Table 2

Comparison of Ceiling item difficulty ratings with PROMIS PF-10 items (bolded font)

Much difficulty/ unable to do (%)

Much difficulty/ unable to do (%)


■ What do you think is your best time for running 1 mile now?

43

■ Row a rowboat

6

■ Running 10 miles?

41

■ Climb a ladder to trim a tree?

5

■ Running 5 miles?

32

■ How many minutes does it take for you to walk one mile?

5

■ Run at a fast pace for two miles?

27

■ Doing heavy work around the house like scrubbing floors, or lifting or moving heavy furniture?

5

■ Run/jog slowly for two miles?

20

Bending, kneeling, stooping?

3

■ Over a one-week period, how many times did you do any vigorous physical activity which made you breathe harder or puff and pant?

18

■ Dig a hole in the dirt with a shovel?

3

■ Doing strenuous activities such as backpacking, skiing, playing singles tennis, bicycling or jogging?

12

■ Trim a hedge?

3

■ Climb 15 flights of stairs (60 steps)?

11

Walking more than a mile?

3

■ Doing eight hours of physical labor?

10

■ Take a 20-minute brisk walk, without stopping to rest?

3

■ In the last week, what do you estimate was the total time that you spent doing vigorous physical activity?

9

■ Move a full garbage/recycle bin?

3

■ Push/move an empty refrigerator?

9

■ Hand wash/wax a car?

2

Doing vigorous activities, such as running, lifting heavy objects, participating in strenuous sports?

8

■ Do chores such as vacuuming or yard work?

1

■ Climb 10 flights of stairs (40 steps)?

7

Climbing 1 flight of stairs?

1

Lifting/carrying groceries?

1

Shampoo your hair?

0

Wash/dry your body?

0

Get on/off toilet?

0

Dress yourself, including shoelaces and buttons?

0


Comparison of item difficulty of the 26 new ceiling items (plain font) with PROMIS PF-10 Items (bolded font) arranged from highest to lowest percent of "With Much Difficulty/Unable to Do" responses.

Bruce et al. Arthritis Research & Therapy 2013 15:R144   doi:10.1186/ar4327

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