433

0.450

10. Passing gas in public

0.471

0.416

0.473

0.414

18. Hate making a fool of myself

0.389

0.313

-

-

6. Do my absolute best at everything

0.323

0.262

-

-

 

Eigenvalue

10.72

Eigenvalue

10.54

 

Variance (%)

42.87%

Variance (%)

45.85%