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Table 2 Rotated factor pattern coefficients for variable solutions (25 items) of SCBS factors

From: Development and psychometric properties of a self-care behaviors scale (SCBS) among patients with rheumatoid arthritis

 

In the past year, how often have you done regularly the following activities for your arthritis? (By ‘regularly’ we mean roughly once a month)

 

Factors*

F1*

F2

F3

F4

F5

F6

F7

Sc-1

Exercised (including water exercise)

.919

      

Sc-6

Replaced higher-intense exercises with lower-intense options, in the case of having a mild pain after exercise

−.905

      

Sc-5

Stopped exercise when having severe joint pains after exercise

−.891

      

Sc-2

Exercised weekly with moderate intensity

.850

      

Sc-4

Balanced between rest and exercise periods, if needed

−.841

      

Sc-3

Exercised daily with moderate intensity

.792

      

Sc-21

Changed the dosage of your drugs or the time of taking them without informing your physician

 

.893

     

Sc-19

Taken your drugs regularly and based on your prescription

 

.882

     

Sc-20

Visited your physician regularly

 

.814

     

Sc-18

Used relaxation methods such as meditation

  

.777

    

Sc-17

Used methods to help control stress

  

.637

    

Sc-27

Used larger joints instead of smaller joints (e.g. pushing in a table by the hip joint instead of wrist joint)

  

.619

    

Sc-26

Taken supplements containing fish oil or omega-3 without consulting your physician

  

−.468

    

Sc-13

Avoided certain foods

   

.742

   

Sc-14

Used massage

   

.620

   

Sc-12

Taken food supplements, vitamins, or eaten special foods

  

.327

.508

   

Sc-9

Used joint protection, bracing, or splinting

   

.496

 

.369

 

Sc-10

Rested

    

.734

  

Sc-11

Adjusted your daily routine or work schedule

  

.307

 

.660

  

Sc-16

Talked with persons who are sympathetic

    

.610

  

Sc-7

Used a heated pool, tub, or shower

     

.696

 

Sc-8

Applied heat to parts of your body

     

.675

 

Sc-25

Used some facilities (like handles, armchair and so on) in toilet, bed room and bathroom to ease the processes of sitting down, standing up and walking.

     

.389

 

Sc-23

Used substances, like opium, to control pain.

      

.803

Sc-22

Smoked cigarette or hookah

      

.737

 

Initial Eigenvalues

5.51

2.68

2.56

1.36

1.24

1.18

1.07

Rotation sums of squares

4.71

2.47

2.02

1.88

1.69

1.56

1.26

Percent of variance explained

22.05

10.74

10.24

5.45

4.97

4.74

4.28

Cronbach α

.533

.85

.66

.60

.67

.68

.29

ICC (95% CI)

.75 (.72–.78)

.84 (.81–.88)

.86 (.82–.9)

.83 (.79–.86)

.81 (.78–.84)

.89 (.86–.92)

.91 (.89–.94)

  1. *F1 = Physical Activity; F2 = Medication; F3 = Stress Management/Others; F4 = Nutrition/Joints Protection; F5 = Management of Daily Activities; F6 = Pain Management; F7 = Tobacco/Opium Use; Extraction Method: Principal Component Analysis.; Rotation Method: Varimax with Kaiser Normalization