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Table 2 Dimensions, components, items, and maximal scores of the KOPS Brazilian version questionnaire

From: Knee osteoarthritis pre-screening questionnaire (KOPS): cross-cultural adaptation and measurement properties of the brazilian version—KOPS Brazilian version

Dimensions (2)

Components (6)

Items (20)

Score

Corresponding item in the questionnaire

Symptom

Functional pain (FP)

   
  

Walking

1

7.1

  

Stepping

1

7.2

  

Sitting down or getting up from a chair

1

7.3

  

Standing posture

1

7.4

 

Pain intensity in the last month (MP)

Last month

0–10

6.2 c

 

Pain intensity in the last year (YP)

Last year

0–10

6.2 a

 

Signs/other symptoms (SOS)

  
  

Morning stiffness

1

9

  

Position stiffness

1

10

  

Swelling

1

11

  

Creaking

1

12

  

Knee extension

1

13

  

Deformity

1

14

Risk factors

Biological risk (BR)

   
  

Age interval

6

Age (years)

  

Menopause

1

Menopause (yes/no)

  

BMI classification

6

BMI classification**

 

External risk (ER)

   
  

Lower limb injury

1

3

  

Job posture:

  
  

Predominantly standing

standing: stand position

1

4a

  

Predominantly squatting position

1

4b

  

Predominantly sitting

1

4c

  

Sports volume

7

5

Years of practice multiplied by weekly frequency (average)]

KOPS Brazilian version total score

 

54

 
  1. *0 - Less than or equal to 39 years old; 1–40 to 49 years; 2–50 to 59 years; 3–60 to 69 years; 4–47 to 79 years; 5–80 to 89 years; 6 - Greater than or equal to 90 years old. **1 - Underweight; 2 - Normal weight; 3 - Overweight; 4 - Grade 1 obesity; 5 - Grade 2 obesity; 6 - Grade 3 obesity