Journal of evaluation in clinical practice
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Studies have challenged the validity and underlying measurement model of the physical and mental component summary scores of the 36-item Short-Form Health Survey in, for example the elderly and people with neurological disorders. However, it is unclear to what extent these observations translate to physical and mental component summary scores derived from the 12-item short form (SF-12) of the 36-item Short-Form Health Survey. This study evaluated the construct validity of the SF-12 in elderly people and people with Parkinson's disease (PD) and stroke. ⋯ These observations challenge the validity and interpretability of SF-12 scores among the elderly, people with PD and stroke survivors. The standard orthogonally weighted SF-12 scoring algorithm is cautioned against. Instead, when the assumed two-dimensional structure is supported in the data, oblique scoring algorithms appear preferable. Failure to consider basic scoring assumptions may yield misleading results.
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Current perspectives concerning clinical decision making favour inclusion of patient preference for therapy. This exploratory study aimed to forge introductory insights into patient preference for outpatient-based rehabilitation after total knee replacement (TKR). ⋯ Patient global satisfaction is similarly high across different modes of outpatient rehabilitation despite differences in perceived benefits. The association between satisfaction and preference potentially indicates that provided the service is deemed high quality, the actual mode of therapy offered is less important to this patient population. Research is required, however, to establish the relationship between preference and outcome, the stability of preference across time, and the effect of multiple rehabilitation exposures on preference. For now, the quality of current uni-modal programmes could be enhanced by incorporation of features typically associated with alternative modes.