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Table 7 Extract from item pool after Phase C

From: Pre-validation methods for developing a patient reported outcome instrument

Item No.

Item

Response

Instrument

594

During a typical day does your health limit bathing or dressing yourself?

Yes, limited a lot; yes, limited a little; No, not limited at al.

SF-36

597

Is your health today good enough that you can dress yourself?

1 = yes without difficult, 2 = yes, with some difficulty, 3 = yes, with great difficulty, 4 = no, not at all.

SWED-QUAL

598

Can you change clothes by yourself?

Yes/with difficulty/no

SUMI

601

Do you have difficulty dressing because of your visual problems?

No/occasionally/frequently

SUMI