Table 3

Floor items

Much difficulty/ unable to do (%)

Much difficulty/ unable to do (%)


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

88

• Fasten buttons on a shirt or blouse?

25

Walking more than a mile?

81

• Put on your socks?

24

• Walk a block as quickly as you did five years ago?

78

• In the past year, how much weight have you lost unintentionally

24

• Cut your toenails?

70

• In the past year, how many times did you fall?

22

Do chores such as vacuuming or yard work?

66

• Type a sentence on a computer keyboard?

22

Bending, kneeling, or stooping?

65

• Chew and eat your food as quickly as you did five years ago?

20

• Compared to five years ago, is your normal walking speed: Faster, About the same, Slower, Much Slower, Unable to walk)

61

• Wash and dry your body?

18

Climbing one flight of stairs?

56

• Put on your shoes?

17

• Dress and groom yourself as quickly as you did five years ago?

56

• Put on a sweater or t-shirt over your head?

17

• What is the farthest distance you can walk by yourself, without any special equipment or help from others?

55

• Move about your residence?

16

Lifting or carrying groceries?

47

• Get on and off the toilet?

13

• Stand up from an armless straight chair?

40

• Squeeze another person's hand?

13

• Walk up or down inclines?

39

• Use a knife and fork?

13

• Move about in a dark room or hallway without falling?

34

• Move from sitting at the side of the bed to lying down on your back?

11

• Loosen a screw using a manual screwdriver?

31

• Write a simple sentence using a pen or pencil?

11

• Dress yourself in less than 10 minutes?

30

• Get items in and out of a wallet?

10

• Do you feel exhausted?

29

• Pour liquid into a cup?

9

• Move from the street to the sidewalk without a curb cut?

28

• Hold a card or letter in order to read it?

7

• Dress yourself, including shoelaces and doing buttons?

26

• Push the buttons on a television remote control?

7

• Shampoo your hair?

26

• Take a letter out of an envelope?

6

• Turn pages in a book?

3


Comparison of item difficulty of the 30 final floor items (plain font) with PROMIS PF-10 items (bolded font) arranged from highest to lowest percent of "With Much Difficulty or Unable to Do" responses.

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

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