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Table 2 Frequency and type of agreed judged problematic segments for Impairment items of the Ab-IAP (59-item).

From: Listening to patients: using verbal data in the validation of the Aberdeen Measures of Impairment, Activity Limitation and Participation Restriction (Ab-IAP)

Item

Number of participants with no identified problems

Judged problems1

Total problems

Struggled

Struggled but answered item correctly

Insufficient information

  

C

R

J

Rp

    

A01 How would you describe the pain you usually have from your joint?

19

0

0

0

1

1

5

4

1

A02 How often have you had severe pain from your arthritis?

18

1

0

0

1

2

2

1

2

A03* How often have you had pain in two or more joints at the same time?

20

0

0

0

0

0

1

1

0

A04 Does remaining standing for 30 minutes increase your pain?

20

0

0

0

0

0

3

3

1

A05 How active has your arthritis been?

18

2

0

0

0

2

6

4

2

A06 Have you been troubled by pain from your joint in bed at night?

20

0

0

0

0

0

0

0

0

A07 How long has your morning stiffness usually lasted from the time you wake up?

20

0

0

0

0

0

2

2

0

A08* Has pain from your joint kept you awake during your night-time sleep?

20

0

0

0

0

0

0

0

0

A9 Have you had any sudden, severe pain - 'shooting', 'stabbing' or 'spasms' - from the affected joint?

20

0

0

0

0

0

0

0

0

A10 Have you felt that your knee or hip might suddenly "give way" or let you down?

20

0

0

0

0

0

1

1

0

A11* What degree of difficulty do you have bending and rotating your affected joint?

20

0

0

0

0

0

1

1

0

A12 How severe is your stiffness after first wakening in the morning?

19

0

0

0

1

1

1

1

0

A13* How severe is your stiffness after sitting, lying or resting later in the day?

17

1

0

1

1

3

0

0

0

Total

251

4

0

1

4

9

22

18

6

  1. 1 C = Comprehension, R = Retrieval, J = Judgement, Rp = Response. * Items removed to form the Ab-IAP (35 item).