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Table 2 Convergent validity between instruments: correlation table (Spearman rank correlation coefficient)

From: Adaptation of the comprehensive rheumatologic assessment of frailty (CRAF) as a multidimensional frailty screening tool in patients with rheumatoid arthritis in Vietnam

 

FP

BMI

DAS-28-CRP

HAQ-DI

Age

CRAF

0.816**

-0.121*

0.293**

0.659**

0.266**

FP

< 0.001

0.015

− 0.091

0.067

< 0.001

0.279**

0.008

< 0.001

0.637**

< 0.001

< 0.001

0.170**

0.001

BMI

  

-0.065

0.195

0.017

0.735

-0.021

0.681

DAS28-CRP

   

0.475**

< 0.001

0.119*

0.028

HAQ-DI

    

0.240**

< 0.001

  1. CRAF: Comprehensive Rheumatologic Assessment of Frailty
  2. DAS28-CRP: Disease Activity Score in 28 joints, C reactive protein version
  3. FP: Fried phenotype
  4. BMI: Body Mass Index
  5. HAQ-DI: Health Assessment Questionnaire Disability Index
  6. **Correlation is significant at 0.01 level (2-tail)
  7. * Correlation is significant at 0.05 level (2-tail)
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BMC Rheumatology

ISSN: 2520-1026

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