More research is needed to develop and apply claims-based frailty indices for confounding adjustment in pharmacoepidemiologic studies of older adults.
We found little research conducted on development and application of a claims-based frailty index for confounding adjustment in pharmacoepidemiologic studies in older adults. More research is needed to advance this innovative, potentially useful approach by incorporating the expertise from aging research.
Kim et al. (Tue,) studied this question.
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