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Table 8 The Pearson correlation coefficient between the residuals from the stratified model (inpatient hospital and emergency department) with Potentially Preventable Readmissions (PPR) expenditures and Potentially Preventable Emergency Department Visits (PPV) expenditures respectively from 2011 to 2014

From: Expenditure variations analysis using residuals for identifying high health care utilizers in a state Medicaid program

  Index Year Correlation Coefficient with Residuals
log10(Per-member per-month PPR expenditures of index year) 2011 0.2974
  2012 0.2638
  2013 0.2755
  2014 0.2664
log10((Per-member per-month PPV expenditures of index year) 2011 0.2452
  2012 0.3214
  2013 0.3423
  2014 0.3165
log10(Per-member per-month PPR expenditures of next year) 2011 0.0990
  2012 0.0972
  2013 0.0948
log10((Per-member per-month PPV expenditures of next year) 2011 0.0908
  2012 0.1051
  2013 0.1121
  1. Residuals and high utilizers are identified from index year