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Filters: Author is Fred Ullrich and First Letter Of Last Name is W [Clear All Filters]
Does the Relationship of the Proxy to the Target Person Affect the Concordance between Survey Reports and Medicare Claims Measures of Health Services Use?. Health Services Research. 2016;51(1):314-27. doi:10.1111/1475-6773.12321..
A pilot study among older adults of the concordance between their self-reports to a health survey and spousal proxy reports on their behalf. BMC Health Services Research. 2016;16:485. doi:10.1186/s12913-016-1734-6..
The Concordance of Survey Reports and Medicare Claims in a Nationally Representative Longitudinal Cohort of Older Adults. Medical Care. 2014;52(5):462-468. doi:10.1097/MLR.0000000000000120..