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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