| http://www.w3.org/ns/prov#value | - We have previously studied this issue in depth, and sought to use the type of measure (self-report or database derived) that is most accurate for a particular variable [28] Thus, comorbidities such as hypertension and dyslipidemia are based on self-report, while A1c values, diabetes diagnosis, and utilization of care are derived from automated databases.
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