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. 2006 Nov;65(Suppl 3):iii16–iii21. doi: 10.1136/ard.2006.059279

Table 3 Item clarity: analysis of pooled items with differing context and response options.

Respondents (n) Per cent unclear Standard error
Are you able to [bath and dress yourself, climb several flights of stairs, open a new milk carton, run errands and shop] 258 7.75 0.017
(Without any difficulty; With a little difficulty; With some difficulty; With much difficulty; Unable to do)
Does your health now limit you in […] 270 7.78 0.016
(Not at all; Very little; Somewhat; Quite a lot; Cannot do)
Over the past week, are you able to […] 258 8.53 0.017
(Without any difficulty; With some difficulty; With much difficulty; Unable to do)
How difficult is it for you to […] 258 8.91 0.018
(Impossible; Very difficult; Difficult; Slightly difficult; Easy; Very easy)
Due to my health […] 270 10.74 0.019
(Impossible; Very difficult; Difficult; Slightly difficult; Easy; Very easy)
How much difficulty do you have […] 258 11.24 0.020
(None; A little; Some; Quite a lot; Cannot do)
How easy is it for you to […] 258 11.63 0.020
(Very easy; Easy; Slightly difficult; Difficult; Very difficult; Impossible)
How much does your health limit you in […] 202 12.87 0.024
(Not at all; Very little; Somewhat; Quite a lot; Cannot do)
How much does your health now limit you in […] 338 15.68 0.020
(Not at all; Very little; Somewhat; Quite a lot; Cannot do)
For me, [bathing and dressing myself, climbing several flights of stairs, opening a new milk carton, running errands and shopping] is… 258 15.12 0.022
(Very easy; Easy; Slightly difficult; Difficult; Very difficult; Impossible)
Does your health now limit you in […]? If so how much? 136 17.65 0.033
(Yes, limited a lot; Yes, Limited a little; No, not limited at all)`
How much are you limited in […] 258 19.38 0.025
(Not at all; Very little; Somewhat; Quite a lot; Cannot do)