Physical and social functioning after @entity64 : comparison of the XXXX Impact Scale and Short Form-36.

@entity1 @entity64 @entity2653
BACKGROUND AND PURPOSE: This study evaluated assessments of physical functioning and social functioning using the @entity64 Impact Scale (SIS) and Short Form-36 (SF-36) to characterize health-related quality of life for @entity1 after @entity64 . METHODS: The SIS and SF-36 were administered to 278 @entity64 subjects approximately 90 days after @entity64 . The SIS-16 and SF-36 Physical Functioning (PF) domain characterize physical function, whereas the SIS Participation and SF-36 Social Functioning (SF) domains characterize social function. Descriptive statistics and an analysis of variance were used to characterize physical and social functioning after @entity64 across levels of the @entity2653 ( @entity2653 ). Rasch analysis was used to compare the hierarchies and ranges of item difficulties in the SIS-16 and the SF-36 PF domains, as well as in the SIS Participation and the SF-36 SF domains. RESULTS: Item hierarchies for the SIS-16 and SF-36 PF domain demonstrate that the SIS-16 contains less difficult items that could differentiate physical function among @entity1 with more severe limitations. Compared with the SF-36 SF domain, the item hierarchy for the SIS Participation domain contained more difficult items that could differentiate social function among @entity1 who were more active. In contrast to SIS-16, the SF-36 PF has major floor effects. In contrast to SIS Participation, the SF-36 SF domain has major ceiling effects. Both SIS-16 and SF-36 PF were able to discriminate well among the @entity2653 levels of 0 to 1, 2, 3, and 4. The SIS Participation domain was also able to discriminate across the @entity2653 levels of 0 to 1, 2, and 3 to 4. On the other hand, the SF-36 SF was similar among @entity2653 levels 0, 1, and 2 and among @entity2653 levels 2, 3, and 4. CONCLUSIONS: Both the physical and participation subscales of the SIS cover a wider range of item difficulty than their counterparts from the SF-36. Compared with the SF-36 PF and SF domains, the SIS-16 and SIS Participation are better able to capture physical functioning and social well-being in @entity1 with @entity64 .
