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Table 3 Calculation for weights by CRG core health status from model 2012

From: Pharmaceutical cost management in an ambulatory setting using a risk adjustment tool

Core health status

Ln (C + 1) (a)

Expenditure C (b)

Standard weight (c)

1. Healthy

1.736

8.607

1

2. History of significant acute disease

3.552

58.068

6.75

3. Single minor chronic disease

4.176

109.242

12.69

4. Minor chronic disease in multiple organ systems

5.427

384.212

44.64

5. Single dominant or moderate chronic disease

5.535

427.851

49.71

6. Chronic disease in 2 or more Organ Systems

6.728

1413.267

164.21

7. Dominant Chronic Disease in 3 or more Organ Systems

7.496

3048.575

354.21

8. Dominant and Metastasic Malignances

6.606

1250.432

145.29

9. Catastrophic conditions

6.229

858.032

99.69

  1. (a) = Ln (C + 1).
  2. (b) = (1.693 ea)-1.
  3. (c) = bi/b1.