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Table 2 Medical Costs for Diabetic Retinopathy between 2000 and 2004.

From: Healthcare costs associated with progressive diabetic retinopathy among National Health Insurance enrollees in Taiwan, 2000-2004

Group

Baseline/Final Status

n

%

Year

Total Cost*

2004/2000 ratio (adjusted ratio)

Excess Cost*

P Value**

Stable

 

Normal/Normal

3772

75.6

2000

62, 218

1.02 (reference = 1)

1, 543

0.594

    

2004

63, 761

   
 

NPDR/NPDR

208

4.2

2000

75, 506

1.38 (1.35)

29, 316

0.086

    

2004

104, 822

   
 

PDR/PDR

136

2.7

2000

117, 630

1.55 (1.50)

64, 123

0.036

    

2004

181, 753

   

Progressive

 

Normal/NPDR or PDR

815

16.4

2000

50, 712

2.12 (2.07)

57, 020

<0.001

    

2004

107, 732

   
 

NPDR/PDR

57

1.1

2000

88, 182

2.28 (2.22)

112, 779

0.042

    

2004

200, 961

   
  1. Abbreviations: NPDR, non-proliferative diabetic retinopathy; PDR, proliferative diabetic retinopathy.
  2. * Total cost & excess cost in NT dollars
  3. **P value for t-test