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Population Adjusted Indexes

  • US 20110060603A1
  • Filed: 09/09/2009
  • Published: 03/10/2011
  • Est. Priority Date: 09/09/2009
  • Status: Abandoned Application
First Claim
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1. An electronic system adapted to provide a performance rating index for a healthcare service comprising:

  • a user interface comprising a processor, a monitor and a user input device;

    an electronic connection to one or more memory storage devices, wherein at least one of the memory storage devices comprises an imprinted computer readable database, the database comprising;

    an index data base comprising at least one numerical indicator of health care performance outcomes and proxy outcomes for a plurality of patients at a plurality of selected time points, wherein the patients are grouped into one or more portfolios and the patients within each portfolio are each assigned to one of a plurality of clusters;

    computer readable instructions to average the outcomes and proxy outcomes for each cluster at each time point to produce a cluster outcome and cluster proxy outcome, and to add the average at each time point (t1-tn) to the cumulative average from the previous time point;

    and wherein at least one of the memory storage devices comprises an imprinted, computer readable database, the database comprising;

    a reference database comprising at least one proxy outcome that is the same proxy outcome as at least one proxy outcome in the index database for the equivalent time points as in the index database, wherein the proxy outcome at each time point (t1-t0) is added to the cumulative proxy outcome from the previous time point;

    a computer readable memory device electronically connected to the processor and adapted to have imprinted computer readable instructions for calculation of the index using the following relationship;


    Index Value(tn)=(Σ

    cluster outcome(i)*Q(i))(tn)/(Beta(tn))Wherein, cluster outcome (i) is the outcome value for cluster (i) in the cluster portfolio at time (tn);

    Q(i) is the segment weight of cluster (i) in the cluster portfolio at time (tn); and

    Beta is the systematic risk at time (tn) and the systematic risk is estimated by correlating the relative volatility of the cumulative proxy outcomes between the cluster portfolio and the reference portfolio.

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